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• Pumps,<br />

Valves &<br />

Compressors<br />

Page 14-21<br />

• Chemical<br />

Industry<br />

Page 24-29<br />

Radar sensor<br />

for up to 450°C<br />

Page 41<br />

Tablet production &<br />

handling with vacuum<br />

technology<br />

Page 32<br />

May 2009


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Handheld Instruments<br />

Panel Meters & Controllers<br />

Calibration Equipment<br />

Wireless Sensors & Transmitters<br />

Data Loggers & Chart Recorders<br />

Ethernet Enabled<br />

Instrumentation<br />

Full Range of Heaters<br />

PLC’s HMI’s & Automation<br />

Products<br />

Pressure Transducers<br />

Load Cells & Strain Gauges<br />

Flow Meters & Transmitters<br />

pH, ORP & Conductivity<br />

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Your Single Source For Process Measurement and Control


Industry<br />

News<br />

Siemens reinforces portfolio<br />

with process industry software<br />

Siemens is expanding its industrial portfolio<br />

by acquiring Elan Software Systems SA,<br />

based in Toulouse, France, an international<br />

software supplier for Manufacturing Execution<br />

Systems (MES) in the pharmaceutical and<br />

biotech industries. This step will enable Industry<br />

Automation, a Division of the Siemens<br />

Industry Sector, to extend its global lead in<br />

the market for industrial software. "Particularly<br />

for the pharmaceutical and biotech industries,<br />

the Elan product range ideally supplements<br />

our Simatic IT MES portfolio. Elan<br />

has excellent manufacturing process knowhow<br />

in these industries, where it has been a<br />

recognized partner and preferred software supplier<br />

to many well-known companies for<br />

twenty years. On this foundation we intend<br />

to build our worldwide MES software business<br />

in these industries", said Ralf-Michael Franke,<br />

Business Unit CEO. " We will be continuing<br />

our successful strategy. Our customers can<br />

go on counting on our outstanding range<br />

of products and services and also rely on a<br />

strong partner under the Siemens roof who<br />

can offer them security of investment ",<br />

commented Jean-Pierre Amadio, Managing<br />

Director of Elan Software Systems SA.<br />

Bronkhorst wins award<br />

for its Mass-View flowmeter<br />

Bronkhorst has won a coveted Golden Gas<br />

Award for its innovative Mass-View instrument,<br />

developed as a high tech alternative to the<br />

widely used variable area meter. The awards<br />

recognise a product’s ability to solve an important<br />

challenge to the gas industry, its<br />

technological advancement and environmental<br />

‘green’ attributes; Mass-View secured<br />

the gold award in the Mass Flow Measurement<br />

& Control section, one of only<br />

seven categories. “Mass-View was designed<br />

to mimic the straightforward features and ver-<br />

tical format of the VA meter, whilst bringing<br />

considerable operator benefits, and has made<br />

quite an impact since its launch a year ago,”<br />

says Andrew Mangell. “This Golden Gas<br />

Award means it has been recognised as an<br />

innovative and environmentally attractive product<br />

by our peers and it should encourage those<br />

who are considering a VA replacement to look<br />

seriously at Bronkhorst’s Mass-View.”<br />

Merger control authorities approve<br />

acquisition of Ciba by BASF<br />

The U.S. Federal Trade Commission (FTC)<br />

and the Chinese merger control authority MOF-<br />

COM approved the acquisition of Ciba Holding<br />

AG by BASF. No conditions were imposed<br />

beyond those required by the European<br />

Commission. Furthermore, the condition imposed<br />

by the European Commission to reach<br />

a sales agreement for Ciba's business with<br />

the light stabilizer CHIMASSORB 119 FL<br />

(HALS) before closing has been fulfilled. The<br />

buyer is the Italian company Sabo S.r.l. As a<br />

result, the conditions for the settlement of<br />

the tender offer are now fulfilled (closing): The<br />

offer price of CHF 50.00 per tendered share<br />

can be paid and the Ciba shares transferred<br />

to BASF. As of April 9th, BASF holds approximately<br />

95.8 percent of Ciba shares.<br />

May 2009 3<br />

Emerson awarded contract to automate<br />

combined cycle gas turbine units<br />

Emerson Process Management announced today<br />

that it has been awarded the contract by<br />

energy company EDF to automate six new<br />

Combined Cycle Gas Turbine (CCGT) units with<br />

its PlantWeb digital plant architecture. The<br />

new installations located in West Burton in<br />

the UK, and the towns of Blénod-lès-Pont-à-<br />

Mousson and Martigues in France, will enable<br />

EDF to satisfy future energy supply requirements<br />

and meet its climate commitment. “At<br />

EDF we are looking to provide modern and<br />

efficient power generation that is responsive<br />

and flexible to the demand for electricity, “said<br />

Mr Bernard Bergerot, CCGT Projects Strategic<br />

Director within EDF’s Thermal Engineering<br />

Department. “To help achieve this we have<br />

sourced an automation solution that offered<br />

maximum reliability, was easy to maintain,<br />

and provided flexibility.” said Jérôme Durand,<br />

I&C team manager within EDF’s Thermal<br />

Engineering Department. “Emerson’s<br />

considerable execution expertise in worldwide<br />

electricity generation applications makes<br />

us a low risk partner for these significant projects,”<br />

said Bob Yeager, president of the Power<br />

& Water Solutions division of Emerson. “We<br />

are extremely pleased to be able to work with<br />

EDF to maximise efficiency of all six units.”


4 May 2009<br />

Welcome to the May issue of Processing & Control News Europe, providing you with an update<br />

on the newest products and showing you innovative solutions and applications from all corners<br />

of the processing world.<br />

We all are looking forward to the Achema trade show later this month, the international exhibition<br />

on chemical engineering, environmental protection and biotechnology takes place every 3<br />

years on the fairgrounds in Frankurt am Main.<br />

In our product focus on pumps, valves and compressors we show you how managing compressed<br />

air saves energy at a snack food plant, how canned motor pumps help to reduce costs and<br />

look into the subject of dispensing with piston or peristaltic pumps. In our chemical industry special<br />

you can discover polymer products used in water and food applications and how a safety system<br />

automates the burner control at a specialty chemical company.<br />

Furthermore you can read about filters and sieves that help a chocolatier to achieve the highest<br />

quality, a compact filling and packaging system for a pharmaceutical company and we compare<br />

methods of modern level measurement.<br />

For further information to all products and solutions covered please use our SLI Instant Reader<br />

Service. It's fast and easy.<br />

On our website www.pcne-online.com you will find the electronic version of Processing & Control<br />

News Europe. It contains all articles and product news from this issue and offers our easy SLI reader<br />

service.<br />

Our next issue will feature a product focus on safety & security and in our industry special we will<br />

look into topics concerning energy & water.<br />

Comments, ideas, questions? We welcome your feedback!<br />

Enjoy your reading!<br />

Sincerely yours<br />

Constanze Schmitz<br />

Editor PCN Europe+<br />

editor@pcne-online.com<br />

Dear Reader,<br />

<strong>Thomas</strong> <strong>Industrial</strong> <strong>Media</strong> bvba<br />

Hendrik Consciencestraat 1b, 2800 Mechelen, Belgium<br />

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Content<br />

Volume 6 - <strong>Issue</strong> 5<br />

3 Industry news<br />

6 Control system secures water supply<br />

8-9 Filling & packaging for injectables<br />

10-11 Methods & technologies for level measurement<br />

12 Intrinsic safety solution up for standardization<br />

14-15 Sealing systems for pumping applications<br />

16-17 Compressed air management for snack food giant<br />

18-19 Dispensing with piston or peristaltic pumps?<br />

20 Canned motor pumps help reducing costs<br />

22-23 ACHEMA map & exhibitors<br />

24-25 Polymer products for food & water applications<br />

26 Safety system automates burner control<br />

27 Shopping bags made of biodegradable plastic<br />

28 Filtration systems for large scale application<br />

30-31 Torqing Sense for process plant control<br />

32-33 Tablet handling with vacuum technology<br />

34-35 Filters & sieves for highest chocolate quality<br />

36 Video surveillance integrates thermal imaging<br />

41 Upcoming events<br />

42 Companies in this issue<br />

Cover background picture is courtesy of Westermo Teleindustri<br />

May 2009 5


6 May 2009<br />

A CC-Link based control system has<br />

integrated eleven boreholes in the<br />

Jutland region of Denmark, so that<br />

the on-demand water supply can<br />

cope with the increasingly variable<br />

daily demand brought about by<br />

the growth of tourist visitors.<br />

Control System Secures<br />

Jutland's Water Supply<br />

Rural West Jutland has long been a magnet<br />

for tourists, but a concerted promotional effort<br />

has built visitor number to the point<br />

where tourism is now a key part of the regional<br />

economy. However this means that the population<br />

varies considerably between the winter<br />

and summer; hence water demand can be<br />

as low as 1500m 3 per day and as high as<br />

5000m 3 .<br />

The existing supply system was based on<br />

five remote boreholes deep in the local forest<br />

and a main pumping station 1.2km way.<br />

Each borehole was 100m deep and could<br />

supply up to 30m 3 /hr. The control system,<br />

installed in the 1970s, was electromechanical<br />

and had no provision for remote monitoring<br />

so was very expensive to maintain.<br />

It was decided to sink another six boreholes<br />

and to upgrade the control system.<br />

One of the first technical issues to address<br />

was the highly distributed nature of the system,<br />

and this lead to the decision to opt<br />

for CC-Link which can be used over extended<br />

distances using either standard cabling or<br />

optical fibres.<br />

CC-Link (Control & Communication Link) is<br />

a field network system that processes both<br />

control and information data at high speed,<br />

to provide efficient, integrated factory and<br />

process automation. The dual functionality<br />

leads to a massive reduction in cabling requirements,<br />

and CC-Link is an ‘open’ system<br />

with many manufacturers making compatible<br />

control equipment for use with it.<br />

Because West Jutland is very flat lightening<br />

strikes are not uncommon. These can lead to<br />

transients in communication signals, so fibre<br />

optics was selected and repeater stations<br />

located at key points in the network.<br />

The master control installed at the central<br />

pumping station was a Mitsubishi Q-series PLC<br />

(programmable logic controller). This is connected<br />

to the fibre optic network through CC-<br />

Link compatible I/O modules made by Wago,<br />

which monitor a range of sensors and<br />

switches at each bore hole.<br />

The new control system monitors itself constantly<br />

and has high level diagnostic capabilities<br />

to determine the cause of any problems<br />

that are encountered. Further it uses predictive<br />

diagnostics, monitoring parameters such<br />

as ground water level and critical bearing temperatures<br />

to determine early if problems are<br />

likely to arise. This has reduced the running<br />

and maintenance costs considerable, despite<br />

the enlargement to the system.<br />

In normal operations, two, three or four boreholes<br />

feed the system, each working on a staggered<br />

two hour duty cycle before another borehole<br />

takes over. As demand increases more<br />

boreholes can be brought on line, although<br />

it only rarely goes above six working at<br />

once. All but one of the boreholes are fitted<br />

with a CC-Link controlled variable speed drive<br />

on its main pump, so that flow can be<br />

trimmed to exactly meet demand, and extraction<br />

is shared even over the system.<br />

Additionally each borehole is individually<br />

tested one night a month. This is done automatically<br />

over the CC-Link communications,<br />

putting the hole through a pre-defined 30<br />

minute routine that tests all its associated<br />

equipment and measures output of the<br />

ground water.<br />

CLPA<br />

SLI: enter 24518 at www.tim-info.com/pcne


plics ® plus – Modularity<br />

in a new dimension<br />

Simpler and more standardised – with plics ® plus, VEGA takes level,<br />

switching and pressure instrumentation into a new dimension.<br />

This tried-and-true instrument concept now impresses again with even<br />

greater housing variety and additional measuring principles. And its further<br />

simplified, uniform adjustment as well as optimised connection technology<br />

create additional synergies that save time and costs.<br />

We`ll be at your service<br />

Hall 10.1, Stand F32-J35<br />

www.vega.com<br />

SLI: enter 26212 at www.tim-info.com/pcne


8 May 2009<br />

Axellia is a leading producer<br />

of fermented anti-infective active<br />

pharmaceutical ingredients (API)<br />

and injectable finished products.<br />

To expand their manufacturing<br />

capacity for injectables, they<br />

invested in a complete compact<br />

liquid filling line solution with<br />

integrated end-of-line<br />

secondary packaging.<br />

Compact System Offers<br />

Filling and Packaging<br />

In order to meet its customers’ diversified requirements,<br />

Axellia recently began producing finished<br />

dosage forms of APIs into injectables.<br />

This enables the company to offer both raw<br />

APIs as well as finished products in an injectable<br />

format.<br />

Axellia’s existing filling line for injectables was<br />

exclusively devoted to powder filling, which<br />

was limited to only a few API products. To expand<br />

capacity for finished injectables and extend<br />

their portfolio to different API products, Axellia<br />

sought a liquid filling solution with sterile processing<br />

and lyophilisation capabilities. Due to the<br />

unstable nature of certain API products, they must<br />

be freeze-dried into dry powder form after being<br />

filled into injectable vials to ensure a reasonable<br />

shelf life of the finished product.<br />

Axellia ordered a complete filling line in the summer<br />

of 2007, consisting of a washing machine,<br />

sterilisation tunnel, filling and sealing machine,<br />

and an overseal capping machine. To meet the<br />

unique requirements of this project, the FLC<br />

3080 filling and sealing machine was chosen,<br />

which offers time-pressure filling, automatic<br />

cleaning-in-place (CIP) and sterilising-in-place<br />

(SIP) systems, and an automatic checkweighing<br />

system.<br />

Axellia specified the time-pressure filling system,<br />

instead of the traditional pump filling system,<br />

because it is easier to validate the CIP and SIP<br />

process. There are less mechanical parts in the<br />

time-pressure filling system compared to pump<br />

filling system, thus minimising maintenance<br />

and offering an easier cleaning and sterilisation<br />

process.<br />

The automatic CIP/SIP system feature of the machine<br />

offers some critical benefits to Axellia. It<br />

covers the in-line integrated sterilizing filter so<br />

there is no need to dismantle the system. The<br />

system complies with GMP regulations, minimis-


ing production times and eliminating the danger<br />

of product contamination.<br />

The fully automated, non-destructive checkweighing<br />

in-process control system ensures<br />

the best product quality control. With a speed<br />

of 300 vials per minute, the filling machine<br />

runs on an eight-hour shift. The checkweighing<br />

system controls eight random samples every three<br />

minutes and incorrect dosage amounts are automatically<br />

rejected without process interruptions.<br />

At the same time, the checkweighing system gives<br />

real-time in-process feedback to the time-pressure<br />

filling to ensure accurate dosing. This fully<br />

automated system reduces the necessity of<br />

having quality insurance engineers on site, thus<br />

reducing labour costs and minimising total<br />

costs of ownership.<br />

Uniquely for Axellia, the checkweighing inprocess<br />

control offers a tracking system designed<br />

in cooperation with the supplier of the freeze<br />

driers. This tracking system provides direct communication<br />

between the filling machine, the freeze<br />

driers and the capping machine, which ensures<br />

that incorrect vials will be automatically rejected<br />

even after the freeze-drying process. The<br />

whole automatic process and communication gives<br />

Axellia further quality assurance.<br />

When the complete filling line was delivered in<br />

the summer of 2008, the Project manager at Axellia,<br />

Mr. Knud-E Andersen, was impressed with<br />

the on-time delivery and the overall quality of<br />

the system. At the same time, he was also looking<br />

for an end-of-line secondary packaging solution<br />

to package the vials into cartons. Again<br />

Axellia turned to Bosch for a solution.<br />

For the end-of-line packaging, Axellia needed a<br />

labelling machine, a turntable, a cartoning machine,<br />

checkweigher, stretch bander and a case<br />

packer. However, Axellia didn’t want to source<br />

these individual modules from different suppliers.<br />

Bosch was able to offer a customised<br />

one-stop-shopping solution by sourcing the labelling<br />

machine, stretch bander and case packer<br />

from outside vendors and integrating them with<br />

its own cartoning machine and checkweighing<br />

unit. Thus, Bosch provided Axellia with a complete<br />

end-of-line packaging solution together with<br />

on-site installation and support.<br />

This service and support gives Mr. Knud-E Andersen<br />

the convenience of interacting with only one<br />

supplier and makes the whole line integration<br />

and validation process easier.<br />

The CUC cartoning machine offers excellent<br />

accessibility. The servo technology, industrial PC<br />

control systems and the ergonomic touch screen<br />

operating panel provide for secure, reliable and<br />

trouble-free production runs. The product insertion<br />

from the back of the machine significantly<br />

reduces maintenance time and provides for<br />

easier cleaning and trouble-shooting. The encapsulation<br />

of the drive components and the slanted<br />

guards considerably reduce the time required<br />

for line clearance.<br />

The modular checkweighing system KWE 4000<br />

meets pharmaceutical safety and cGMP requirements,<br />

as well as offering simple operation<br />

and easy line integration. The control cabinet at<br />

the rear of the checkweigher and the operator<br />

terminal allows excellent accessibility. Production<br />

statistics, trend curves and current weight<br />

are displayed on the standard screen which<br />

can be configured to show further information<br />

if required. The weight display can be altered to<br />

large numbers for remote readability by one<br />

single touch on the screen.<br />

“I have had a good experience with Bosch. We<br />

believe in Bosch, that’s why we buy it from<br />

Bosch,” said Mr. Knud-E Andersen.<br />

BOSCH PACKAGING TECHNOLOGY<br />

SLI: enter 27797 at www.tim-info.com/pcne<br />

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May 2009 9<br />

SLI: enter 27077 at www.tim-info.com/pcne


10 May 2009<br />

Level measuring and monitoring can<br />

be based on various technologies.<br />

The choice of the most suitable<br />

measuring principle is based on the<br />

medium to be measured. Further<br />

options include measuring or<br />

switching and contact<br />

or non-contact sensors.<br />

Methods & Technologies<br />

for Level Measurement<br />

Ultrasonic sensors, radar technology as well as<br />

some optical and capacitive sensors can be used<br />

for non-contact measurement, whereas with<br />

all other technologies, the sensors will have<br />

contact with the medium.<br />

Point Level vs. Continuous Level<br />

One of the main questions to be answered is<br />

whether one wants to measure at a point, or<br />

continuous level. Level switches have a proximity<br />

switch containing either one or two<br />

switch-points and indicate whether a certain<br />

level has been reached. Whereas this method<br />

only reflects the tank capacity at a certain point,<br />

a continuous measurement provides more<br />

detailed information by measuring the level via<br />

an analogue output signal. This very accurate<br />

method is often applied if liquids are to<br />

be dosed or mixed, or if adjustments, consumption<br />

or leakage are to be monitored.<br />

When choosing appropriate technologies and<br />

measuring methods, various factors have to be<br />

considered. The most important ones being container<br />

size, type and material, moving parts such<br />

as stirring devices in the container, the distance<br />

between minimum and maximum level, the<br />

medium’s consistence (conductive or nonconductive,<br />

homogenous or heterogeneous, temperature<br />

etc.). Additional factors like foam<br />

formation and foam detection, explosion hazard<br />

due to gas or dust, the accuracy of measurement<br />

required and the certificates needed<br />

(especially for applications in the fields of<br />

marine and food industry) may also need to be<br />

considered.<br />

Conductivity Based Level Measurement<br />

If the process medium is a conductive liquid,<br />

continuous or switch point measurement can<br />

be made using conductivity principle sen-<br />

sors. In conductive level switches, an output<br />

signal is connected to an insulated electrode.<br />

When the medium contacts the electrode, a<br />

minimal current flows through the medium to<br />

the housing. An electric booster collects this<br />

current and outputs it as a signal.<br />

A suitable device for continuous level measurement<br />

is LSP 05x. The reliable, easy to<br />

mount sensor conducts highly accurate measurements<br />

and is applicable with all mediums<br />

with a minimum conductivity of 50μS/cm.<br />

The measuring method is based on a low resistive<br />

measuring rod which dips into a conductive<br />

liquid. An oscillator generates an alternating<br />

current, which is fed to the whole<br />

measuring rod. Depending on the respective<br />

level, a proportional current flow is captured<br />

between the rod and the metallic tank wall or<br />

a reference electrode and then routed to an amplifier.<br />

The liquid’s resistance decreases proportionally<br />

to the immersed part of the rod. If<br />

the liquid is homogeneous, an absolute linear<br />

measurement of the fill level and thus a linear<br />

signal output of 4 to 20mA is provided. This<br />

level measurement device is ideal for use<br />

with tough or even pasty substances such as<br />

honey or tooth-paste. If foam formation impairs<br />

the measurement, a Teflon coating of the<br />

non-measuring part of the rod ensures there<br />

are no false signals.<br />

The fact that it is not affected by pressure, density,<br />

temperature or DK value opens up a wide<br />

application range for this technology. Due to<br />

the 3A-suitable process connection, the device<br />

can be used in the food and beverage industry<br />

as well as in pharmaceutical and biochemistry.<br />

One example for a special case is a company’s<br />

measurement of chocolate mousse,<br />

where a horizontal vessel meant the measuring<br />

rod could only be installed sideways.<br />

Therefore, the rod was angled 45° into the media<br />

and remained uncoated to ensure a signal<br />

path which served to record the level.<br />

Hydrostatic Level Measurement<br />

Level monitoring with the help of pressure measurement<br />

is a long-established method, with hydrostatic<br />

measurement being an easy-to-use<br />

and cost-efficient method. During this process,<br />

pressure sensors detect the hydrostatic pressure<br />

at the tank bottom which is directly pro-


portional to density and height of the liquid,<br />

therefore enabling the measurement of the liquid<br />

level. The devices have approval for hygienic<br />

applications and can be built into open or<br />

closed vessels as a standard feature.<br />

Whereas in open containers, a pressure measuring<br />

device mounted at the bottom of the tank<br />

detects the liquid level above the metering point,<br />

the internal pressure in closed containers is being<br />

measured via a second pressure transmitter<br />

mounted in the container tower.<br />

The difference between both values is the<br />

liquid level pressure, which is being indicated<br />

as fill level, volume or specific weight via<br />

either a downstream display or a controller. Since<br />

hydrostatical level measurement is independent<br />

of the medium’s viscosity and conductivity,<br />

foam forming or other substances in the tank,<br />

it is being applied in almost all industrial operation<br />

areas.<br />

Ultrasonic Readings Recorder<br />

With ultrasonic level detection, piezoelectric<br />

crystals in the sensor are being electrically activated<br />

to send out ultrasonic pulses. Reflected<br />

by the medium being measured, these impulses<br />

reach the sensor again after a short period<br />

of time and it is this varying delay that is<br />

used to measure the level. Therefore, this<br />

non-contact measuring method can be used<br />

in open or closed containers.<br />

The only factor to be considered is the sonic<br />

speed which depends on composition and<br />

temperature of the gas. Ultrasonic sensors<br />

are mainly used for the level monitoring of granulate,<br />

paste or liquid. For applications with aggressive<br />

liquids or gases, the standard sensors<br />

should only be used in measuring instruments<br />

with appropriate protection. To meet this requirement,<br />

UNAR sensors are equipped with a<br />

chemically resistant parylene coating with<br />

excellent barrier effects towards inorganic<br />

acid solutions, organic solvents and water<br />

vapour.<br />

Capacitive Sensors<br />

Capacitive sensors detect a medium by making<br />

use of its inductive capacity which is different<br />

to that of air. If a plate capacitor’s<br />

sensitive capacity is magnified due to external<br />

circumstances, a RC oscillator vibrates. The<br />

resulting reverse in current is analysed by<br />

the downstream functional unit and then<br />

leads – depending on the signal – to a circuit<br />

switch.<br />

This happens if the liquid or solid medium to<br />

be measured is located at a certain distance<br />

to the active area. The digital switch-point can<br />

be adjusted via potentiometer directly on<br />

the sensor. Capacitive sensors are usually<br />

maintenance-free and easy to install. They are<br />

used to monitor the level of diverse contact<br />

or non-contact media through a tank wall<br />

made of plastics or glass and can be used on<br />

non-conductive substances such as porcelain,<br />

wood, clay, pellets, paper, carton, powder,<br />

grain, tea or chocolate. The main fields of<br />

application are the chemical, food and plastics<br />

industry.<br />

Optical Sensors<br />

Optical sensors contain a glass quartz head carrying<br />

an infrared diode as a sender and a<br />

light-sensitive semiconductor as receiver.<br />

With these sensors, levels can be monitored<br />

without liquid contact via transparent or halftransparent<br />

conduits or tubes using a specially<br />

designed FFDK16 version.<br />

Since light is being used for the level detection,<br />

the optical method can measure conductive<br />

as well as non-conductive liquids. If<br />

the sensor head is surrounded by air, the limit<br />

angle for the total reflectance of the light<br />

changes.<br />

On the other hand, if the head made of borosilicate<br />

glass contacts liquid, the light beam is<br />

diverted into the fluid and the sensor output<br />

changes its switching status. FFAR is available<br />

with a variety of field mountable casings for<br />

different application conditions, for example<br />

May 2009 11<br />

stainless steel makes it extremely resistant to<br />

a great number of aggressive liquids. The liquid<br />

medium can either be conductive or nonconductive,<br />

as long as their reflection rate is<br />

not too high.<br />

Leakage Sensors<br />

Leakage sensors can safely and easily detect<br />

leaking liquids starting at a minimum of 1 ml,<br />

by using the optoelectronic method. With<br />

this procedure, a fast response time is achieved<br />

to keep the loss of liquid as small as possible<br />

and to avoid a contamination of the facility. Leakage<br />

sensors can be mounted directly at the tank<br />

bottom or on a supporting device.<br />

A reliable system for leakage control is very<br />

important in many areas, such as warehouses,<br />

conditioning cabinets, fuel deposits or with industrial<br />

machines. Only if leakages are detected<br />

early enough can according measures be taken<br />

and damages be prevented, for example by<br />

emergency cut-offs for pump systems.<br />

More methods for level monitoring<br />

In addition to the measuring methods mentioned<br />

so far, there are further technologies used for<br />

level detection and monitoring. Another noncontact<br />

method is radar which is based on the<br />

running time, from sending to receiving the reflected<br />

wave.<br />

For radiometric measuring, radioactive compounds<br />

are used as radiation source, and vibration<br />

sensors are level switches based on the<br />

vibrating-fork principle. There are also level<br />

switches based on magnetic gauges and flow<br />

rate sensors, mainly used in process technology<br />

to measure volume and mass flow necessary<br />

for accounting and dosing in charge<br />

processes.<br />

Costs<br />

When deciding for or against a measuring<br />

method, several process-related factors have<br />

to be considered – one of them being costs.<br />

Continuous level measuring is generally more<br />

complex and therefore more cost-intensive<br />

than proximity switches. However, acquisition<br />

costs should not be the decisive criteria,<br />

since in the long term, a more expensive<br />

measuring system can pay off thanks to low<br />

maintenance, high accuracy and integration<br />

possibilities in the control loop.<br />

BAUMER BOURDON-HAENNI<br />

SLI: enter 27829 at www.tim-info.com/pcne


12 May 2009<br />

Dynamic Arc Recognition and<br />

Termination (DART) is considered<br />

to be an important innovation for<br />

intrinsic safety applications. The<br />

dynamic, intrinsically safe electric<br />

circuit represents a new approach<br />

to eliminating the strict power<br />

limitations of applications in<br />

explosion hazardous areas.<br />

Dynamic Arc Recognition and Termination (DART)<br />

is a new technology developed by Pepperl+Fuchs<br />

that has met widespread recognition within the<br />

process control scene. Recently, interested process<br />

control experts met at the Physikalisch Technische<br />

Bundesanstalt (PTB) in Braunschweig,<br />

Germany to discuss the technical details of the<br />

new approach to intrinsic safety and agree on coordinated<br />

efforts for its introduction to the global<br />

process market. One major factor along the way<br />

is the fact that procedures for IS certification for<br />

DART are available, but they still need to be<br />

proven for introduction into IEC standards.<br />

Present solutions for intrinsically safe electric circuits<br />

strictly limit the power available to operate<br />

field devices inside explosion hazardous areas in<br />

order to prevent sparks that are hot enough to trigger<br />

an ignition. DART follows a completely different<br />

approach and is defined as a “dynamically acting<br />

intrinsically safe circuit.” This technology<br />

detects the current and voltage development<br />

typical of the formation of a spark and switches<br />

off the power source within milliseconds. With DART,<br />

present power limitations are obsolete, and current<br />

flow is now possible above the levels defined<br />

in IEC 60079-11 within the ex zone. All other aspects<br />

defining intrinsic safety, such as utilization,<br />

redundancy and general fault considerations remain<br />

untouched.<br />

The participants of the PTB workshop agreed<br />

that DART is a viable technology for electric explosion<br />

protection in the future. That is why the<br />

Intrinsic Safety Solution<br />

up for Standardization<br />

issue at the workshop was not whether the development<br />

of this technology should continue to<br />

drive toward general market acceptance but<br />

rather, how to achieve this goal. At the center of<br />

discussions was a common and coordinated approach<br />

to turn DART into a breakthrough technology<br />

in the field of intrinsic safety and gain global<br />

acceptance from the process industry. However,<br />

reaching this goal still requires the clarification<br />

of certain details. One of them is how to achieve<br />

a standard-compatible proof of the effectiveness<br />

of DART.<br />

The PTB relies on financial backing from the industry,<br />

in order to introduce DART to the market.<br />

A number of leading companies in the field of automation<br />

technology have agreed to provide the<br />

needed funds for the PTB to continue with the project.<br />

In particular, this includes the definition of safety-related<br />

parameters, as well as interoperability<br />

issues.<br />

The PTB is working with a leading institution in<br />

the field of technical thermodynamics to complete<br />

the basic research still required to establish<br />

DART as an industry standard. This project requires<br />

simulation of the chemical processes triggered<br />

by a spark under special conditions. The results<br />

will enable specific conclusions to be formulated<br />

for the evaluation of dynamic electric circuits.<br />

Pepperl+Fuchs has applied for international<br />

patents for their DART technology under the de-<br />

scription “electrical circuit with incentive arc<br />

prevention means” (WO 2006/003445). Using this<br />

technology, therefore, will require a license with<br />

both a one-time and an annual license fee. However,<br />

the company emphasizes that such costs will<br />

be required only until the technology has reached<br />

international standardization. As soon as this<br />

goal is achieved, the patent will be licensed free<br />

of charge to all interested companies.<br />

In other words, all switches are posed and there<br />

are no more obstacles preventing the introduction<br />

of DART as a future technology for explosion<br />

hazardous areas. That is why the participants of<br />

the PTB workshop are convinced that DART will<br />

be the enabling technology to pave the way for<br />

an intrinsically safe, Power-over-Ethernet concept.<br />

As far as ATEX certification is concerned, the<br />

PTB sees no basic problems, although the required<br />

documentation still needs to be completed.<br />

Since the required standard-compatible evaluation<br />

of DART is not possible until the research is<br />

complete, the next step will be the development<br />

of an IEC Technical Specification (TS). There<br />

are still quite a few steps on the way to IEC<br />

standardization. However, it is only a matter of time<br />

until this technology is part of the technical<br />

standard of the global process industry and opens<br />

completely new applications within the hazardous<br />

area.<br />

PEPPERL & FUCHS<br />

SLI: enter 27963 at www.tim-info.com/pcne


Always<br />

a good solution<br />

You’re searching for an efficient measurement solution.<br />

No problem with KROHNE.<br />

As one of the world‘s market leaders for measurement instrumentation,<br />

we‘ve been impressing our customers in the process industry for<br />

nearly 90 years with innovations that set the standard for our competitors.<br />

KROHNE has unique expertise in the field of flow and level measurement.<br />

We not only show our know-how in standard applications, but also, and par-<br />

ticularly, in applications that are demanding and require tailor-made solutions.<br />

Our devices can handle almost any medium: aggressive or abrasive, at high<br />

pressures, temperatures and viscosity, with high solid content, saturated<br />

steam or foam and moving surfaces.<br />

KROHNE – Process engineering is our world.<br />

Please see our website for more information.<br />

SLI: enter 27968 at www.tim-info.com/pcne


14 May 2009 PRODUCT FOCUS<br />

Proper specification and selection of<br />

sealing systems for centrifugal<br />

pump power frame applications can<br />

help sustain the service life of<br />

pumps and avoid the need for pump<br />

replacement or rebuilds and their<br />

associated costs in time and money.<br />

Pumps, Valves, Compressors<br />

Sealing Systems for<br />

Pumping Applications<br />

Sealing systems have their work cut out for<br />

them in pump applications. When a bearing<br />

seal in a pump fails, for example, contaminants<br />

have an opening to infiltrate both the bearing and<br />

the lubricant. Cleanliness of the lubricant will exert<br />

a profound effect on bearing service life.<br />

And should lubricant be lost from the bearing due<br />

to seal failure, dry-running operation ultimately<br />

could lead to premature and rapid failure of<br />

the bearings.<br />

Radial shaft seals have long been the most<br />

common types of sealing solutions for bearing<br />

arrangements in ANSI class pumps. In general,<br />

radial shaft seals will function as barriers to retain<br />

lubricant, and exclude contaminants.<br />

Labyrinth type seals, also known as bearing isolators,<br />

are specified for ANSI Enhanced and API<br />

rated process pumps and are gaining acceptance<br />

in other service classes. These seals feature a dynamic,<br />

non-contacting internal path to exclude<br />

fluid and particle contamination while retaining<br />

lubrication. They are based on metal or plastic<br />

material for chemical inertness and, when installed<br />

correctly, offer a very long service life.<br />

While the most suitable sealing systems for<br />

pumps will be governed by an application’s<br />

particular demands and operating conditions, some<br />

general guidelines can be offered to assist in making<br />

proper choices.<br />

In API-design centrifugal pumps (generally<br />

heavy-duty process pumps) bearings are usually<br />

located at two positions: A single-row deepgroove<br />

ball bearing near the impeller accommodates<br />

radial loads and floats in the housing<br />

(which allows thermal expansion of the shaft) and<br />

an angular contact ball bearing set is fixed in the<br />

housing in the thrust position at the coupling end.<br />

The angular contact set secures the impeller in<br />

the proper axial position and handles the thrust<br />

load and a portion of the radial load.<br />

Bearing locations in ANSI-design pumps (generally<br />

light- and medium-duty pumps) are similar<br />

to API configurations, except the angular contact<br />

ball bearing set is replaced by a double-row<br />

bearing (single bearings with two rows of balls<br />

in the thrust position).<br />

Bearing arrangements for pumps generally<br />

serve to enable smooth, efficient shaft rotation.<br />

Sealing systems will contribute to a bearing’s<br />

reliable operation and ability to reach<br />

full service life.<br />

Contacting radial shaft seal solutions typically will<br />

incorporate: A shell (sheet steel or elastomer<br />

covered) to which the lip material is bonded<br />

and provides the requisite interference fit of the<br />

seal in the housing bore; a sealing lip of elastomer<br />

or other material, which provides dynamic and static<br />

sealing against the shaft. In pump power<br />

frames, the sealing lip should always point toward<br />

the material to be retained. Most rubber sealing<br />

lips are made from a formulation of nitrile rubber.<br />

Some specially produced material variations<br />

have been introduced for use with synthetic<br />

fluids or chemically aggressive lubricants.<br />

Users can select from a wide variety of seal designs<br />

(and materials) to accomplish specific<br />

functions. Particularly in pump bearing applications,<br />

seals will be exposed to low and relatively<br />

constant pressure differentials so general purpose<br />

seals are sufficient. However some types of<br />

pumps utilize radial seals as the main pressure<br />

retention seal (in which the seal cavity is pressurized).<br />

Seal manufacturers offer particular lip<br />

profiles for this role that resist deformation under<br />

pressure loading and moderate surface<br />

speeds.<br />

In cases where higher shaft speeds are exhibited,<br />

the permissible pressure differential across the<br />

seal becomes smaller. As pressure is applied to<br />

the seal, more of the lip surface is forced against<br />

the shaft, which produces greater friction (as<br />

does increased shaft speed). Since too much<br />

friction will result in faster wear and shorter<br />

seal and shaft life, the two parameters (pressure<br />

and surface speed or PV factor) must be balanced<br />

against each other. Some radial designs,<br />

principally using PTFE lip material, can accept a<br />

PV in excess of 250,000 depending on the service<br />

life requirements.<br />

Specification of seals for pumps begins with selecting<br />

the correct general design for the application.<br />

For example, a spring-loaded radial sealing<br />

lip will usually be required to retain a head<br />

of oil or low viscosity fluid. Correct sizing for the<br />

hardware should follow (inch and metric dimensions<br />

and tolerances should not be mixed).<br />

For maximized service life and optimized seal performance,<br />

users then should evaluate all relevant<br />

operating conditions, which will further guide in<br />

seal selection. Among the key operating parameters<br />

when considering sealing systems in pumps<br />

is the surface speed. Each type of radial shaft seals<br />

has surface speed limits. Generally speaking,<br />

surface speed capability and parameters such as


Pumps, Valves, Compressors PRODUCT FOCUS May 2009 15<br />

seal torque, power consumption, under-lip temperature,<br />

and the effect of dynamic run-out will<br />

take inverse proportions. All these speed-related<br />

influences can ultimately contribute to shortened<br />

seal life.<br />

The majority of standard small bore radial seals,<br />

under 8 in. shaft diameter, are rated up to<br />

3600fpm (feet per minute) or 18.3m/s (meters<br />

per second), while the large diameter seals,<br />

over 8 in. shaft diameter, are rated to approximately<br />

5000fpm or 25.4m/s. Plastic bearing isolators<br />

can usually accept up to 5000fpm (25 m/s)<br />

while metallic versions can be capable of<br />

10,000fpm (50.80m/s). To exceed these speed<br />

recommendations typically calls for special design<br />

considerations.<br />

Design variations that can help combat the negative<br />

effects of higher shaft speeds include reducing<br />

the radial load of the seal lip; changing<br />

to a sealing material that can handle higher<br />

temperatures; changing the lubricant type or<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

SLI: enter 26870 at www.tim-info.com/pcne<br />

viscosity; optimizing the shaft sealing surface; and<br />

turning to a non-contacting labyrinth seal design.<br />

• Temperature. Each seal material has an optimum<br />

range. Beyond that, thermal stress will harden the<br />

compound (and heat aging is a more common cause<br />

of failure than wear for nitrile rubber). This can often<br />

be observed as subjective hardness or a series<br />

of radial cracks. Upgrading the seal material<br />

(such as to a fluoropolymer or PTFE) can extend<br />

a seal’s thermal limit to meet many pump system<br />

requirements.<br />

• Pressure. Pressure loading from system conditions<br />

or a fault (such as a plugged vent) will mechanically<br />

load and distort a seal’s lip profile, resulting<br />

in rapid wear and failure. Standard radial<br />

seals are designed for only about 7 psi (pounds<br />

per square inch). Special profiles and materials can<br />

be specified to compensate for pressure.<br />

• Surface finish preparation. For optimum radial<br />

lip seal performance and service life, a surface fin-<br />

ish of 0.20-0.43μm Ra is recommended with<br />

machine lead of less than 0 +/- 0.05°. Contact<br />

surfaces for labyrinth seals are less critical and finishes<br />

suitable for static o-rings are satisfactory.<br />

Rubber radial seals provide economical and versatile<br />

protection for bearings in pumps. Their contact<br />

with the shaft can deliver both positive fluid<br />

retention and hermetic sealing of the housing.<br />

But it should be understood that optimizing a sealing<br />

system is a balancing act. Careful definition<br />

of the application requirements, evaluating all<br />

conditions, and adopting a holistic approach to<br />

seal specification can contribute significantly to<br />

seal performance and service.<br />

Partnering at the outset with an experienced manufacturer<br />

of bearings and seals can help chart the<br />

most appropriate course for matching seal with<br />

pump application.<br />

SKF<br />

SLI: enter 26942 at www.tim-info.com/pcne


16 May 2009 PRODUCT FOCUS<br />

In a large snack food plant, a<br />

Compressed Air Management<br />

system has helped to reduce energy<br />

bills, by combining the compressed<br />

air supply for production operations,<br />

integrating retrofit variable<br />

speed drives, reducing<br />

pressure and fine tuning.<br />

Pumps, Valves, Compressors<br />

Compressed Air Management<br />

Saves Energy at Food Plant<br />

The energy savings have been achieved by applying<br />

a combination of system pressure optimisation<br />

principles, matching air generation closely<br />

to demand, ensuring compressors are working<br />

at their optimum speed / efficiency, and operating<br />

compressors only when they are needed.<br />

The central element of control included in both<br />

sites is a SX control unit, a specialised supervisory<br />

and control module designed to provide optimised<br />

pressure and sequence management<br />

of all the air compressors on each site.<br />

Nigel Clark, EnergAir Regional Manager, comments,<br />

“The project began with an audit carried<br />

out on the two production areas that until recently<br />

used completely separate compressor houses<br />

and air ring mains. EnergAir carried out a comprehensive<br />

audit that measured system pressure,<br />

air usage and benchmarked a series of key performance<br />

indicators before the change and upgrade<br />

including; accurate metering of power consumption<br />

in kW/hours, air production volume<br />

in m 3 and efficiency in kW/m 3.”<br />

Analysis of the data led to a set of estimated<br />

results that predicted the energy savings<br />

achievable by fitting an management control<br />

system and retrofit VSDs at each site. There are<br />

seven compressors in total, three 160kW units<br />

and four 200kW units - production runs 24hrs.<br />

Based on the overall cost of installing the<br />

system balanced against the reduction in energy<br />

that could be achieved, the payback period<br />

was estimated at 18 months for the entire<br />

project.<br />

Based on these predictions, the Facility<br />

Co-ordinator at the time ordered the EnergAir<br />

system and retrofit VSDs. After seeing<br />

the potential this system had for achieving<br />

energy savings the customer was committed<br />

to installing it and getting the best<br />

results from it. Other plants with similar generating<br />

capacity have seen substantial<br />

recorded savings and so the project was<br />

quickly signed off. As predicted, the system<br />

did pay for itself after just eighteen months<br />

in operation.<br />

Most large manufacturing companies are<br />

firmly committed to reducing energy usage<br />

and it is a responsibility carried by members<br />

of the facilities and production teams.<br />

Large plants such as this are continually<br />

changing, and the level of visibility and fine<br />

control provided by the software has enabled<br />

the facilities team to continue making<br />

savings and improvements. For example, they<br />

have now connected the main air supply between<br />

both sites and use the EnergAir system<br />

to optimise overall system pressure and<br />

air generation in both compressor houses,<br />

but controlled and working as one.


Pumps, Valves, Compressors PRODUCT FOCUS May 2009 17<br />

The increases in efficiency are so pronounced,<br />

that they have been able to add another complete<br />

production line since the initial install, without<br />

having to upgrade the compressed air generation<br />

facilities and have maintained the increased<br />

efficiency levels - generating efficiency<br />

is now at 97.18%. The compressors are also<br />

being used to generate hot water for the site,<br />

something that they use a lot of on the production<br />

line. There are also plans to use hot air vented<br />

from the compressors through a heat exchange<br />

process for heating the building during the<br />

winter months.<br />

Pressure sensors are fitted throughout the system<br />

and used to feed live data into the EnerSoft<br />

– Analysis data management software<br />

that is hosted on an onsite PC, this<br />

collates and records all the data and makes<br />

it available to the EnerSoft – Visual PC visualisation<br />

package. The complete compressed<br />

air system, from compressor, through to the<br />

dryers and out across the plant is represented<br />

visually on screen in a Windows environment,<br />

with key indicators such as system<br />

pressure and efficiency displayed clearly on<br />

screen as analogue style dials.<br />

Through a series of SCADA style screens, the<br />

operators can drill down and check on the<br />

performance if individual compressors, set<br />

threshold alarms for performance variables,<br />

schedule servicing and maintenance tasks<br />

and crucially see the effect any changes<br />

made have on the system immediately.<br />

Using EnerSoft – Analysis data manager<br />

any of the Key Performance Indicators (KPIs)<br />

can be tracked over time and reported on at<br />

fixed intervals.<br />

The data is updated every few seconds and the<br />

information seen on the screen is virtually live,<br />

making it far easier to accommodate changes<br />

to the plant and make positive changes to keep<br />

efficiency maximised, every time a change is<br />

made, the results are displayed instantly. Prior<br />

to having the EnergAir system the facilities<br />

team had to collate data over a period of<br />

time using much cruder indicators such as energy<br />

bills and it was a minimum of ten days<br />

before we could see the results, in that time<br />

other factors could have cancelled out the improvement<br />

they made and they would never<br />

be completely sure how effective the change<br />

had been.<br />

One thing in particular that has shown great<br />

savings and can be tweaked onsite is the<br />

overall system pressure, there are certain<br />

limits to how low it can go based on manufacturers<br />

recommended minimum operating<br />

pressures for machinery on the production line,<br />

some of which were set quite high.<br />

After consulting the machinery manufacturers<br />

it was discovered there was a large overestimate<br />

made in some cases to offset the effects<br />

of the machinery being used in plants<br />

with little or no accurate secondary pressure<br />

sensing facilities. The team has been able<br />

to safely reduce the overall system pressure<br />

by over half a bar in increments. The savings<br />

achieved by that half a bar reduction are<br />

substantial bearing in mind the site uses<br />

over a Megawatt of generating capacity just<br />

for compressed air.<br />

ENERGAIR SOLUTIONS<br />

SLI: enter 27823 at www.tim-info.com/pcne<br />

GSR-SP-JM-0903_7<br />

Definitely<br />

the right choice!<br />

with Cartridge Plug-On<br />

with removable filter cartridge<br />

pressure range 0-300 bar<br />

for CNG- / H 2 O-Filling stations<br />

NEW!<br />

3/2-way<br />

direct acting<br />

slide valve<br />

pressure range<br />

0-250 bar<br />

for high<br />

pressure<br />

applications<br />

Please visit us at the ACHEMA<br />

Hall 9.0, Booth D33-D34<br />

GSR Ventiltechnik GmbH & Co. KG<br />

Im Meisenfeld 1 • D-32602 Vlotho<br />

P.O. Box 2060 • D-32595 Vlotho<br />

Phone: +49 5228 779-0<br />

Fax: +49 5228 779-190<br />

www.ventiltechnik.de<br />

info@ventiltechnik.de<br />

Innovative Valve Technology<br />

SLI: enter 26521 at www.tim-info.com/pcne


18 May 2009 PRODUCT FOCUS<br />

Dispensing Biopharmaceuticals:<br />

Peristaltic or Piston Pumps?<br />

Traditional filling technology based<br />

on piston pumps and time pressure<br />

filling systems, but new challenges<br />

and stringent validation requirements<br />

have put the focus on peristaltic<br />

pumps. They are now often<br />

preferred for fluid transfers in all<br />

types of environments.<br />

The pharmaceutical industry has had to adapt to<br />

major changes and challenges over the last<br />

decade. This has been mainly driven by the fact<br />

that many of the blockbuster drugs are running<br />

out of patent, forcing the industry to focus more<br />

on R&D with greater interest towards developing<br />

biopharmaceutical products. This trend has<br />

highlighted the need for efficient, small batch,<br />

aseptic liquid processing and fill/finish operations.<br />

In addition, ever-increasing FDA demands, especially<br />

regarding cleaning validation, have forced<br />

the industry to look for more efficient and safer<br />

production technologies.<br />

The traditional filling technologies have been piston<br />

pumps and time pressure filling systems, but<br />

new challenges and more stringent validation requirements<br />

have put the focus on peristaltic<br />

filling technology.Peristaltic pumps are extremely<br />

convenient to use. They are often the preferred<br />

choice for fluid transfers in all types of environments<br />

such as in the laboratory or in the heavy<br />

chemical industry.<br />

On the other hand, piston pumps are also very<br />

popular and have proven themselves over the years,<br />

but piston pumps can have drawbacks in some<br />

applications. A piston pump is designed with many<br />

mechanical parts such as valves and seals that<br />

are in direct contact with the product. These<br />

components, which will wear out, need to be taken<br />

apart, cleaned and re-assembled between<br />

each use. Even the high-end valveless ceramic<br />

piston pump comes into direct contact with the<br />

product. Additionally, diligent care is required to<br />

prevent damage to the piston in these extremely<br />

fragile pumps.<br />

When using peristaltic pumps, product only<br />

comes in direct contact with a single piece of tubing,<br />

which can easily be replaced after use. This<br />

single-use feature makes the peristaltic pump an<br />

Pumps, Valves, Compressors<br />

attractive alternative to piston pumps for dispensing<br />

of biopharmaceutical injectable drugs.<br />

For the last few years, the pharmaceutical industry<br />

has been searching for ways to reduce the cost<br />

for developing and producing new drugs. The concept<br />

of the disposable or single-use production<br />

factory is becoming a reality. As a point of<br />

reference, it is important to note that while<br />

most of the existing drugs used today are chemically<br />

based, most of the promising new drugs<br />

are biopharmaceuticals which are developed<br />

in liquid form.<br />

An innovative breakthrough for making peristaltic<br />

pumps accurate occurred 21 years ago when<br />

Flexicon A/S of Denmark created the “pulsationfree”<br />

peristaltic pump.<br />

Once pulses were removed, the potential for<br />

high accuracy dispensing was made possible. Today,<br />

and five generations of improvements later,<br />

peristaltic dispensing pump accuracy rivals piston<br />

pumps down to micro fill volumes.<br />

Two key design features allow the peristaltic<br />

pump to be accurate for dispensing:<br />

• The use of multiple rollers<br />

• The removal of the typical peristaltic flow pulses<br />

by using offset rollers<br />

It has been determined that the optimal configuration<br />

for a pump head design is to have two<br />

sets of six rollers, with each set of rollers offset<br />

with respect to one another. As the product is<br />

drawn by two tubes through the pump head, they<br />

merge into a single tube via a y-connector, and<br />

thereafter, the pulses add-up to cancel each<br />

other. The resulting pulsation-free flow is then<br />

controlled using a precise positioning motor<br />

and special software allowing for accurate dispensing.<br />

There is a huge selection of tubing available<br />

made of many materials and of various sizes, many<br />

of them made specifically for peristaltic pump use.<br />

Nonetheless, to allow for consistently accurate<br />

dispensing down to the micro litres, it is imperative<br />

that both the tubing and the pump head be<br />

designed to work together from the beginning and<br />

that they both must have close dimensional<br />

tolerances.<br />

Key mechanical characteristics in the selection<br />

of peristaltic pump tubing include: uniform wall<br />

thickness, consistent material hardness and<br />

high mechanical “memory” after compression<br />

Finally, and in consideration of dispensing injectables,<br />

the silicone tubing must be of the highest<br />

quality to meet the FDA’s good manufacturing<br />

practices requirements (cGMP).<br />

When compared to piston pumps and other dispensing<br />

technologies, peristaltic pumps offer<br />

the following benefits:<br />

• One Pump Can Fill a Wide Range of Fill Volumes<br />

- A single peristaltic pump can fill volumes<br />

between 0.1 ml to 250 ml, simply by<br />

changing the tubing size. More than one piston<br />

pump would be required to meet a similar<br />

fill range.<br />

• Fast Set-up and Calibration - It can take less<br />

than 5 minutes to load the tubing, purge the<br />

system, make one calibration and begin filling.<br />

• Cross-Contamination - Peristaltic pumps do not<br />

require cleaning when utilized for single-use<br />

dispensing, since each batch is produced with<br />

new tubing that creates a new fluid path or set<br />

of contact parts. In comparison, when filling<br />

injectable drugs on a traditional piston filling<br />

line, it is not uncommon to buy dedicated<br />

piston pumps for each product in order to<br />

prevent cross-contamination between batches.<br />

Those pumps require cleaning, sterilizing<br />

and maintenance.<br />

• Greatly Reduced Cleaning Validation - Cleaning<br />

validation is a cGMP requirement to<br />

demonstrate and document that the equipment<br />

used for processing an injectable drug is clean<br />

and free from contaminants<br />

For a multiple-use piston pump filling system,<br />

cleaning validation typically requires two qualified<br />

resources up to four months to write-up the<br />

protocols and execute them. For each subsequent<br />

production batch, cleaning in accordance with<br />

the validated procedures has to be maintained<br />

and properly documented each time throughout<br />

the drug’s commercial life.


Pumps, Valves, Compressors PRODUCT FOCUS May 2009 19<br />

In addition to these labor costs are other costs<br />

associated with the use of water for injection<br />

(WFI), for washing, rinsing, and for sterilization<br />

using pure steam and finally the cost of detergents<br />

and water disposal.<br />

• Flow Control - It is very easy to adjust flow<br />

speed via the peristaltic pump interface in order<br />

to prevent foaming or splashing of the product.<br />

It is also possible to adjust how fast<br />

the fill speed is reached using the ramp-up<br />

and ramp-down feature. This is helpful in<br />

optimizing overall fill time to permit greater<br />

throughput from the filling machine.<br />

• Gentle Handling for Shear Sensitive Products<br />

- The valve system in the piston pump generates<br />

high-speed flow through small orifices,<br />

which can potentially damage biological<br />

products. Even valve-less piston pumps<br />

generate higher pressures, higher shear factors<br />

and, by design, inherently produce a<br />

“dead volume” with each stroke. Peristaltic<br />

pumps are valve-less and only apply low<br />

pressure to move the product.<br />

The typical industry standard for fill volume accuracy<br />

is ±0.5%. Peristaltic dispensing pumps<br />

meet this requirement for fill volumes as small<br />

as 0.5 ml. Below that fill volume, accuracy<br />

can be as good as ±1%.When peristaltic pumps<br />

are integrated into highspeed filling machines,<br />

an automated closed-loop weight-check weight<br />

control system assures that the fill volumes remain<br />

within tight tolerances.<br />

While piston pumps need to cycle through a recovery<br />

or suction phase between each dispensing<br />

stroke, there is no such downtime required<br />

with peristaltic pumps. Consequently,<br />

peristaltic pumps will dispense product immediately<br />

upon demand.<br />

The high-end peristaltic dispensing pumps are<br />

designed to run at high RPM to minimize fill<br />

time. They are equipped with a control system<br />

that provides an immediate response from a filling<br />

machine input signal. Therefore, using a peristaltic<br />

dispensing pump instead of a piston pump<br />

will not slow down the filling process. It is now<br />

commonplace to have high speed filling lines<br />

with peristaltic pumps that fill at rates over 400<br />

bottles per minutes.<br />

Peristaltic pumps have limiting capabilities<br />

for dispensing viscous products. In general, a<br />

product with the viscosity of olive oil can be dispensed<br />

using peristaltic pumps. Slightly higher<br />

viscous products will also work, but may exhibit<br />

potential loss in accuracy and flow rate.<br />

While piston pumps have the capacity to generate<br />

significantly greater pressure for dispensing<br />

more viscous products, high-end peristaltic<br />

dispensing pumps do not. In fact, one of<br />

the underlying principles in achieving accurate<br />

peristaltic dispensing down to the micro fill volumes<br />

is to apply very little pressure on the tubing.<br />

When used for micro filling, peristaltic<br />

pumps are calibrated to provide no more than<br />

approximately 1.3 bar of pressure.<br />

In recent years, biotech companies have embraced<br />

single-use technology, an efficient method for<br />

developing and bringing new drugs to market.<br />

Single-use process components such as small<br />

reactors, filters, mixers and fluid handling bags<br />

have been available for the last few years. The<br />

use of peristaltic pumps and single-use tubing<br />

is also becoming more commonplace as it allows<br />

for simple fluid transfers with no cleaning<br />

and no risk of cross contamination.<br />

New drugs and, in particular, biopharmaceutical<br />

drugs are often designed for a specific<br />

population. Therefore, they are more likely to<br />

be made in relatively small batches than general<br />

application “chemical” drugs. As new<br />

drugs evolve to offer a more specific spectrum<br />

of applications, batch sizes are becoming<br />

smaller and the need for efficient product<br />

changeovers on the filling lines will become<br />

greater.<br />

Many articles about single-use technology<br />

have been written regarding efficient use of the<br />

utility and process equipment for upstream<br />

processing. Benefits of single-use technology<br />

include reduced labor, equipment and energy<br />

costs, increased plant flexibility and faster<br />

turnaround with significantly less risk of contamination.<br />

In addition to R&D, there is now a requirement<br />

for greater reliability and efficiency for the<br />

fill/finish side of mass manufacturing of biological<br />

drugs. Therefore, it is expected that<br />

single-use technology will make its way in<br />

production facilities where accurate peristaltic<br />

dispensing pumps can eventually replace pis-<br />

tons and other mechanical dispensing systems,<br />

potentially allowing for 100% singleuse<br />

drug manufacturing.<br />

Until now, the pharmaceutical industry has<br />

used single-use silicone tubing and fittings<br />

for peristaltic dispensing but has not been<br />

able to provide a single-use filling nozzle. In<br />

an effort to offer a complete solution to singleuse<br />

aseptic filling, Flexicon developed a plastic<br />

nozzle for single-use applications.<br />

It is now possible to purchase single-use ready<br />

to-use tubing set assemblies. These sets include<br />

the required pharmaceutical grade silicone<br />

tubing, connectors and single-use filling nozzles.<br />

The assembly is double bagged and Gamma<br />

irradiated and includes a complete validation<br />

package.<br />

Various single-use tubing set configurations are<br />

available. These may include a sterile filter, septic<br />

quick-connect fittings and a pre-filled product<br />

bag. In most cases, tubing and connectors<br />

ring the product directly from the product<br />

holding tank to the filling nozzle for dispensing<br />

on the filling machine— making the entire<br />

process singleuse.<br />

The pharmaceutical industry is implementing<br />

single-use technology in both the R&D laboratory<br />

and large scale production of injectable<br />

drugs. Peristaltic pumps have benefited from<br />

major technological improvements that have<br />

made them very accurate, fast, and reliable. Today,<br />

single-use peristaltic pumps offer a serious<br />

alternative to piston pumps for the production<br />

of biopharmaceutical drugs.<br />

WATSON-MARLOW<br />

SLI: enter 27911 at www.tim-info.com/pcne


20 May 2009 PRODUCT FOCUS<br />

DSM Composite Resins in Ellesmere<br />

Port, UK, one of Europe’s leading<br />

manufacturers of polyester resins,<br />

replaced some of its ageing<br />

magnetically coupled pumps by<br />

canned motor pumps, resulting<br />

in significant savings.<br />

Reducing maintenance costs and cutting energy<br />

bills has always been high on the agenda for<br />

most manufacturers, but never been more important<br />

than in the present situation of high energy<br />

costs and difficult economic climate. For<br />

applications where pumps are operating 24<br />

hours per day, 7 days per week this cost-saving<br />

‘focus’ is especially important and when investigated<br />

and acted upon, can result in significant<br />

savings. A good example is at DSM Composite<br />

Resins in Ellesmere Port, Cheshire, one of Europe’s<br />

leading manufacturers of polyester resins.<br />

In 2006 DSM Resins made the decision to replace<br />

some of its ageing magnetically coupled<br />

pumps which were operating on Jarytherm<br />

hot oil service, operating at 250ºC. These<br />

hot oil pumps were running 24/7, as part of a<br />

system providing an instant source of heat for<br />

the chemical reactors used for the resin production.<br />

Nikkiso high temperature HX Series canned<br />

motor pumps, supplied by Michael Smith<br />

Engineers, UK, were identified as the<br />

most suitable pumps to replace the existing<br />

magnetically coupled pumps.<br />

Pumps, Valves, Compressors<br />

Canned Motor Pumps<br />

Help Reducing Costs<br />

The pump selected was an HX25D-G5 with a<br />

30kW motor and produced an immediate efficiency<br />

improvement over the original 45kW<br />

magnetically coupled pumps. On the same duty<br />

service the Nikkiso drew 23kW, compared<br />

to the original pumps 45kW, a saving of 40%<br />

on energy operating costs. Commenting on<br />

the pump’s performance, Graham Wilkes,<br />

<strong>Industrial</strong> Engineer for DSM Composite Resins<br />

said, “The pump paid for itself within 12<br />

months due to the energy savings and reduced<br />

maintenance costs, we are very pleased with<br />

the results”.<br />

Two smaller HX24C-C5 pumps with 18.5kW motors<br />

were installed at DSM Resins in July<br />

2008 and once again produced instant efficiency<br />

benefits. These pumps drew 5.88kW and<br />

11.33kW, compared with the original magnetically<br />

coupled pumps which drew 17kW and<br />

18kW respectively.<br />

However, the benefits are not just lower running<br />

costs, HX pumps also ensure savings on<br />

installation. This is because most magnet drive<br />

pumps operating on applications where temperatures<br />

are 250º C require cooling water to<br />

prevent the magnet area from overheating<br />

and the magnet strength weakening. The series<br />

has a ceramic stator which requires no external<br />

cooling. This results in significant savings<br />

on installation as there is no need for<br />

additional pipe work required to bring a water<br />

supply for cooling and an operating cost saving<br />

as there is no need for cooling water.<br />

Other features and benefits of the canned motor<br />

pumps include a one piece rotor/pump<br />

shaft, so any misalignment problems, and the<br />

subsequent maintenance issues associated<br />

with conventional pumps, are eliminated. Also,<br />

the pumps have only 2 journal bearings and<br />

a patented automatic thrust balancing<br />

system which ensures that both the axial and<br />

radial bearing loads are kept to a minimum.<br />

This results in longer bearing life and therefore<br />

reduced maintenance costs.<br />

The canned Motor Pumps can handle capacities<br />

up to 1000m3/hr and maximum discharge<br />

heads up to 210 metres. High speed<br />

and multi-stage options for differential heads<br />

up to 420 metres are available. These compact,<br />

energy-efficient, leak-free pumps are suited<br />

for handling corrosive, aggressive or expensive<br />

liquids which must not come into contact<br />

with the atmosphere.<br />

NIKKISO - KSB<br />

SLI: enter 27863 at www.tim-info.com/pcne


Pumps, Valves, Compressors PRODUCT FOCUS May 2009 21<br />

<strong>Industrial</strong> Heavyweights!<br />

One-Stop Shopping - Butterfl y, Ball and Diaphragm Valves<br />

for demanding applications with corrosive media<br />

■ NEW! Chemical butterfl y valve GEMÜ 490 with TFM liner<br />

DN 40 – 600, excellent resistance, improved design, reduced torques<br />

■<br />

In PVC, PP, PVDF, PFA or SG iron GGG 40.3, lined with PFA, PP or rubber<br />

Plastic diaphragm valves and lined metal diaphragm valves<br />

Solenoid valves, ball valves and butterfl y valves in plastic<br />

■ For any medium and any application – You have the choice with GEMÜ<br />

■ Highly effi cient and reliable actuators<br />

Motorized and pneumatic actuators for linear and quarter turn valves for high cycle duties<br />

and intelligent automation<br />

■ Instrumentation and automation<br />

Programmable switchboxes, positioners and process controllers,<br />

Field bus versions, devices with I/O-Link capability and many other features.<br />

SLI: enter 27365 at www.tim-info.com/pcne<br />

GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG · Fritz-Müller-Str. 6-8 · D-74653 Ingelfi ngen-Criesbach<br />

Phone +49(0)7940/123-0 · Telefax +49(0)7940/123-224 · info@gemue.de · www.gemue.de<br />

ACHEMA<br />

11-15 May 2009<br />

Hall 8,<br />

Booth K48-M52


22 May 2009<br />

Meessseetturm<br />

DECHEMA e.V.<br />

Theodor-Heuss-Allee 25<br />

Torhaus<br />

Entrance<br />

Galleria<br />

CongressCenter (CMF)<br />

6.3<br />

9.2<br />

6.2<br />

Entrance<br />

Torhaus<br />

Press<br />

level 4<br />

9.1<br />

5.1<br />

6.1<br />

9.0<br />

8.0<br />

Festhalle<br />

5.0<br />

6.0<br />

F 2<br />

10.2<br />

F 1<br />

4.2<br />

10.1<br />

Fo.0<br />

U<br />

4.C<br />

4.1<br />

Entrance<br />

City<br />

Hall 1<br />

4.0<br />

Congress Programme<br />

Discussion Corner /<br />

Kongressprogramm<br />

Congress Office<br />

Kongressbüro<br />

3.1<br />

Hall 3/Halle 3<br />

3.0<br />

<strong>Thomas</strong> <strong>Industrial</strong> <strong>Media</strong>,<br />

Departure: excursions, factory tours<br />

Abfahrt Ausflüge, Werksbesichtigungen<br />

Lecture Rooms<br />

Vortragssäle<br />

Special Show<br />

Instrumentation, Control<br />

and Automation Techniques<br />

Pumps, Compressors,<br />

Valves and Fittings<br />

Engineering<br />

General Topic<br />

Environmental Protection<br />

Materials Technology<br />

and Testing<br />

Pharmaceutical, Packaging<br />

and Storage Techniques<br />

Mechanical Processes<br />

Research<br />

and Innovation<br />

Literature, Information,<br />

Learning and Teaching Aids<br />

General Topic<br />

Biotechnological Equipment<br />

Biotechnology<br />

<strong>Industrial</strong> and<br />

Labour Safety<br />

Thermal Processes<br />

Laboratory and<br />

Analytical Techniques


Hall 9.1 Stand A5<br />

Exhibitors from this issue<br />

Meister Strömungstechnik<br />

Hall 4.0, Stand L22<br />

Allweiler<br />

Hall 8.0, Stand R17-R19<br />

Nikkiso - KSB<br />

Hall 8.0, Stand F28-F31<br />

AUMA Riester<br />

Hall 8.0, Stand S41-S45<br />

Pepperl+Fuchs<br />

Hall 10.2, Stand F32-J35<br />

BASF<br />

Hall 8.0, Stand S30-S32/Hall 4.2, Stand J15/Hall 5.1, Stand G18-G20<br />

Piab<br />

Hall 6.0, Stand D5-D6<br />

Rembe Safety + Control<br />

Hall 9.1, Stand K30-N31<br />

Baumer Bourdon-Haenni<br />

Hall 10.1, Stand L32-N33<br />

Russel Finex<br />

Hall 6.0, Stand F4-F6<br />

Biohit<br />

Hall 5.1, Stand D14<br />

Bosch Packaging Technology<br />

Hall 3.1, Stand F2-J11<br />

Sierra Instruments<br />

Hall 10.1, Stand F20-G21<br />

Bronkhorst High-Tech<br />

Hall 10.1, Stand B34-C35<br />

SKF<br />

Hall 10.1, Stand D34-E35<br />

Bürkert<br />

Hall 10.2, Stand K22-N24<br />

Stauffenberg<br />

Hall 9.1, Stand O6<br />

Sweco Europe<br />

Hall 5.0, Stand J25-J28<br />

ebro Electronic<br />

Hall 6.1, Stand D36-E39<br />

Emerson Process Management<br />

Hall 10.2, Stand F3-J6<br />

<strong>Thomas</strong> <strong>Industrial</strong> <strong>Media</strong><br />

Hall 9.1, Stand A5<br />

Finish Thompson<br />

Hall 9.0, Stand G24<br />

Trelleborg<br />

Hall 9.0, Stand A8 and F16-F17<br />

Fox<br />

Hall 9.0, Stand B24A<br />

Gemü Gebr. Müller Apparatebau<br />

Hall 8.0, Stand K48-M52<br />

Vega Grieshaber<br />

Hall 10.1, Stand F32-J35<br />

Watson-Marlow - Bredel Pumps<br />

Hall 8.0, Stand C23-C24/Hall 6.1, Stand G7-H8<br />

Georgin<br />

Hall 10.2, Stand D25<br />

Windmöller & Hölscher<br />

Hall 3.0, Stand K9-L11<br />

Winkler<br />

Hall 4.1, Stand L8-L9<br />

Wolke Inks & Printers<br />

Hall 3.1, Stand F32-F35<br />

Gneuß Kunststofftechnik<br />

Hall 5.0, Stand D4<br />

GSR Ventiltechnik<br />

Hall 9.0, Stand D33-D34<br />

HIMA Paul-Hildebrandt<br />

Hall 10.2, Stand F22-J24<br />

Krohne<br />

Hall 10.2, Stand F25-J31<br />

May 2009 23


24 May 2009 INDUSTRY SPECIAL<br />

From deep seas to productive fields,<br />

polymer products and solutions<br />

help to seal, damp, and protect<br />

in water and food applications.<br />

Here are some examples of<br />

that happening in practice.<br />

Polymer Products Used in<br />

Food and Water Applications<br />

In food production, polymers are at hand from<br />

the very beginning. In the cultivation of fields<br />

for crop growing, tires protect the soil from<br />

unnecessary damage. Once the crops are harvested<br />

and being processed, seals, millions of<br />

which are fitted throughout food processing<br />

systems, help prevent contamination, even in<br />

difficult and demanding dairy production. This<br />

is also the case for high technology hoses,<br />

which are regularly used by wine producers for<br />

all the best vintages. Finally, at the end of the<br />

manufacturing process, trucks equipped with<br />

damping solutions transport these essentials to<br />

consumers worldwide.<br />

With regard to water-related products, rubber is<br />

vital in certain critical applications. Sealing<br />

products are used extensively in the treatment<br />

and transportation of drinking water. They range<br />

from large gaskets used in wastewater treatment<br />

plants and infrastructure, to tiny but equally important<br />

O-Rings found in faucets in homes.<br />

Globally, as the sea levels are rising land protection<br />

is of growing concern. Technology used<br />

for flood defense systems in flood-prone countries,<br />

such as the Netherlands, is being transferred<br />

to projects worldwide. In this type of application,<br />

rubber products help to waterproof foundations<br />

and divert watercourses.<br />

Congested roads are also becoming an increasing<br />

problem, particularly around metropolitan<br />

areas. With little land to divert traffic to, underground<br />

road tunnels are becoming longer and<br />

larger. Gaskets are an integral part of these, preventing<br />

water ingress into underground arteri-<br />

Chemical Industry<br />

al routes.Polymers are also present in a wide range<br />

of seawater applications, such as mooring systems<br />

that protect ships when docking in harbour.<br />

Subsea rubber and polymer products contribute<br />

to the safety of personnel and equipment involved<br />

in oil and gas exploration. One example is VIV<br />

suppression products that protect pipelines<br />

from the destructive vortex-induced vibrations<br />

caused by underwater currents.<br />

Water-filled onions<br />

Collapsible water storage containers can be<br />

supplied in two formats, either pillow shaped or<br />

‘onion’ shaped. The pillow shaped tank is ideal<br />

for water and other aqueous solutions and has<br />

a standard capacity range of 3,700 to 75,000 litres,<br />

while the onion tanks are specifically designed<br />

for storage of potable and non-potable water and<br />

have a capacity range of 3,780 to 11,350 litres.<br />

The onion tank comes in three configurations<br />

– open top, roll top, to keep contamination<br />

out, and zipper top, which prevents both contamination<br />

and evaporation. Both formats are<br />

easily rolled up and transported and can be<br />

custom ordered to specific capacities. Pumps,<br />

hoses and water distribution sets are part of the<br />

solution, making the water containers suitable<br />

for both military authorities and relief agencies.<br />

Processing food<br />

In a processing plant, processing dairy products<br />

or other kinds of food, there are thousands of<br />

lengths of piping and at each juncture there is<br />

a coupling sealed with clamp gaskets and O-Rings.<br />

Ineffective sealing frequently results in production<br />

stops for maintenance, or even unplanned<br />

part replacements. Carefully matching<br />

the seal material to the process media and the<br />

aggressive chemicals used in cleaning regimes<br />

maximizes the life of seals and gaskets. This improves<br />

production efficiency, reducing overall costs<br />

for the manufacturer. From high-performance<br />

EPDM elastomer compounds to advanced materials,<br />

such as Resifluor and the perfluoroelastomer<br />

Isolast, the right sealing material for diverse<br />

operating conditions are available.<br />

Mega gates block the flood<br />

In one of the world’s largest flood prevention<br />

projects, the Delta Project in the Netherlands,<br />

the Maeslantkering storm-surge barrier protects<br />

the land from the powers of the water. The<br />

massive structure consists of two hollow “gates”<br />

with 248 one-meter-high fenders, constructed<br />

by Trelleborg Bakker. Each gate’s arm length<br />

is 237 meters, from ball joint to the tip. When<br />

the gates are folded into their two docks, each


is supported by 14 spring-like elastomeric bearings.<br />

In the event of a storm tide, the docks are<br />

filled with water and the hollow gates start to<br />

float, and turn outwards until they meet. As the<br />

gates’ cavities are filled with water, the gates<br />

sink and seal off the 360-meter-wide water<br />

opening. After the high water has passed, the<br />

water is pumped out and the structure begins<br />

to float again. Once the risk of high water has<br />

passed, the two gates are returned to their<br />

docks. During a huge storm in November of 2007,<br />

the storm-surge barrier was closed for the first<br />

time. The barrier will only be closed in<br />

extremely bad weather – probably once every<br />

ten years.<br />

Plug the water<br />

Impregnated polyester fabrics and ethylene<br />

propylene diene monomer (EPDM) rubber are useful<br />

ingredients when fixing pipes. German company<br />

Trelleborg Epros, a niche leader in the after-market<br />

for pipe systems and sewer rehabil-<br />

INDUSTRY SPECIAL May 2009 25<br />

itation markets, acquired by Trelleborg in<br />

early 2007, specializes in trenchless repairs.<br />

Trelleborg Epros supplies systems and materials<br />

(polyester needle felts, chemical-resistant<br />

fiberglass) and resins to civil contractors to<br />

allow them to repair wastewater and storm<br />

water pipes without digging them up.<br />

The product range of inflatable and flow-through<br />

pipe plugs, such as the DrainStopper system, is<br />

suited for stopping flows and for bypassing<br />

when inspecting pipes for leaks. The plugs’<br />

flexible and gripping material can safely seal any<br />

pipe material and all inflatable plugs can be easily<br />

introduced through manholes. A pressure reducer<br />

is connected to an air source via an air hose,<br />

which is fitted with an actuator. Another air hose<br />

connects the system to the expansion plug, which<br />

is then placed into the pipe and inflated.<br />

TRELLEBORG<br />

SLI: enter 27883 at www.tim-info.com/pcne<br />

Hall 8.0<br />

A Step Beyond<br />

AUMA auf der<br />

ACHEMA 09<br />

Experience the next generation of<br />

electric actuators. Optimise your<br />

processes and benefit from our<br />

innovative products.<br />

AUMA at the ACHEMA 09 –<br />

We look forward to welcoming<br />

you at our booth.<br />

AUMA Riester GmbH & Co. KG<br />

Postfach 1362 | 79373 Müllheim, Germany<br />

Tel. +49 7631 809-0 | www.auma.com<br />

SLI: enter 26963 at www.tim-info.com/pcne


26 May 2009 INDUSTRY SPECIAL<br />

The Evonik Degussa carbon black<br />

factory uses residual gas for steam<br />

and electricity generation in the<br />

thermal afterburning plant. A safety<br />

system was installed to automate<br />

the boiler control and monitoring<br />

system for the gas flare.<br />

Evonik Industries is a global leader in specialty<br />

chemicals, an expert in power generation<br />

from hard coal and renewable energies, and<br />

one of the largest private residential real<br />

estate companies in Germany. Evonik is active<br />

in over 100 countries around the world.<br />

With the product lines Carbon Black, Silica,<br />

Aerosil and Silane, the business division Inorganic<br />

Materials is one of the most important<br />

strategic activities of Evonik Degussa<br />

GmbH. Carbon Black remains the dominant<br />

reinforcing filler for the rubber industry, in particular<br />

for manufacturing tyres, but also with<br />

diverse uses in paint, printer colours, ink<br />

and synthetic materials. With 1.2 million<br />

tonnes, Degussa is the second largest producer<br />

of Carbon Black.<br />

Chemical Industry<br />

Safety System Automates<br />

Burner Control System<br />

The Evonik Degussa GmbH factory near<br />

Cologne, Germany, is the largest European<br />

producer of carbon black. During the production<br />

of carbon black, the residual gas is<br />

used for steam and electricity generation in<br />

the thermal afterburning plant. If a boiler stops<br />

functioning, however, a gas flare system<br />

starts operation to burn the residual gas. As<br />

part of renovation work, the boiler control<br />

and monitoring system for the gas flare<br />

was automated using the safety system HI-<br />

Max.<br />

The solution included two HIMax-CPUs, two<br />

system bus modules, two digital output and<br />

three input modules, one analogue input<br />

module and one communications module for<br />

PROFIBUS-DP. The function of these components<br />

is to maintain overall correct operation,<br />

particularly in regard to the pre-ventilation<br />

period, flare monitoring and correct<br />

operating parameters.<br />

Lutz Dross, PLT planning and process engineer<br />

for the IM business division Evonik<br />

Degussa GmbH, values the possibility to<br />

conduct online tests with HIMax as well as<br />

the diverse programming possibilities. “The<br />

high level of flexibility guarantees low<br />

costs during the entire lifecycle of HIMax.<br />

Another advantage is that the safety system<br />

can be easily expanded without interrupting<br />

operations.” The new safety control<br />

system from HIMA guarantees the highest<br />

possible level of availability, Dross added.<br />

Whether during a hardware or software<br />

upgrade or routine maintenance work,<br />

HIMax doesn’t have to be turned off – the<br />

plant continues to operate.<br />

The safety system HIMax for large and medium-sized<br />

applications allows for uninterrupted<br />

operation of processing plant over its<br />

entire lifecycle. It is based on the Nonstop<br />

XMR technology that combines diagnostic-based<br />

SIL 3 safety integrity with a scalable<br />

fault-tolerant architecture that eliminates<br />

false trips and provides for unlimited<br />

changes, modifications, expansions, upgrades<br />

and regulatory proof testing without<br />

taking the plant off-line.<br />

The HIMax system is integrated into the<br />

Foxboro processing control system (DCS)<br />

via PROFIBUS-DP. Because of the open standards<br />

protocol, HIMax can be integrated<br />

with all leading DCS. In this way, controls can<br />

be combined with the best-suited DCS.<br />

The software tool SILworX proved to be another<br />

major benefit, said Lutz Dross, because<br />

of the fully integrated configuration, programme<br />

and diagnosis environment for HIMax.<br />

The modern user interface contributed to a reduction<br />

in mistakes and accelerated planning<br />

and implementation. “HIMax is exceptionally<br />

user-friendly. The software tool SILworX has<br />

a fully-graphic drop and drag programming<br />

function. That simplified engineering enormously,”<br />

said the management technology specialist<br />

from Evonik Degussa.<br />

HIMA PAUL-HILDEBRANDT<br />

SLI: enter 27857 at www.tim-info.com/pcne


The large German discount supermarket chain<br />

ALDI SÜD is now offering its German customers<br />

shopping bags made of the biodegradable plastic<br />

Ecovio. These bags are manufactured for<br />

ALDI by the Victor Güthoff & Partner Group, headquartered<br />

in Kerpen, Germany.<br />

The plastic Ecovio consists of Ecoflex and of polylactic<br />

acid (PLA), which is obtained from corn, a renewable<br />

raw material. Chemically speaking,<br />

Ecoflex is a petro-chemical-based polyester. And<br />

yet, thanks to its special molecular structure, it can<br />

be digested by microbes under precisely defined<br />

conditions: it is completely biodegradable according<br />

to European standard EN 13432. Whereas<br />

Ecoflex makes the bag flexible, tear-resistant,<br />

waterproof and suitable for printing – giving it the<br />

properties of a classic plastic – the stiff PLA contributes<br />

the renewable raw material. The combination<br />

of Ecovio and Ecoflex allows film manufacturers<br />

such as Victor to produce plastic<br />

bags and other film products with tailor-made<br />

Your specialist for:<br />

■ Plastic/Metal Knobs ■ Handles ■ Precision Switches and Switch<br />

Jacks ■ FEL Front Panel System and Standard Panel Components<br />

for THT and SMT Application ■ LEDs, Opto Electronic Components<br />

■ Light Guide Systems ■ Illuminated Handles ■ Light-Reflex and<br />

Capacitive Switches ■ M-Pipes, Light Guides with Integrated LEDs<br />

■ 2-Component Handles<br />

Novelties: ■ M-TUBE LED Light System ■ Key Cap ■ Sensors<br />

www.mentor-components.com<br />

MENTOR GmbH & Co. Präzisions-Bauteile KG<br />

P.O. Box 3255 · 40682 Erkrath, Germany · Tel. +49 211 2 00 02-0 · Fax +49 211 2 00 02-41 · info@mentor-components.com<br />

SLI: enter 26811 at www.tim-info.com/pcne<br />

Chemical Industry INDUSTRY SPECIAL May 2009 27<br />

Shopping Bags Made of<br />

Biodegradable Plastic<br />

properties – a higher percentage of Ecoflex<br />

renders the film more flexible whereas a higher<br />

percentage of Ecovio renders it stiffer. Thus,<br />

Ecoflex makes it possible for renewable raw materials<br />

like PLA to now be employed in high-performance<br />

consumer products.<br />

Biodegradable shopping bags offer customers an<br />

additional advantage: they not only are strong<br />

enough to be used multiple times as a shopping<br />

bag, but at the end of their days, they can also<br />

serve as a bag for collecting and disposing of organic<br />

kitchen garbage – in most of the German<br />

communities this is already permitted.<br />

“The two plastics Ecoflex and Ecovio have been<br />

developed primarily for products such as shopping<br />

bags and bags for organic waste, which are<br />

transformed into valuable compost – together<br />

with the bio-waste – in an industrial composting<br />

facility”, explains Andreas Künkel, in charge<br />

of the development of biodegradable plastics<br />

at BASF. In these applications, the biodegradability<br />

of the materials constitutes a benefit for<br />

customers and environment.<br />

BASF<br />

SLI: enter 27903 at www.tim-info.com/pcne


28 May 2009 INDUSTRY SPECIAL<br />

A Large Area Rotary Filtration<br />

System replaces a duplex candle<br />

filter in a line for the production of<br />

PVC film (interlayer for laminated<br />

glass), eliminating the process<br />

disturbances from filter changes<br />

while saving money.<br />

Chemical Industry<br />

Rotary Filtration Systems<br />

for Large Scale Applications<br />

A process-constant Filtration System type RSFgenius<br />

330 will replace a duplex candle filter in a<br />

line for the production of PVC film (interlayer<br />

for laminated glass). The operation of the RSFgenius<br />

330 will ensure that the process disturbances,<br />

which had hitherto been a problem when<br />

switching from one candle filter to the other prior<br />

to filter changes are completely avoided, in addition<br />

to the costs for dismantling, handling and<br />

cleaning the candle filter elements. An additional<br />

important advantage in the processing of this<br />

high viscosity material is the absolute pressure<br />

stability ensured by the Rotary Filtration System<br />

which guarantees a constant film thickness.<br />

The RSFgenius, with its Rotary Filtration System<br />

in this case is characterised by a filtration area<br />

of 1,900cm 2 and operates with a filtration fineness<br />

of 56μm. The throughput rate is 2,800kg/h.<br />

When increasing the number of recycling lines<br />

from 3 to 4, a major French manufacture of recycled<br />

PET bottle grade chip/pellets from post<br />

consumer PET bottles once more selected the<br />

Rotary Filtration System. The RSFgenius Filtration<br />

Systems already in operation at this customer<br />

have a filtration area of 590cm 2 and operate with<br />

a throughput rate of 1,500kg/h and a filtration<br />

fineness of 56 microns.<br />

The trademark characteristic of the Rotary Filtration<br />

Systems is the disc, which rotates between<br />

the inlet and outlet blocks and which is equipped<br />

with a set of filter elements, located in a ring<br />

pattern around the disc. The polymer melt flows<br />

across the filter surface, leaving the contamination<br />

on the filter elements. As a result, the<br />

pressure differential increases slightly and the<br />

control system reacts immediately, rotating<br />

the disc by approximately 1° angle at a time. In<br />

this way, contaminated filter area is indexed out<br />

of the melt channel and clean area is introduced<br />

at the same time.<br />

Additionally, the RSFgenius is equipped with an<br />

integrated high pressure sequential self cleaning<br />

system which ensures complete cleaning of<br />

the filter elements. Depending on the filtration<br />

fineness, the filter elements can be used as<br />

many as 400 times, which in this case results<br />

in an interval between filter element changes<br />

(which can be carried out without disturbing the<br />

process) of approximately 2 months.<br />

All the Gneuss Melt Filtration Systems operate<br />

“gneussconstant” – in other words, they operate<br />

fully automatically and ensure pressure<br />

and process constant production at all times. They<br />

are available in a range of different model sizes<br />

with filtration areas from 25cm 2 up to 17,400cm 2<br />

for throughput rates from 190 to 32,000 kg/h.<br />

A manufacturer of cable compounds for high Voltage<br />

cables (> 2,500kV) from LDPE and which are<br />

cross linked in a second processing step needed<br />

a flow optimised melt channel design and extremely<br />

fine filtration (20μm). The manufacturer<br />

selected the KSF Melt Filtration System,<br />

designed so that the screws of the twin screw<br />

extruder reached to within 10mm of the filter<br />

elements. In this way, the high viscosity<br />

material is agitated through the inlet block,<br />

the residence time spectrum is kept narrow,<br />

the polymer flow is fast and streamlined.<br />

GNEUß KUNSTSTOFFTECHNIK<br />

SLI: enter 27798 at www.tim-info.com/pcne


CORROSION RESISTANT ROD ENDS<br />

withstand food and chemical media<br />

The Elges range<br />

of rod ends is<br />

made from<br />

alloy steel and<br />

comprises a<br />

housing with internal<br />

or external<br />

threaded<br />

stem (spigot) and a maintenance-free spherical<br />

plain bearing. The housing and stem conform to<br />

DIN ISO 12 240-4, dimension series K and have<br />

a radial spherical plain bearing and a right or left<br />

hand internal or external thread. The rod ends<br />

are suitable for pneumatic systems, control<br />

and automation equipment, as well as machines<br />

destined for the food and beverage processing<br />

sector, abattoirs, chemicals, medical, aerospace<br />

and shipbuilding. The rod ends are available<br />

with diameters from 5 to 30mm. The housing<br />

and stem are manufactured to DIN 13 and<br />

the bore tolerance of the spherical plain bearings<br />

is H7. The rod ends can be used in operating<br />

temperatures from –10 to 80°C. Typically,<br />

X105CrMo17 (material number 1.4125) corrosion-resistant<br />

steel is used for the inner ring of<br />

the rod ends. For the outer ring and housing, either<br />

X8CrNiS18-9 (material number 1.4305) or<br />

X5CrNi18-10 (material number 1.4301) is used.<br />

Schaeffler<br />

SLI: enter 27812 at www.tim-info.com/pcne<br />

Chemical Industry INDUSTRY SPECIAL May 2009 29<br />

FILTER TIPS<br />

provide a barrier between pipette and sample<br />

This line of Filter Tips is designed<br />

for scientists concerned<br />

about sample integrity,<br />

safety, and minimizing<br />

contamination<br />

risks. They can be used in<br />

applications including<br />

molecular biology, microbiology<br />

and cell culture,<br />

as well as radioactive<br />

work. They fulfill high quality and purity demands<br />

and provide an effective barrier between the<br />

pipette and the sample. The higher filter positioning<br />

in the new models prevents the liquid<br />

sample from touching the filter- enabling safer<br />

pipetting in reverse and multi-dispensing<br />

modes. The Filter Tips cover the volume range<br />

from 0.1-1200μl. They are packed in colorcoded<br />

single tray boxes. The tips reduce the risk<br />

of contamination to the pipette; liquid samples<br />

and the operator. The tips are made of virgin<br />

polypropylene and the filters are polyethylene.<br />

Single tray packages, wrapped in air-tight<br />

plastic are electron beam sterilized with the tip<br />

size ID printed on the sterilization indicator. They<br />

are certified as DNase, RNase and endotoxin free.<br />

They are CE/IVD certified and are manufactured<br />

according to ISO 9001, ISO 14001 & ISO 13485.<br />

Biohit<br />

SLI: enter 27816 at www.tim-info.com/pcne<br />

PROCESS PRODUCTS<br />

Compression fittings made of stainless<br />

steel with highest requirements<br />

for quality and safety<br />

HI-CLEAN<br />

Pipe and tube supports<br />

made of plastics for clean rooms<br />

Walter Stauffenberg GmbH & Co. KG<br />

Im Ehrenfeld 4 58791 Werdohl<br />

Tel.: (0 23 92) 9 16 - 0 Fax: 25 05<br />

E-Mail: sales@stauff.com<br />

OPTICAL OXYGEN SENSOR<br />

for biotech applications<br />

HI-CLEAN<br />

ASME-BPE compliant pipe and tube<br />

supports made of stainless steel for<br />

clean rooms<br />

PIPETITE<br />

Flexible and self sealing wall boots<br />

for pipes and other industrial lines<br />

Visit us:<br />

11. - 15.05.2009 Frankfurt / Germany Hall 9.1 / Stand O6<br />

SLI: enter 27271 at www.tim-info.com/pcne SLI: enter 26768 at www.tim-info.com/pcne<br />

InPro 6880i/6870i optical<br />

oxygen sensors are tailored<br />

for the biopharmaceutical<br />

industry, where safety of<br />

the process control is the<br />

main focus of interest. During<br />

preparation and maintenance<br />

operations of an<br />

oxygen sensor for the next<br />

batch, all procedures must be carefully executed<br />

and well documented in order to avoid possible<br />

handling errors. With the ISM technology,<br />

all sensor data, including calibration, are stored<br />

in the sensor itself. Maintenance and calibration<br />

can be performed in the lab under controlled and<br />

clean conditions; installation in the process<br />

can be done in minutes. If calibration with the<br />

sensor installed is required, the M400 transmitter<br />

offers easy and fast routines for air or process<br />

calibration. After connecting the sensor to the<br />

transmitter, all relevant data are automatically<br />

transferred to the transmitter and an oxygen reading<br />

is available in less then a minute. System<br />

status and the quality of the sensing element,<br />

the OptoCap, are monitored in real-time. The exchangeable<br />

OptoCap is FDA compliant. Material<br />

and position of the O-Ring (USP Class VI) minimize<br />

the risk of cross-contamination.<br />

Mettler Toledo<br />

SLI: enter 27790 at www.tim-info.com/pcne<br />

For further information,<br />

please check our website at<br />

www.stauff.com


30 May 2009<br />

Plant monitoring and control is<br />

particularly vital in the continuous<br />

process industries, where multiple<br />

machines must act in harmony<br />

day after day. With most machines<br />

driven through a rotating shaft,<br />

torque monitoring can identify<br />

problems before they become critical.<br />

Say ‘process control’ and most people automatically<br />

think of monster-sized central computers running<br />

barely-fathomable SCADA software in a control<br />

room that would not be out of place at Cape<br />

Canaveral. But out on the plant floor, there may be<br />

literally thousands of simple sensors and switches,<br />

collecting data and feeding it back to the Beamoth.<br />

These sensors are tracking every little change in the<br />

plant’s operating parameters, indicative of either the<br />

state of the materials being worked or of the state<br />

of the machinery itself. For instance an increase in<br />

torque on a mixer drive may suggest that a mixture<br />

within is thicken up as expected, or alternatively that<br />

a seal or bearing is sticking and may soon fail al-<br />

Torqing Sense for<br />

Process Plant Control<br />

together: either way this is vital information for the<br />

central computer to capture and assess.<br />

Ultimately, process engineers want to transform material<br />

from one state to another, and to monitor variables<br />

indicative of the various stages of the process.<br />

Some parameters can be measured directly and simple<br />

– temperature for example. Others are more difficult<br />

to measure, so an often-used technique is to<br />

measure a related parameter (typically one related<br />

to the plant or machinery rather then the<br />

process material) and interpolate from this.<br />

Significantly many types of process plant – mixers,<br />

pumps, conveyors - are motor driven, and measuring<br />

the motor output characteristics will often provide<br />

process information. For instance, the torque<br />

of the motor could suggest the quantity, speed or<br />

viscosity of the process material being worked.<br />

Obviously, measuring the processing is the primary<br />

concern of the production engineers, but<br />

torque measurement has a second, equally important<br />

function. Because you are actually measuring<br />

plant performance, you get to see how the machinery<br />

is holding up. Knowing what to look for will give<br />

you early warning of breakdowns, allowing you to<br />

schedule pre-emptive maintenance. For a continuous<br />

process where downtime can cost thousands<br />

of Euros an hour in lost production, this can be critical<br />

- ultimately the difference between healthy profit<br />

and catastrophic loss.<br />

This all sound very useful, and actually measuring<br />

torque can be very simple. Not so long ago torque<br />

sensors required a fairly complicated and fragile array<br />

of slip rings connected to the rotating drive shaft<br />

of the machine under test. TorqSense provides a noncontact<br />

means for taking the readings. In use, a couple<br />

of simple pads are glued to the side of the driveshaft<br />

and a TorqSense unit mounted close by. The<br />

device then starts monitoring torque, and feeding<br />

it as a data signal to the SCADA control system.<br />

Principles<br />

The pads are in fact tiny little piezoelectric combs<br />

encased in plastic. The combs are designed to<br />

open or close under the torque effect of their rotational<br />

speed on the drive shaft. The greater the torque,<br />

the more the distortion.<br />

The TorqSense unit emits a low powered radio frequency<br />

signal towards the combs, which reflect it<br />

back. The reflected signal comes back at a changed<br />

frequency, the change being proportional to the distortion<br />

of the combs, and thus to the torque in the<br />

drive shaft.<br />

The physical phenomenon which deforms the<br />

combs is called the Surface Affect Wave (SAW), a<br />

property first noted in 1885 by gentleman-scientist<br />

Lord John William Strutt Rayleigh. He postulated<br />

many possible used for SAWs, but was unable<br />

to realise practical use for any of his theories. It was<br />

not until the 1920s that they were shown to be generated<br />

by the moving edges of earthquakes and avalanches,<br />

the recording of which using low frequency<br />

vibration monitors formed the basis of modern<br />

seismology and volcanology.<br />

By mid century scientists were creating SAWs in laboratories<br />

and developing new ideas for their use. As<br />

the century closed Sensor Technology Ltd were using<br />

the phenomenon to develop a new method of<br />

torque monitoring, the non-contact nature of which<br />

promised to be very attractive to working engineers.<br />

Testing pumps<br />

Charles Austen Pumps (CAP) has recently upgraded<br />

its test facilities with Surface Acoustic Wave (SAW)<br />

equipment from Sensor Technology. Charles Austen<br />

Pumps manufactures pumps individually designed<br />

to meet specific customer requirements that cannot<br />

be satisfied by off-the-shelf units. Much of its<br />

work comes down to optimising drive dynamics to<br />

produce the desired characteristics, be it a smooth<br />

flow in a critical medical situation, ultra low noise<br />

for pumps in home and office installations, or the<br />

guaranteed extra long life of pump in inaccessible<br />

locations.<br />

The cyclic nature typical in many pumps’ operation<br />

tends to induce torsional oscillations in the drive<br />

shaft, which can have a significant adverse effect


on performance if unchecked. CAP has recently built<br />

a new test station based on Sensor Technology’s SAW<br />

sensors, and it is proving it’s worth time and time<br />

again. Advantages of SAW techniques include a broader<br />

signal bandwidth than other analogue based technologies<br />

and elimination of electronic interference.<br />

As CAP found, it often also proves far lower<br />

cost, simpler to use, is more reliable and has a wider<br />

operating range than contact alternatives.<br />

Currying flavour<br />

Real time process control for food manufacture involves<br />

characterising the flow and mixability of highly<br />

non-Newtonian fluids. TorqSense transducers<br />

monitoring the constantly changing flow characteristics<br />

of materials as diverse as tomato ketchup,<br />

chocolate, pasta sauce and chicken tikka massala<br />

as they are mixed.<br />

Many manufactured food is presented in a sauce<br />

or as what physicists could describe as a neo-liquid<br />

and can be produced in a process-type environment.<br />

But to date real time control has been virtually<br />

impossible due to the non-uniform nature of the<br />

food, which may contain particulates, fibres, vegetables,<br />

meat, nuts, raisins, biscuits etc.<br />

To achieve real time control the TorqSense has to<br />

be able to detect the changes with sufficient sensitivity,<br />

yet be robust enough for regular washdowns<br />

and general industrial abuse. Of course it must<br />

Get into the flow<br />

Our partners:<br />

A Schmachtl office.linz@schmachtl.at<br />

A STASTO office@stasto.com<br />

B Intercontrol info@intercontrol.be<br />

CH KFG-Level info@ksr-kubler.com<br />

CZ BIBUS bibus@bibus.cz<br />

CZ Hennlich hennlich@hennlich.cz<br />

DK Zimsen tz@zimsen.dk<br />

E Intertronic Int. compras@intertronic.es<br />

FIN Kübler Suomi kubler@kubler.fi<br />

H Hennlich hennlich@hennlich.hu<br />

I GREIN fede@grein.it<br />

N Flow-Teknikk mail@flow.no<br />

NL Intercontrol info@intercontrol.biz<br />

PL TR Automatyka biuro@trautomatyka.pl<br />

S Kübler Svenska info@kubler.se<br />

SK Hennlich technik@hennlich.sk<br />

SLO HENNLICH info@hennlich.si<br />

Achema<br />

Hall 4.0 · Booth L22<br />

Meister Strömungstechnik · Im Gewerbegebiet 2 · 63831 Wiesen/Germany<br />

Phone +49 60 96 /97 20-0 · vertrieb@meister-flow.com · www.meister-flow.com<br />

not compromise hygiene standards and regimes either.<br />

The device has been found to meet all these<br />

requirements and is being used in by a number of<br />

food processors.<br />

Often the key requirement is to mix sufficiently to<br />

achieve a uniform dish, but not to waste time and<br />

energy by over-mixing. This can be done by monitoring<br />

the torque on the mixer’s shaft, as it will move<br />

to a steady state (within the characteristics of the<br />

given recipe) once fluid uniformity is achieved.<br />

Mixing<br />

A TorqSense is helping analyse recipes’ mixing<br />

properties in a project that could slash development<br />

costs in the food and plastics industry and help nanotechnology<br />

advance in the pharmaceuticals world.<br />

Research and development is being carried out at<br />

the University of Bradford to develop a miniature<br />

mixer (5-25 grams batch) that incorporates a set of<br />

integral instruments to monitor the properties of materials<br />

as they are being mixed. The instruments work<br />

in real time during the mixing process and their output<br />

is captured to a PC for analysis. Software is being<br />

written so that the analysis can be performed<br />

simultaneously with the mixing and perhaps even<br />

used to interactively control the mixer itself.<br />

One of the key parameters to be measured is the<br />

torque of the mixing element, as this will become<br />

SLI: enter 27382 at www.tim-info.com/pcne SLI: enter 27099 at www.tim-info.com/pcne<br />

May 2009 31<br />

constant once mixing is complete. This is measured<br />

by a TorqSense non-contact sensor that offers the<br />

development team the great advantage of not requiring<br />

complex and delicate slip rings, making the<br />

mixer easier to build (and rebuild between trials) and<br />

far more robust in operation.<br />

The Mini Mixer development and validation is the<br />

result of a three year EPSRC sponsored programme<br />

of research. The results of this research are expected<br />

to have a major impact on formulation of<br />

viscous mixes and scale-up of extruders. Traditionally<br />

recipes for formulating say specific coloured plastics<br />

for consumer products are developed in 25 to<br />

50kg batches, mixed in an industrial scale twin screw<br />

compounder. Several batches may be required before<br />

the recipe is finalised, so the cost and time involved<br />

can be considerable.<br />

Clearly the development of a smaller mixer is advantageous,<br />

but the laboratory device must be<br />

able to duplicate mixing in the larger scale and guide<br />

design and operation of large machines and that is<br />

what the research programme has achieved. The fact<br />

that the technology will transfer to the plastic industry<br />

and other soft solid sectors means it is likely<br />

to rapidly recoup development costs.<br />

SENSOR TECHNOLOGY<br />

SLI: enter 27875 at www.tim-info.com/pcne


32 May 2009<br />

Compressed tablets are still the<br />

most popular dosage form for<br />

pharmaceuticals. Over 75% of<br />

pharmaceutical products are sold in<br />

solid dosage form. Strong growth is<br />

predicted for compressed tablets<br />

due to the nutraceuticals market,<br />

especially in the USA.<br />

Tablet Production & Handling<br />

with Vacuum Technologies<br />

The potential for growth in tablet manufacturing is<br />

high. However, several challenges and trends are<br />

threatening the profit potential. Today, pharmaceutical<br />

manufacturers are challenged to evolve their<br />

production processes in order to survive and excel<br />

in an increasingly competitive industry. While<br />

product quality has always been of paramount<br />

importance, strenuous economic times and continually<br />

inflating drug prices are heightening consumer<br />

demand for lower-priced prescriptions. Tablet manufacturers<br />

are more than ever seeking new ways<br />

to automate their lines to speed and streamline production,<br />

and vacuum conveying technologies are<br />

providing an answer.<br />

By automating the conveying process, vacuum<br />

technologies can improve productivity and enhance<br />

quality. In addition, selecting a vacuum<br />

technology that is maintenance-free and energy-efficient<br />

can provide further benefits to tablet manufacturers.<br />

These benefits allow companies to cut<br />

costs and meet challenging consumer demands for<br />

quality pharmaceuticals and lower prices.<br />

Offering a safer environment<br />

In general, reducing manual labor through automated<br />

vacuum conveying can improve working conditions<br />

by reducing heavy lifting. In addition, American<br />

manufacturers must abide by Safety, Health<br />

and Environment (SHE) regulations enforced by the<br />

US Department of Occupational Safety & Health Administration.<br />

In Europe, the European Foundation<br />

for the Improvement of Living and Working conditions<br />

(EUROFOUNDA) oversees the improvement<br />

of industrial working conditions.<br />

Heat, dust and noise are all pollutants in the<br />

working environment that detract from worker safety<br />

and the stringent sanitation demands for pharmaceutical<br />

and chemical production. Tablet manufacturers<br />

can greatly reduce manual labor and<br />

diminish exposure to environmental irritants with<br />

the installation of a vacuum conveying solution<br />

that moves dry powder products through dedicated<br />

pipe systems. These systems fully contain<br />

the powders to minimize dust and also generate<br />

less heat.<br />

To ensure the highest standard of worker safety, the<br />

conveyors should also have few moving parts,<br />

and be easily assembled and disassembled to reduce<br />

worker strain.<br />

In one example of the benefits of vacuum conveying<br />

technology, Surepharm Services Ltd, a UK contract<br />

manufacturer specializing in tablet production,<br />

improved its working environment by reducing<br />

the amount of heavy lifting and manual labor performed<br />

by its employees. The company replaced<br />

its manual loading operation with three C-Series<br />

vacuum conveyors to transfer powder products<br />

to blending and tableting machinery. As a result,<br />

the company saved up to 30 hours of labor per week<br />

and reduced dust significantly. Additionally, the lightweight<br />

conveying equipment quickened the cleaning<br />

process by reducing the physical demand on<br />

the workers.<br />

Increasing uptime<br />

Given the 24/7 production runs in pharmaceutical<br />

manufacturing, automation technologies must be<br />

highly reliably. In today’s competitive pharmaceutical<br />

industry, there is simply no time for line<br />

stoppages or ongoing maintenance. Additionally,<br />

changeover can add significant costs and downtime<br />

to the production process. A vacuum conveyor<br />

must easily facilitate changeover or risk negating<br />

the gains realized through automation.<br />

Simple solutions can effectively combat the erosion<br />

of productivity caused by line stoppages,<br />

maintenance or changeover. Vacuum technologies<br />

with few moving parts are not only safer; they are<br />

maintenance-free and can reduce downtime. Conveyors<br />

that are easily handled by workers are<br />

more quickly assembled and disassembled, reducing<br />

the time it takes for equipment adjustments<br />

between batches and during cleanings.<br />

Machines containing fewer components also help<br />

minimize part mix-ups and help to prevent line stoppages.<br />

In one instance, Rottendorf Pharma, one of Germany’s<br />

leading contract manufacturers of solid dosage<br />

form drugs, replaced its traditional vacuum conveying<br />

machines with C2100-64 compact compressedair<br />

conveyors. The PIAB conveyors were lighter in<br />

weight and contained fewer parts. This made them<br />

easier and faster for workers to assemble and disassemble.<br />

As a result, the company reduced cleaning<br />

time from 7,200 hours to 6,600 hours yearly.<br />

The hours saved from cleaning were recycled back<br />

into manufacturing time and Rottendorf has improved<br />

productivity by 15 million tablets since the installation.<br />

Cost-effective, easy cleaning<br />

In addition to aiming to reduce changeover time,<br />

tablet manufacturers must also prevent cross-contamination<br />

of the product. A vacuum conveyor<br />

that is easily disassembled for quick clean-up is a<br />

cost-efficient way of averting cross contamination.<br />

In Rottendorf’s example, the light-weight<br />

conveyors that replaced its older equipment offered


a way to quicken the cleaning process and maximize<br />

uptime.<br />

Clean-in-place systems are effective but costly<br />

solutions to meeting strict FDA regulations on<br />

sanitary conditions. Additionally, the systems can<br />

add unnecessary bulk to existing equipment.<br />

Energy-saving solutions<br />

As energy costs soar, the reduction of energy usage<br />

is a strategic step to trim expenses from pharmaceutical<br />

manufacturing operations. In addition,<br />

reducing energy consumption is good for sustainability<br />

efforts. However, in terms of energy consumption,<br />

not all vacuum solutions are created equal.<br />

Conveying systems powered by decentralized<br />

vacuum technologies are more energy-efficient than<br />

their centralized counterparts. While a centralized<br />

vacuum system puts more distance between<br />

the source of the power and the point of use, a decentralized<br />

vacuum system uses multistage ejector<br />

technology to apply the vacuum where needed.<br />

This way, no additional energy is expended to<br />

compensate for the extra distance.<br />

Optimizing automation<br />

Automating the tablet-handling process affords many<br />

advantages and conveniences to pharmaceutical<br />

manufacturers, including increased productivity and<br />

reduced staff injury. However, poorly designed automated<br />

conveying systems can cause segregation<br />

and tablet breakage. Simple precautions can be taken<br />

to avoid incurring the costs of product waste as<br />

a result of either event.<br />

Preventing Segregation<br />

Particle separation prior to tablet compression,<br />

known as segregation, can threaten the integrity<br />

of drug dosages and jeopardize the uniformity of<br />

a batch. Segregation can occur during tablet production<br />

as a result of gravity and particle characteristics<br />

as well as due to external factors such as<br />

air flow and vibration.<br />

May 2009 33<br />

When implementing vacuum conveying, segregation<br />

risk can be significantly reduced by handling<br />

the material at a controlled speed to ensure that<br />

the materials stay blended.<br />

Preventing Tablet Breakage<br />

Tablets can also break due to exposure to friction<br />

and shock during or after the manufacturing<br />

process. A broken tablet is susceptible to contamination,<br />

rendering it useless. As a result, product<br />

waste can accumulate and cause production<br />

delays.<br />

To prevent breakage, tablet manufacturers can<br />

employ an accommodating vacuum conveying<br />

system. To start, the conveying system should<br />

have an adaptable feed rate to enable the system<br />

to be sped up or slowed depending on the size or<br />

volume of the tablets being handled.<br />

Also, the vacuum conveyor’s tubing and piping specifications<br />

along with couplings can be specifically<br />

designed to reduce speed and avoid product damage.<br />

The tubing and piping should have soft curves<br />

to avoid tablet breakage.<br />

Conclusion<br />

Vacuum automation technologies can play a key<br />

roll in streamlining tablet production. By taking the<br />

right precautions in installing a reliable, efficient<br />

vacuum conveying system, manufacturers can increase<br />

their productivity, reduce energy usage<br />

and improve their work environments. As companies<br />

harness vacuum technology to advance tablet<br />

production, more efficient conveying systems will<br />

translate into cost savings, helping tablet manufacturers<br />

stay competitive by enabling them to produce<br />

more affordable prescriptions.<br />

By Häla El Sheemy Washbrook, Business Unit<br />

Manager Pharma & Chem, PIAB<br />

PIAB<br />

SLI: enter 27815 at www.tim-info.com/pcne<br />

TRACKING &<br />

TRACING<br />

Intelligent coding solutions from Wolke<br />

ACHEMA, Hall 3.1/F32-35<br />

EURO ID, Booth C 7A<br />

Serialization<br />

Automatic fields<br />

(e.g. date, time etc.)<br />

Various codes<br />

(e.g. EAN, Data-Matrix)<br />

SLI: enter 27009 at www.tim-info.com/pcne<br />

www.wolke.com<br />

WOLKE Inks & Printers GmbH<br />

Ostbahnstraße 116<br />

91217 Hersbruck Germany<br />

Tel. +49 9151- 8161- 0<br />

Fax - 8161- 57 info@wolke.com


34 May 2009<br />

Godiva Chocolatier in Brussels,<br />

Belgium meet the highest quality<br />

standards with the installation of<br />

Self-Cleaning Filters and Compact<br />

Sieves, delivering maximum<br />

customer satisfaction everytime.<br />

Filters and Sieves for the<br />

Highest Quality Chocolate<br />

Godiva Chocolatier was founded 80 years ago<br />

in Brussels, Belgium and supplies its range of<br />

high quality "luxury" chocolates in over 80<br />

countries. Using only the finest chocolate and<br />

highest quality ingredients, Godiva chocolates<br />

are found in some of the most prestigious<br />

stores around the world, from Wanamaker's in<br />

Philadelphia, Pennsylvania to Nihonbashi Mitsukoshi<br />

Department Store in central Tokyo.<br />

Godiva uses both enrobing and shell moulding<br />

processes to manufacture the various sizes and<br />

shapes of chocolates, the latter being extensively<br />

used in Europe. As with many chocolate<br />

processes, foil is commonly used to wrap chocolate<br />

because of its decorative/luxury appearance<br />

and ease of wrapping varying shapes. However,<br />

this complicates rework processes, since<br />

the foil must be removed beforehand and as a<br />

result it is not uncommon for pieces of foil to<br />

contaminate the chocolate.<br />

To prevent this or any other foreign body contamination<br />

from entering the moulding process,<br />

Godiva has relied upon two large sieving units<br />

installed just before the chocolate depositors,<br />

which is the last stage of the process before chocolate<br />

is poured into the moulds. Although they<br />

have been reasonably effective, metal detectors<br />

would frequently alarm due to small fragments<br />

passing through the units causing costly rework.<br />

With the popularity of their chocolate increasing<br />

and with growing demand, Godiva recognized<br />

the need to review its process with the aim of<br />

gaining zero tolerance on contamination while<br />

improving production efficiency.<br />

At the early stages of the project, Godiva identified<br />

two areas where foreign bodies could<br />

enter the chocolate. Firstly, from the rework<br />

chocolate as it is returned to the storage tanks<br />

where it is mixed with virgin chocolate. Secondly,<br />

due to the nature of chocolate processing, contamination<br />

can be introduced due to large<br />

amounts of pipework and pumps being used to<br />

transport chocolate throughout the process.<br />

As a starting point, Godiva made contact with<br />

their chocolate supplier since every batch of virgin<br />

chocolate entering the Godiva plant is certified<br />

as contamination free. This resulted in a<br />

visit to one of the plants to learn how it was<br />

achieved. The systems used were fully enclosed<br />

self-cleaning filtration units supplied by Russell<br />

Finex. Peter Van Ingelghem, Engineering and Maintenance<br />

Manager of Godiva explains, “As soon<br />

as we saw the installation it was clear that<br />

this was the solution we had been looking for.”<br />

He added “With these systems installed there<br />

have been no reports of contaminated chocolate<br />

being delivered to our factory”.<br />

Without hesitation, Godiva made contact with<br />

the Russell Finex sales office in Mechelen, Belgium<br />

to discuss the project in more detail.<br />

Consequently, an in-depth risk assessment of the<br />

process was developed and, combined with<br />

Godiva’s research and Russell Finex’s experience,<br />

a design was finalised meeting all their objectives.<br />

The chosen solution utilised a combination of<br />

both liquid filtration units and round vibratory<br />

sieves covering two critical control points within<br />

the system. This provided Godiva complete<br />

control on contamination while increasing production<br />

flexibility required to meet market demands.<br />

The liquid filters installed were Russell Eco<br />

Self-Cleaning Filters, one after each storage<br />

tank. These would remove any contaminant<br />

from within the tanks that could have been<br />

introduced through rework. The units were selected<br />

due to their high flow rates and innovative<br />

self-cleaning design meaning operator involvement<br />

is kept to a minimum.<br />

The second control point was just before the depositors.<br />

A bank of Russell Compact Sieves replaced<br />

the two existing sieving units, working<br />

in tandem with the filters. “The Compact 400<br />

sieves were chosen as they fitted neatly into our


existing process without losing the cleanability<br />

of the depositors” states Van Ingelghem.<br />

The installation provided Godiva with a process<br />

that ensured contamination of foreign bodies<br />

was effectively eliminated. “Having a global recall<br />

is something that we are unable to quantify<br />

in terms of costs. However, with the new Russell<br />

systems in place we have complete peace<br />

of mind that our product is being supplied to the<br />

highest standards.” Van Ingelghem concludes;<br />

“In fact it has actually made our metal detectors<br />

virtually redundant since we rarely ever hear<br />

them activated”.<br />

The new installation has given Godiva complete<br />

traceability back to any contamination<br />

source. This has improved maintenance procedures<br />

whilst increasing efficiencies in the<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

rework processes. Moving forward, Godiva<br />

has recognised the support that Russell Finex<br />

provided throughout the project whilst also<br />

offering a customer care support system that<br />

ensures a fast response to any maintenance<br />

requirements. This was particularly evident at<br />

the early stages when time was spent trying<br />

to select the optimum mesh sizes for the<br />

equipment.<br />

For over 70 years Russell Finex has manufactured<br />

and supplied filters, sieves and separators to improve<br />

product quality, enhance productivity,<br />

safeguard worker health, and ensure liquids<br />

and powders are contamination-free. Throughout<br />

the world, Russell Finex serve a variety of<br />

industries with applications including food,<br />

pharmaceuticals, chemicals, adhesives,<br />

plastisols, paint, coatings, metal powders and<br />

ceramics.<br />

RUSSEL FINEX<br />

SLI: enter 27804 at www.tim-info.com/pcne<br />

SLI: enter 26921 at www.tim-info.com/pcne SLI: enter 26569 at www.tim-info.com/pcne<br />

May 2009 35


36 May 2009<br />

The Longwatch Video Surveillance<br />

System now has an interface to Flir’s<br />

A-Series Thermal Imaging cameras,<br />

so that thermal images can be<br />

viewed on standard HMI/SCADA<br />

software, such as Wonderware<br />

InTouch or GE Fanuc iFix.<br />

Video Surveillance Software<br />

Integrates Thermal Imaging<br />

The capability to interface the Video Surveillance<br />

System with Thermal Imaging cameras expands<br />

process monitoring, maintenance and process<br />

diagnostics, because the thermal images allow<br />

operators to see product/utility leaks, “hot<br />

spots” in a process, imperfections in finished goods,<br />

and other anomalies. Infrared imaging can also<br />

be used for intrusion monitoring.<br />

Thermal imaging has been used to analyze<br />

processes and for security purposes for years, but<br />

such systems typically have been specialized,<br />

stand-alone or handheld systems. Now, Longwatch<br />

enables real-time thermal images to be<br />

displayed on HMI screens in the control room,<br />

integrated with process displays, so operators<br />

can see what is happening in a process or on an<br />

assembly line. Thermal images can be displayed<br />

side by side with video images on the same<br />

screen, for a complete picture of the process.<br />

The Flir thermal cameras connect to Longwatch<br />

Video Engine software, installed at strategic<br />

sites in the plant, next to process equipment,<br />

and along automation assembly lines. The<br />

video engine continuously records images from<br />

multiple thermal and standard video cameras<br />

onto a local disk for up to 30 days, and sends<br />

“video clips” over the plant network to the<br />

Longwatch Video Control Center (VCC) in the<br />

plant’s control room. The VCC then sends the<br />

clips to HMI/SCADA software, a cellphone or PDA,<br />

and stores them in a Video Historian. Clips can<br />

be sent on a regular scheduled basis, on com-<br />

mand from the HMI/SCADA system, when a<br />

process or assembly step occurs, or in real<br />

time when an alarm occurs. The Longwatch<br />

system also enables cameras to be located in<br />

far remote regions, communicating back to<br />

the central control room over a variety of lowspeed<br />

or high-speed networks.<br />

The thermal camera and the Longwatch software<br />

at the remote site can be configured to alarm when<br />

pre-defined temperature conditions are detected,<br />

such as if a steam leak occurs or a process<br />

becomes too hot or too cold, or if an unexpected<br />

image appears, such as an intruder. The system<br />

can retrieve thermal images from before the<br />

incident occurs—such as 30 seconds before the<br />

alarm—and immediately send a video clip to<br />

the operator when the alarm occurs. Longwatch<br />

creates a “video sequence of events recorder.”<br />

The operator can switch to a live video feed<br />

and monitor the process from the control room.<br />

If more data is needed for a detailed analysis of<br />

the problem, all or part of the Longwatch system’s<br />

video history can be retrieved from the Longwatch<br />

Video Engine in high-resolution format, downloaded<br />

to a thumb drive or DVR, and viewed on a PC.<br />

The Video Historian enables users to acquire and<br />

store video clips linked with process and manufacturing<br />

variables such as time of day, camera<br />

number, batch step, machine ID and other<br />

control system tags. This gives users the ability<br />

to store hourly, daily, or weekly thermographs<br />

of process components to benchmark patterns<br />

and changes over time. It also allows thermal video<br />

clips to be stored for each step of a process, to<br />

document that steps were completed successfully<br />

or for quality control purposes.<br />

The Video Historian allows multiple images to<br />

be displayed at the same time, so engineers can<br />

compare processes side by side. Process managers<br />

may find problems they did not know even<br />

existed and would not have found in the past<br />

without thermal imaging.<br />

Having the ability to see imperfections in a<br />

process is not the only benefit. Thermal imaging<br />

also allows users to see unnecessary usage of equipment,<br />

warning signs that equipment is on the way<br />

out, and gives managers plenty of warning of pending<br />

problems, allowing them to make informed<br />

decisions on how to proceed in certain situations.<br />

FLIR<br />

SLI: enter 27831 at www.tim-info.com/pcne


SELF-PRIME PUMP<br />

fast priming<br />

The SP22 Series centrifugal pump<br />

with lifts up to 7.62m features a<br />

gooseneck design of the suction<br />

passage, which retains fluid in<br />

the priming chamber for fast repriming.<br />

Powered by magnetic<br />

drive technology, the SP Series<br />

has the ability to run-dry without damage in absence of continuous flow.<br />

With flow rates up to 946lpm, the SP22 is an alternative to more expensive<br />

ETFE-lined ductile iron self-priming pumps. The SP Series mounts<br />

to NEMA and IEC motor frames.<br />

Finish Thompson<br />

SLI: enter 27681 at www.tim-info.com/pcne<br />

SAFETY MONITOR<br />

for AS-i networks<br />

The Safety Monitor in<br />

Stainless Steel and the<br />

Safety Relay Output Module<br />

are made to match<br />

and can cope efficiently<br />

with many safety-related challenges. A big plant which requires 8 independent<br />

release circuits can be realised with a Safety Monitor<br />

with two integrated safe outputs plus 6 safe Relay Output Modules.<br />

Up to 16 release circuits can be operated by only one Safety Monitor.<br />

The user can also receive the complete diagnosis of all safe outputs<br />

and inputs.<br />

Bihl & Wiedemann<br />

SLI: enter 26948 at www.tim-info.com/pcne<br />

IN DIALOGUE WITH<br />

TECHNOLOGY<br />

The technology fair for automation<br />

and electronics<br />

Where else could you find out about so many products, trends and<br />

innovations?<br />

Welcome to “go 2009”.<br />

<br />

<br />

<br />

SLI: enter 27769 at www.tim-info.com/pcne<br />

VIBRATION SENSORS<br />

help protecting pumps<br />

This range of submersible vibration sensors<br />

was specifically designed for operation in<br />

partial or complete immersion in water, making<br />

them suitable for the monitoring of<br />

pumps in a maintenance role. The vibration<br />

sensors are provided with either AC, velocity<br />

or 4-20mA outputs, and are completely<br />

sealed to IP68 for operation in or under<br />

water. The range is also available in ATEX<br />

approved versions, with certification for<br />

operation in explosive liquids and gases.<br />

Hansford Sensors<br />

SLI: enter 27329 at www.tim-info.com/pcne<br />

SCREENS<br />

as one molded part<br />

<br />

future technology<br />

professionals competition<br />

May 2009 37<br />

For Fusion Screens a technology is<br />

employed that ‘fuses’ the screen mesh<br />

to the tension ring. This eliminiates<br />

the use of adhesive, epoxy or silicone in the manufacturing resulting in<br />

a construction that minimizes the potential for contamination. Benefits<br />

include precise repeatable tensioning and engineered uniform integral<br />

strain relief. The screen is comprised of the gasket, strain relief, and screen<br />

frame as one molded part. An optional one-piece center disc with integral<br />

strain relief is available for center support. Available in standard and<br />

Fusion Plus construction, which has FDA approved components for use<br />

in sanitary applications and higher temperature limits.<br />

Sweco<br />

SLI: enter 27796 at www.tim-info.com/pcne


38 May 2009<br />

NARROW-BEZEL 46” LCD DISPLAY<br />

for tiled video wall applications<br />

The NSL-4601, narrow-bezel<br />

46” LCD<br />

display offers WXGA<br />

resolution. It has been<br />

designed for tiled<br />

video wall applications<br />

in small to<br />

medium-sized control<br />

rooms and is an<br />

ideal collaborative<br />

visualization solution for Emergency Operations<br />

Centers and utilities & process control rooms.<br />

In combination with a dedicated display controller<br />

it allows to present sources in native resolution<br />

without loss of content, or scaled. Multiple<br />

sources (video, PC content or streaming<br />

video) can be presented and positioned anywhere<br />

across the entire LCD stack. It can be combined<br />

with streaming video cards, which allow simultaneous<br />

processing of large amounts of<br />

streaming video signals in real-time with minimal<br />

latency. The video walls can be serviced<br />

from the front and the back. They require no back<br />

room space at all, so they are ideally suited for<br />

control rooms where space is limited. The high<br />

resolution of the tiled video wall allows operators<br />

to sit close by and monitor high-density<br />

information.<br />

Barco<br />

SLI: enter 27819 at www.tim-info.com/pcne<br />

FFS PACKAGING SYSTEMS<br />

tailored to different requirements<br />

This revised machinery<br />

program for FFS (Form, Fill<br />

and Seal) applications, includes<br />

four different machine<br />

types for varying<br />

output levels up to in excess<br />

of 2,200 sacks/hour.<br />

Rubin is designed for small<br />

or irregularly placed bagging<br />

orders with an output of 400 sacks/h, it is<br />

economically priced and reliable, suited for applications<br />

requiring low level performance or<br />

shifting from manual to automatic processes.<br />

The Opal is developed for FFS packaging applications<br />

involving highly dusty and powdery as well<br />

as non-free flowing products. A closed system ensures<br />

that the difficult to handle products, are bagged<br />

in a controlled manner. The Topas model for allround<br />

bagging applications comes in a version for<br />

consumer products, featuring a handle punch<br />

as well as edge sealing capability, and one for the<br />

high speed bagging of standard plastic resins for<br />

industrial applications. The high-performance<br />

Diamant FFS system features an all-new drive technology<br />

and a specially developed weighing scale.<br />

Designed for high maximum bagging speeds<br />

and equipped with a rotary filling section, it is<br />

suited for consistent and continuous operation.<br />

Windmöller & Hölscher<br />

SLI: enter 25585 at www.tim-info.com/pcne<br />

GRAVIMETRIC BLENDERS<br />

for up to 7 components and up to 3,000kg/hr<br />

The loss in weight gravimetric<br />

blenders provide<br />

a dosing solution for<br />

blending and extrusion<br />

control for up to 7 components<br />

and up to<br />

3,000kg/hr. They provide<br />

continuous throughput<br />

measurement, and maintain<br />

the extruder throughput<br />

at the desired level,<br />

i.e. Kg/hr control. Haul off<br />

speed measurement can<br />

be added to ensure that the weight per length<br />

is controlled to the desired specification (yield<br />

control). This ensures that the product being<br />

produced is maintained at the desired thickness<br />

without operator intervention. The user-friendly<br />

touch screen control panel provides intuitive<br />

text prompts, the operator can view material<br />

weights and kg/h throughput, and alarm incidents<br />

which are time and date stamped. The electronics<br />

design allows for rapid weight loss measurement<br />

allowing the blender to react to any<br />

change in line speed or screw speed. The blockage/stall<br />

feature will detect a stalled screw or<br />

material blockage while an encoder will provide<br />

instantaneous dosing screw speed data.<br />

TSM Control Systems<br />

SLI: enter 27791 at www.tim-info.com/pcne<br />

PRESSURE TRANSDUCER<br />

differential, scalable measurement range<br />

The P 26 differential<br />

pressure transducer<br />

meets the high demands<br />

of applications<br />

like clean room monitoring<br />

and offers the<br />

ability to monitor sterile<br />

environments in the packaging machines for<br />

such industries as foods and pharmaceuticals.<br />

Measurement ranges between 100Pa and<br />

100kPa are freely scalable from 10 to 100%, and<br />

provide the option of switching to other units<br />

of measurement like mmH2O, mmHg, etc.<br />

Cyclical self-calibration of the zero point ensures<br />

a high level of measurement stability. Two<br />

cutoff points are available that can be set<br />

freely along the entire measurement range;<br />

these allow the user to connect visual or audible<br />

alarms that would be triggered any time values<br />

fall above or below limits. All measurement<br />

values can be read on an optional graphic<br />

LCD. The instrument can communicate with a<br />

master control unit via an RS 232 interface and<br />

can be mounted either on a wall or on top-hat<br />

rails. A hand-held unit can be used as a configurator<br />

for the one-time calibration when using<br />

more than one of the affordable P 26 pressure<br />

transducer without a display.<br />

Halstrup-Walcher<br />

SLI: enter 27793 at www.tim-info.com/pcne<br />

FLOW CONTROLLER<br />

integrates sensor, electronics and valve<br />

The LiquidFlow Controller<br />

integrates sensor, control<br />

electronics and proportional<br />

valves in a single<br />

compact device making it<br />

suitable for applications<br />

requiring the fully-automatic<br />

metered dosing of<br />

small amounts of liquids.<br />

It is designed for the dynamic<br />

control or metering of liquids such as<br />

deionised or demineralised water, methanol<br />

or low-viscosity oils. The controller offers measurement<br />

and dosage of liquids with a nominal<br />

flow rate of 0.6 to 36 l/h and a span of 1:10.<br />

Thanks to its compact design, the controller can<br />

be installed in difficult locations, such as directly<br />

behind angled piping. The device is available<br />

in a IP65 version for rough environments. The<br />

integration of sensor, control electronics and actuator<br />

makes it no longer necessary to design<br />

complex individual components, and avoids<br />

interface-related communication difficulties.<br />

The digital controller offers flow-rate measurements<br />

without moving parts inside the<br />

medium flow. The Integrated prefilter is replaceable.<br />

The interfaces include analogue/digital<br />

via field bus or RS232/RS485.<br />

Bürkert<br />

SLI: enter 27821 at www.tim-info.com/pcne<br />

LONGLIVED PUMPS<br />

with electronic monitoring module<br />

The company now offers<br />

additional protection<br />

for the<br />

longevity of its<br />

pumps. The Allready<br />

Box is an electronic<br />

module that continuously<br />

monitors a<br />

pump’s operational<br />

state. In the event of<br />

operational deviations<br />

or disturbances, it immediately<br />

emits a warning. In urgent cases it<br />

triggers an alarm and even has the ability to<br />

switch the pump off in hazardous conditions and<br />

switch over to a secondary unit. This monitoring<br />

device can be mounted on new pumps or<br />

retrofitted to existing pumps at any time. One<br />

sensor measures the liquid level in a leak can<br />

below the shaft seal. A second sensor monitors<br />

the temperature at the bearing bracket. If one<br />

of the values reaches a critical value the device<br />

will trigger an optical warning. If the level<br />

or temperature continues to climb and exceeds<br />

a second limit value, it will trigger an alarm. Signals<br />

can also be forwarded to external displays<br />

and integrated into the customer’s structures,<br />

such as an existing control center.<br />

Allweiler<br />

SLI: enter 27828 at www.tim-info.com/pcne


OVERPRESSURE ENCLOSURE<br />

for explosion-proof areas<br />

This enclosure is designed for an operating<br />

pressure of 1.5 to 2.0mbar, in accordance<br />

with the DIN EN 60079-0 and<br />

DIN EN 60079-2 standards. This way, an<br />

explosion-free zone exists in the enclosure<br />

interior. The enclosure features a cooling<br />

output of up to 3.0kW thanks to a cooling<br />

concept especially developed for areas<br />

with a risk of explosion. The overpressure<br />

enclosure is available in spray finished<br />

sheet steel or stainless steel, and can be fitted with a roof.<br />

Rittal<br />

SLI: enter 27327 at www.tim-info.com/pcne<br />

SUPER SEAL AND CUP SEAL<br />

minimise the risks of glass inclusion<br />

Wherever high-speed bottling is required, such as with beer,<br />

wines, ciders, water or carbonated drinks, in case of bottle<br />

breakages there is always the risk of glass inclusion in<br />

seals and centering cups. The Super Seal and new cup seal manufactured from polyurethane<br />

with a patented auto-decontamination system minimises strongly this risk. The choice<br />

of materials was crucial in maximising safety and improving efficiency. These seals<br />

are FDAapproved and have an increased lifespan which is on average twice as long<br />

as the one of comparable cups and seals manufactured from rubber based materials.<br />

They are coloured coded so that it becomes very easy for users and maintenance<br />

staff to identify the right cup or seal for the right bottle filler. Furthermore they<br />

offer superior changeability, wearability and sanitation and they help on saving costs.<br />

Uni-Spray Systems<br />

SLI: enter 26823 at www.tim-info.com/pcne<br />

SLI: enter 27776 at www.tim-info.com/pcne<br />

MASS FLOW CONTROLLER<br />

with ANSI or DIN flanges<br />

May 2009 39<br />

The Max-Trak model 180 industrial<br />

mass flow meters and controllers<br />

are now available with 316 stainless<br />

steel (ANSI or DIN) flange mounting<br />

for gas flow rates up to 1000 SLPM<br />

(pipe sizes up to 1 inch / 25mm). The design enhancement expands the<br />

processes and applications where it can be installed. The model has accuracy<br />

(+/-1% of FS) and repeatability (+/-0.2% of FS) coupled with unsurpassed<br />

instrument stability resulting from a patented, inherently-linear<br />

design, advanced platinum sensor technology, and a valve that is<br />

strong, flexible and forgiving.<br />

Sierra Instruments<br />

SLI: enter 27330 at www.tim-info.com/pcne<br />

FANLESS NANOSERVER<br />

for mobile applications<br />

The compact NanoServer E3-COM is<br />

an industrial computer that integrates<br />

a baseboard in mini ITX format.<br />

Peripheral devices can easily be<br />

connected via the four USB 2.0 ports.<br />

Furthermore it has two PCI buses, one<br />

MiniPCI bus and one gigabit Ethernet<br />

interface. It has a solid industrial PC housing with dimensions of<br />

220x220x110mm, and contains a 2.5-inch hard disk with 80GB capacity<br />

designed to operate in a temperature range of -20 to 75°C. It runs<br />

under Windows XP.<br />

DSM Computer<br />

SLI: enter 26826 at www.tim-info.com/pcne<br />

Your heating solution Your heating solution ATEX heated lines<br />

For gas sampling in hazardous areas<br />

<strong>Complete</strong> system, ready to connect, tested and certified according to ATEX.<br />

For zones 1/2 (gas) and 21/22 (dust)<br />

Temperatures up to 200 °C (class T6 - T3)<br />

Very flexible easy installation<br />

Send your inquiry to sales@winkler.eu<br />

SLI: enter 27754 at www.tim-info.com/pcne<br />

To receive further<br />

info via SLI:<br />

See page 43


40 May 2009<br />

WEIGHFEEDER<br />

available in a hygienic design<br />

The Multidos L Weighfeeder<br />

is designed for<br />

gravimetric feeding<br />

tasks or when recording<br />

mass flows of special<br />

products. The system<br />

is economic,<br />

space-saving and virtuallymaintenancefree.<br />

Available as an open design and with a dustproof<br />

housing variant it is either supplied in its<br />

standard or special designs for different industry<br />

sectors. The weighfeeder is available with<br />

a hygienic design which satisfies the most<br />

stringent hygienic requirements of the food<br />

industry. The standardised modular system<br />

with a band width of 300 to 1,200mm and<br />

wheel bases of between 1,000 and 3,500mm<br />

is available in 100% stainless steel. Its maximum<br />

output is 170m 3 /hr. With integrated weighing<br />

technology the system handles a wide variety<br />

of products such as cocoa powder, cereals, salt<br />

or freeze-dried vegetables. The open variant is<br />

also used for special applications in the meatprocessing<br />

industry, for example when making<br />

mincemeat or sausages. The system can be<br />

integrated in bus connections such as Profibus<br />

DP, Ethernet or DeviceNet.<br />

Schenck Process<br />

SLI: enter 27802 at www.tim-info.com/pcne<br />

CORIOLIS FLOW METERS<br />

compact, capacity of up to 30 kg/h<br />

The mini CORI-FLOW is<br />

a compact Coriolis Mass<br />

Flow Meter/Controller<br />

for measurement and<br />

control of (very) low flow<br />

rates. Its full scale capacity<br />

has been extended<br />

from 1kg/h to 30kg/h.<br />

The instruments are suitable<br />

for both liquid and<br />

gas flow applications.<br />

The design of the sensor features superior response<br />

time and high accuracy, irrespective<br />

of changing operating conditions with regard<br />

to pressure, temperature, density, conductivity<br />

and viscosity. The effective turndown is no<br />

less than 1000:1, with easy, on-site possibility<br />

for the user to re-range the instrument to his<br />

requirements. The instruments have a robust IP65<br />

weatherproof housing and are available with approval<br />

for use in hazardous areas (ATEX Cat.3<br />

Zone 2). Features include: state-of-the-art<br />

digital technology, standard analogue and RS-<br />

232 communication, optional fieldbus interfaces<br />

and additional functions such as alarms, totaliser<br />

(to measure fluid consumption) and batch dosing.<br />

The instruments feature fluid temperature<br />

and density as secondary digital outputs.<br />

Bronkhorst High-Tech<br />

SLI: enter 27822 at www.tim-info.com/pcne<br />

LIQUID TURBINE FLOW METER<br />

for mobile fuel operations<br />

The portable Daniel Series<br />

500 Liquid Turbine Flow Meter<br />

serves the need for highly<br />

accurate flow measurement<br />

in road tanker off-loading<br />

and can be used as a<br />

check meter at loading points<br />

in distribution terminals. It<br />

can also be mounted to loading<br />

arms to monitor the performance<br />

of other meters<br />

during loading operations<br />

in distribution terminals,<br />

and is easily removed when the verification is<br />

complete. A bladed rotor turns at a speed proportional<br />

to rate of flow, this rotation is sensed<br />

by electrical pickoffs. The resultant signal is used<br />

as an input to the intrinsically safe electronic<br />

totaliser, which displays flow rate and total<br />

volume. All the electronics are located in the<br />

water-tight aluminium housing and are easily<br />

accessible from the outside. The device is suited<br />

for measurement of various refined and<br />

light hydrocarbon products, including gasoline<br />

and diesel fuels. It is offered in DN80 and<br />

DN100 line sizes with extended flow ranges of<br />

246 to 2460 litres/minute and 378.5 to 3785<br />

litres/minute respectively.<br />

Emerson Process Management<br />

SLI: enter 27807 at www.tim-info.com/pcne<br />

WIRELESS LAN ACCESS POINTS<br />

interface according to IEEE802.11n<br />

The industrial-grade<br />

wireless LAN access<br />

points feature a wireless<br />

interface in compliance<br />

with IEEE802.11n (draft<br />

2.0). The new wireless<br />

standard permits similar<br />

transfer rates as<br />

achieved by a Fast Ethernet<br />

cable. MiMo (multiple<br />

input, multiple<br />

output) send and receive<br />

technology provides<br />

significantly higher reach, reliability and<br />

stability of wireless transmissions both in the<br />

2.4GHz and in the 5GHz frequency range. Moreover,<br />

MiMo is particularly suitable for applications<br />

where typical industrial interferences<br />

must be expected, such as reflexions. WLAN devices<br />

equipped with wireless interfaces according<br />

to older IEEE802.11a/b/g/h standards<br />

also benefit from the greater reach of the new<br />

access points. The IWLAN access points are offered<br />

in two models: BAT300-Rail, designed<br />

for installation on standard rails in control cabinets,<br />

and BAT300-F with housings rated to<br />

protection classes IP65 and IP67 for direct<br />

field installation.<br />

Belden<br />

SLI: enter 27817 at www.tim-info.com/pcne<br />

TEMPERATURE DATA LOGGER<br />

miniature, for up to +150°C<br />

The EBI 11 miniature temperature data logger<br />

is designed to monitor temperatures up to<br />

+150°C in very narrow spaces. In the medical<br />

sector, it is used for the validation of small<br />

steam sterilising apparatus and cleaning disinfectors.<br />

It is available in three versions: with a<br />

fixed 18mm sensor for use in bottles, tins and<br />

bags (adaptors for tins and special bottle sizes<br />

are available) and with a flexible 50 or 100mm<br />

sensor for use in steam sterilising apparatus and<br />

cleaning disinfectors. It is accurate over a<br />

range of temperatures from 0 to 150°C (±0.1°C)<br />

with a resolution of 0.01°C. It stores up to<br />

16,000 measured values, and has an adjustable<br />

logging interval from 1 sec to 24 hours. The device<br />

works with the Winlog.pro software and is<br />

downloaded via the IF 200 interface. Battery life<br />

depends on the sampling rate and the temperature<br />

of use. With a logging interval of 1 sec,<br />

18 days is typical, and with an interval of 1 min<br />

the lifetime is 40 weeks. The IP68 logger measures<br />

only 16.5 x 22mm (without sensor).<br />

ebro Electronic<br />

SLI: enter 27818 at www.tim-info.com/pcne<br />

EMISSION SPECTROMETERS<br />

enable reliable biodiesel analysis<br />

The Radial Plasma<br />

View iCAP 6000 Series<br />

of ICP emission<br />

spectrometers<br />

achieves dependable<br />

monitoring of elemental<br />

contaminants<br />

in biodiesel. The dedicated radial plasma view configuration<br />

provides analytical capabilities for important<br />

elements such as sulfur and phosphorus<br />

while the matrix tolerance (EMT) torch and swing<br />

frequency RF generator easily handle organic<br />

matrix samples and ensures improved stability.<br />

The EN 14214 and ASTM D6751 standards require<br />

that the concentrations of elemental contaminants<br />

in biodiesel are regularly monitored and specify<br />

the method for its analysis. The radial view offers<br />

an alternative to axial view ICPs, considerably increasing<br />

analytical sensitivity for important elements<br />

like phosphorus and sulfur. The spectrometers<br />

have wavelength coverage from 166 to<br />

847nm with full frame capability, offering full spectrum<br />

trend analysis and contamination identification<br />

between batches of biodiesel produced. The<br />

systems are fitted with a 4th generation CID<br />

detector and incorporate fully automated wavelength<br />

calibration and offset correction capabilities<br />

for long term stability.<br />

Thermo Fisher Scientific<br />

SLI: enter 25571 at www.tim-info.com/pcne


ASEPTIC DIAPHRAGM VALVES<br />

enable reduced cleaning cycle times<br />

The extensive<br />

range of aseptic<br />

diaphragm valves<br />

have many applications<br />

in the<br />

pharmaceutical,<br />

cosmetics and life science markets and their CD-<br />

SA design, enables savings to be made in the<br />

time taken for system cleaning and sterilising.<br />

Their sealing performance and the elimination<br />

of crevices at the diaphragm joint, enables<br />

SIP cycle times to be reduced and the time<br />

and chemical volume of CIP systems is also reduced.<br />

The range comprises the KMD, KMA<br />

and Steripur styles, all with stainless steel<br />

316L bodies which have contoured and streamlined<br />

surfaces and are self draining. The compact<br />

Steripur is a high cycle, piston design<br />

with stainless steel actuator suited to manifold<br />

valve assemblies. The KMA range features a diaphragm<br />

or piston actuator with stainless steel<br />

support for steam applications. The compact KMD<br />

range has a highly smooth exterior making it<br />

suitable for washdown applications. Available<br />

in sizes from DN4 to DN100mm, the range is<br />

completed with the option to supply as a welded<br />

assembly or as a multiport design for mixing<br />

and blending applications.<br />

Asco Numatics<br />

SLI: enter 27814 at www.tim-info.com/pcne<br />

OIL-INJECTED COMPRESSORS<br />

increased efficiency & remote monitoring<br />

Oil-injected<br />

screw compressors<br />

of the 11-<br />

9 0 k W<br />

GA/GA+/GA<br />

VSD range feature<br />

new compressor<br />

controls.<br />

Elektronikon<br />

Graphic and the integrated Energy Saving (ES)<br />

Systems ES4/6i, contribute to an increasing compressed<br />

air efficiency, resulting in lower operating<br />

costs. In addition, free online visualization<br />

enables remote monitoring, allowing for anticipation<br />

of operating and maintenance needs. The<br />

Elektronikon Graphic measures several compressor<br />

and dryer parameters while several built-in<br />

algorithms allow saver cycles for both fan and<br />

dryer. Additional features such as dual pressure<br />

band and timer based controls enable maximized<br />

energy savings by matching the operating<br />

pressure to the customer’s air demand. An optionally<br />

integrated Energy Saving Control System<br />

ES6i is capable of regulating and sequencing<br />

up to 6 variable or fixed speed compressors;<br />

while optimizing the customer’s installation by<br />

reducing the overall working pressure band of<br />

each compressor to meet the varying air demand.<br />

Atlas Copco Airpower<br />

SLI: enter 27824 at www.tim-info.com/pcne<br />

RADAR SENSORS<br />

temperature range up to 450°C<br />

More than<br />

200,000 Vegapuls<br />

radar sensors are<br />

installed and operate<br />

all over the<br />

world. The Vegapuls<br />

plicsplus<br />

represents the<br />

next generation<br />

of the tried pulse<br />

radar technology.<br />

Through the extension<br />

of the temperature range to 450°C<br />

and the higher chemical resistance of the antennas,<br />

the sensor has a much wider application<br />

spectrum. It features additional housing versions,<br />

an optimised connection concept and simplified<br />

operation thanks to clear adjustment parameters<br />

allowing for easy setup and commissioning.<br />

Its microprocessors provide power for<br />

the signal analysis and enable complex processing<br />

algorithms. The electronic components allow<br />

for fast signal evaluation and a differentiation<br />

between product level and vessel installations<br />

enabeling the sensors to follow quick level<br />

changes. This accommodates the recent<br />

market trend of implementing smaller vessels<br />

with shorter filling and emptying cycles.<br />

Vega<br />

SLI: enter 27964 at www.tim-info.com/pcne<br />

VISION SENSOR<br />

as presence or measurement sensor<br />

The Checker 3G<br />

series of vision<br />

sensors offer simple<br />

setup, integrated<br />

part detection,<br />

lighting,<br />

I/O and job<br />

change all in a<br />

rugged IP67 housing. The user chooses whether<br />

to configure the sensor as a presence sensor or<br />

measurement sensor. Presence sensors verify<br />

that features are present. Measurement sensors<br />

verify that features are the correct height,<br />

width and/or diameter. In either mode, there<br />

is no limit to the number of part features that<br />

a single device can check. Checker is also able<br />

to detect and track over 6,000ppm in varying<br />

positions along the production line, overcoming<br />

imprecise part positioning and delivering<br />

consistent, precisely timed pass/fall results. It<br />

does not require a PC for setup. Instead, the SensorView<br />

Teach Pendant, with its One-Click Setup<br />

TM technology, allows the user to set up jobs<br />

right on the line and has them running in a matter<br />

of minutes. A single teach pendant can be<br />

used to set up any number of sensors and can<br />

remain connected for real-time application<br />

monitoring.<br />

Cognex<br />

SLI: enter 27803 at www.tim-info.com/pcne<br />

Upcoming<br />

MAY<br />

• Control<br />

events<br />

5 - 8 May, Stuttgart, Germany<br />

www.control-messe.de<br />

• Achema<br />

11 - 15 May, Frankfurt, Germany<br />

www.achema.de<br />

• Balttechnika<br />

20 - 23 May, Vilnius, Lithuania<br />

www.litexpo.lt<br />

• Autopromotec<br />

20 - 24 May, Bologna, Italy<br />

www.autopromotec.it<br />

• Sensor + Test<br />

26 - 28 May, Nuremberg, Germany<br />

www.sensor-test.de<br />

JUNE<br />

• Progressive Manufacturing<br />

Summit 2009<br />

9 - 11 June, Sarasota FL, USA<br />

www.managingautomation.com/summit<br />

• Hape<br />

16 - 19 June, Poznan, Poland<br />

http://hape.mtp.pl/en<br />

SEPTEMBER<br />

• Go Automation<br />

1 - 4 September, Basel, Switzerland<br />

www.go-automation.ch<br />

• Valve World<br />

23 - 24 September, Suzhou, China<br />

www.valve-world.net<br />

• Hydraulics & Pneumatics<br />

23 - 25 September, Helsinki, Finland<br />

www.finnexpo.fi<br />

• Automaatio<br />

23 - 25 September, Helsinki, Finland<br />

www.finnexpo.fi<br />

• Fachpack<br />

29 September - 1 October, Nuremberg, Germany<br />

www.fachpack.de<br />

OCTOBER<br />

• EMO<br />

5 - 10 October, Milan, Italy<br />

www.emo-milan.com<br />

May 2009 41<br />

For more information: www.pcne-online.com/events


42 May 2009<br />

Companies<br />

in this issue<br />

A Allweiler 38<br />

Asco Numatics 41<br />

Atlas Copco - <strong>Industrial</strong> Air Div. 41<br />

AUMA Riester 25<br />

B Barco 38<br />

BASF 27<br />

Baumer Bourdon-Haenni 10<br />

Belden 40<br />

Bihl & Wiedemann 37<br />

Biohit 29<br />

Bosch Packaging Technology 8<br />

Bronkhorst High-Tech 40<br />

Bürkert 15, 38<br />

C CLPA 6<br />

Cognex 41<br />

D DSM Computer 39<br />

E ebro Electronic 40<br />

Emerson Process Management 40, 44<br />

Energair Solutions 16<br />

F Finish Thompson 37<br />

Flir Systems 36<br />

Fluid Metering 39<br />

Fox 31<br />

G Gemü Apparatebau 21<br />

Georgin 35<br />

Gneuß Kunststofftechnik 28<br />

Go Automation 37<br />

GSR Ventiltechnik 17<br />

H Halstrup-Walcher 38<br />

Hansford Sensors 37<br />

HIMA Paul-Hildebrandt 26<br />

K Krohne 13<br />

M Meister 31<br />

Mentor 27<br />

Mettler Toledo 29<br />

N Nikkiso - KSB 20<br />

Nitto Kohki 35<br />

O Omega Engineering 2<br />

P Pepperl+Fuchs 9, 12<br />

Piab 32<br />

R Rembe 29<br />

Rittal 39<br />

Russel Finex 34<br />

S Schaeffler 29<br />

Schenck Process 40<br />

Sensor Technology 30<br />

Sierra Instruments 39<br />

SKF 14<br />

Stauff 29<br />

Sweco 37<br />

T Thermo Fisher Scientific 40<br />

Trelleborg 24<br />

TSM Control Systems 38<br />

U Uni-Spray Systems 39<br />

V Vega Grieshaber 7, 41<br />

W Watson-Marlow 18<br />

Windmöller & Hölscher 38<br />

Winkler 39<br />

Wolke 33<br />

Note: Bold for companies advertising in this issue


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Providing higher yields and greater safety.<br />

Achieving increased regulatory compliance.<br />

Eliminating all those trips up the ladder.<br />

Amazing what the right level instrumentation could do.<br />

It’s Emerson products and the people that make all the difference. Our portfolio of Rosemount ® level instrumentation<br />

covers the breadth of today’s leading technologies as well as tomorrow’s ground-breaking ones. We then augment<br />

your level technologies further with our new Smart Wireless solutions and advanced diagnostics. And finally, top-tier<br />

Emerson application specialists and tools are at your disposal to help squeeze the absolute most from your process.<br />

So start climbing less and achieving more, go to www.Rosemount.com/Level<br />

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SLI: enter 27278 at www.tim-info.com/pcne<br />

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