WORLD PUMP

THE INTERNATIONAL MAGAZINE FOR PUMP USERS

Number 625 June 2019

Dewatering

dilemmas:

Selecting a submersible

dewatering pump

Also:

• Oil & gas

• Food & drink

• Abrasive handling

in liaison with

www.worldpumps.com

PUMPS

HOW DO WE BEAT THE

NEGATIVE EFFECTS OF

THE MONSOON RAIN?

RELIABLE PUMPING

TECHNOLOGY

Vietnam is one of the rainiest countries

in the world. The peak is reached

during the three-month rainy season

in late summer and fall. In this period,

the incoming monsoon causes heavy

storms every year. Over the last decade,

these caused rivers and streams

to burst their banks, thus leading to

widespread flooding and human tragedies.

To contain these severe effects,

the Vietnamese government launched

numerous flood control projects. By

May 2019 the biggest flood discharge

pumping station, Yen Nghia, in the

country will be put into operation. AN-

DRITZ delivered ten vertical line shaft

pumps specially customized for flood

control.

Open the photo app on your mobile,

focus on QR code, click on the link

and read more about this project!

ANDRITZ AG / p +43 316 6902-2509 / pumps@andritz.com / andritz.com/pumps

Contents

1

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Contents

• Business news 2

• Product news 4

• Articles 12

20

• Oil & gas

• Food & drink

• Abrasive handling

14 12

Cover image courtesy of manine99/Shutterstock.

Corrosion-resistant submersible success 12

A profile of a pump that can handle highly acidic liquid polluted

water and run-off from mines and quarries.

Sealing success eliminates rebuild need 14

How fluid seal technology helped a US manufacturer and blending

facility to cut costs and reduce downtime.

Multi-phase system cuts separation 20

How a multi-phase pumping system eliminated the need for

a separation system in an oil field.

Considerations in pump selection 22

A look at the main factors to be considered when selecting

a submersible dewatering pump.

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2

Business news

WORLD PUMPS June 2019

Svanehøj wins VLEC order

The Danish pump specialist

Svanehøj has secured an order

from Samsung Heavy Industries to

provide 42 pumps for three new

very large ethane carriers (VLECs).

The ships, which have been

ordered by the Chinese company

Zhejiang Satellite Petrochemical,

will be used to carry liquid ethane

from Texas, USA to the company’s

petrochemical terminal in Lianyungang,

China.

The Svanehøj order includes 24

offloading pumps, 12 spray

pumps and six fuel pumps. All of

the pumps will be manufactured

in Denmark and delivered to

Samsung Heavy Industries in

South Korea within the first six

months of 2020.

“3–4 years ago we predicted that

there would be opportunities in

this area as the international

demand for ethane for the

production of plastics has risen.

The Grundfos Group has hired

Ulrik Gernow for the new role of

chief marketing officer (CMO).

Gernow joins Grundfos from the

LEGO Group where he has held

several executive positions over

the past 24 years, most recently

serving as chief business transformation

officer.

He will become a member of

Grundfos group management

reporting directly to CEO and

group president Mads Nipper.

Before moving to Grundfos in

2014, Nipper served as LEGO’s

chief marketing officer and executive

vice president.

Together with our French partner,

GTT, we have worked to develop

solutions specifically for these

VLECs, and we are now beginning

to see the results,” said Svanehøj

sales director Hans Høyer Jensen.

Svanehøj has previously supplied

pump systems for ships that

transport ethane, but not for

vessels as large as these.

www.svanehoj.com

Svanehøj's cargo pumps are used for

offloading liquid gas from the VLECs.

Grundfos appoints chief

marketing officer

“With his proven track record, I

feel convinced that Ulrik can

make great contributions to

Grundfos and our 2025 strategy

as we accelerate our efforts to

pioneer the solutions to the

world’s water and climate

challenges.”

www.grundfos.com

XPV Water Partners

invests in Holland Pump

Canada’s XPV Water Partners, a

growth equity investor focused

on water treatment and management,

has invested in Holland

Pump Company, the US specialty

pump rental and dewatering

solutions provider.

Holland Pump manufactures, sells,

rents and services pumps and

related equipment for infrastructure

project dewatering and

sewer by-pass, as well as for a

wide range of agricultural,

mining, marine and other

industrial applications.

Formed in 1978, Holland Pump

produces diesel driven systems

and maintains a large fleet

including diesel driven rental

pumps deployed primarily in the

southern United States.

Lewa Nikkiso awarded

CERN contract

Lewa Nikkiso Switzerland AG has

received an order worth more

than CHF5.5 million from the

European Organization for Nuclear

Research (CERN), following a call

for tenders.

The contract, which was signed in

September 2018, includes the

delivery of 33 LDG drive units with

remote pump heads in single,

duplex and triplex designs. These

units are intended to cool a variety

of detectors using liquid CO 2

as part

of the ATLAS and CMS experiments.

The contract also covers maintenance

services on the systems for a

period of up to 13 years.

The company’s corporate, manufacturing

and central repair facilities

are in West Palm Beach,

Florida. Holland Pump has branch

offices in Pensacola, Jacksonville,

Orlando, Tampa, Ft Myers, and

West Palm Beach, Florida as well

as an operation in South Carolina.

“XPV shares our vision for future

growth and we’re excited to

leverage their vast network of

industry relationships,” said Win

Blodgett, president of Holland

Pump. “After doing our due diligence

with XPV, it became clear

there was a good basis for a

collaborative business proposition,

and they were the right partner

to help take us to the next level.”

www.hollandpump.com

www.xpvwaterpartners.com

The first test systems were

commissioned in May 2019.

The A Toroidal LHC ApparatuS

(ATLAS) experiment and the

Compact Muon Solenoid (CMS)

experiment are two of four

projects currently installed at the

Large Hadron Collider, the world’s

largest particle accelerator, in

Geneva.

This is not the first time that CERN

and Lewa Nikkiso have collaborated.

In 2005, the research institute

received a Lewa Ecoflow

LDC-M9 pump through the Dutch

institute NIKHEF. Lewa’s Swiss

subsidiary has also provided CERN

with additional pump systems in

various sizes featuring a remote

pump head design.

“Strong customer focused innovation,

world class marketing and

branding, and great leadership, is

the combination that Ulrik will

bring to Grundfos,” said Nipper.

Ulrik Gernow, the new chief marketing

officer at Grundfos.

www.lewa.com

https://home.cern/

The Lewa remote head pumps are intended to cool a

variety of detectors using liquid CO 2 . Source: CERN.

www.worldpumps.com


Business news 3

Dover adds All-Flo Pump

to PSG unit

John Crane expands

in Qatar

Dover Corp has completed the

acquisition of All-Flo Pump Co Ltd,

an Ohio-based manufacturer of

specialty air-operated doublediaphragm

(AODD) pumps used to

transfer viscous, abrasive and

hazardous fluids, sludges and slurries.

All-Flo Pump is now part of the

Pump Solutions Group (PSG) unit

within Dover’s Fluids segment.

Founded in 1986 and headquartered

in Mentor, Ohio, All-Flo had

revenues of around US$12 million

in 2018.

“We’re excited to add All-Flo to

our best-in-class portfolio of pump

businesses,” said Richard Tobin,

Dover’s president and CEO. “This

acquisition strengthens PSG’s

market-leading position and is

consistent with our strategic

approach of deploying capital in

close-to-core markets that offer

sustainable, profitable growth, and

where we can confidently create

value for shareholders.”

Karl Buscher, president of PSG,

said: “We are very excited to have

the opportunity to add the All-Flo

range to our unique specialty

pump portfolio. We see All-Flo

expanding our channels and

enabling more flexibility to implement

alternative routes to market.”

PSG brands already include

Abaque, Almatec, Blackmer, Ebsray,

EnviroGear, Griswold, Mouvex,

Neptune, Quattroflow and Wilden.

www.psgdover.com

https://all-flo.com

John Crane, in partnership with oil

and gas and energy service

provider Al-Ahed Trading and

Contracting Co, has opened

Qatar’s first dry gas seal and

testing facility.

Located in the Ras Laffan Industrial

City (RLIC) security area, the new

service centre increases John

Crane’s localization efforts in Qatar.

Phase two of the service centre

will bring additional capabilities to

cover wet seal product services

and support.

John Crane’s other Qatari service

facility, located in the Salawa

Industrial Area near Doha, will

continue to extend wet seal repair

services to oil and gas customers

within the region.

Al-Ahed has represented John Crane

within Qatar for nearly 40 years.

www.johncrane.com

The opening of John Crane’s first dry gas seal repair and test facility in Qatar.

Another acquisition for Dover. Image macgyverhh/Shutterstock.com

Abel secures order for

14 diaphragm pumps

Andritz provides pumps

for water supply in Jordan

Andritz has supplied 12 multistage

axial split case and highpressure

ring section pumps to

the Water Authority of Jordan.

pressure ring section pumps

from the HP43 series for the

water distribution to the Madaba

region.

A Mexican mining company has

commissioned the German pump

manufacturer Abel GmbH to supply

14 hydraulic diaphragm pumps.

The Abel pumps will be used to

transport sulfuric acid-containing

jarosite sludge in the course of zinc

production.

Hydrometallurgical zinc extraction

separates iron and zinc by chemical

precipitation.

www.abel.de

A hydraulic diaphragm pump

from Abel.

The energy-efficient pumps are

now securing the water supply of

the capital city Amman.

Andritz was selected to refurbish the

two key pumping stations Lib and

Wala for Amman's water supply.

Six Andritz multi-stage axial split

case pumps from the ASPM

series were installed to increase

the total capacity of the Lib

pumping station to 2500 cubic

metres per hour. The scope of

supply also included six high-

Andritz says that the new system

should lead to energy savings of

up to 20%.

www.andritz.com

Andritz delivered six multi-stage axial

split case pumps and six high-pressure

ring section pumps. Photo: Andritz.

For more business news,

read Pump Industry Analyst every month.

Download a sample copy at www.pumpindustryanalyst.com

www.worldpumps.com

4

Product news


Upgrade mechanical seal

assembly for RS Series

Australian pump manufacturer

Ebsray Pumps, part of PSG, a

Dover company, has a

new mechanical seal

assembly for its RC Series

regenerative turbine pumps.

The new seal assembly is a direct

replacement for the company’s

existing seal assembly on the

RC20, RC25 and RC40 pump

models and no other part

changes are required.

The construction of the new seal

assembly uses the pump’s existing

cartridge, but incorporates a new

multi-spring design, a silicon

carbide (SiC) stationary face, a

carbon rotating face and FKM

O-ring elastomers that are rated

for use in temperatures as low as

-40°F (-40°C).

The new construction aims to

improve the seal’s ability to

handle extreme operating envi-

Simplified design for high

pressure applications

CIRCOR has improved its Allweiler

Emtec-C three-screw coolant

pump so that it can handle

pump outlet pressure needs

from 0 – 100 bar.

Introduced last year, the pump

deals with higher pressure applications

than before and aims to

offer manufacturers one simplified

pump designed for keeping abra-

Circor's Allweiler EMTEC-C now

handles pump outlet pressure needs

from 0 – 100 bar.

The new seal assembly for Ebsray’s RC

Series regenerative turbine pumps.

ronments, to work more effectively

during dry-run operation

and reduce emissions under

normal operating conditions. This

upgrade maintains the RC Series

compliance with Underwriters

Laboratories (UL) UL51, ATEX and

AS1596 operating codes.

Ebsray RC Series pumps with the

new mechanical-seal assembly

was on display at the recent

National Propane Gas Association’s

(NPGA) Southeastern Convention

& International Propane Expo,

held in Atlanta, GA, USA.

www.ebsraypumps.com.au

www.psgdover.com

sive machine chips, particles and

heat away from cutting surfaces

in machine tool coolant service.

Used in high-pressure machine

tool coolant service for metalworking,

transfer lines, grinding

and deep drilling machine applications,

the Emtec-C can be

customised for different sizes and

spindle pitch angles.

The enhanced Emtec-C is for

applications with good, limited or

poor lubricating liquids as well as

abrasive fluids. Its reversed

handing idler and integrated

thrust compensation system, seal

options, transparent backflow pipe

and extra-long piston are all

designed to improve durability

and keep flow loss low.

www.circor.com

Chesterton's high-pressure

packing technology

Chesterton’s DualPac 2212 is

a non-staining, high-pressure

packing that resists burning,

extrusion and needs fewer gland

adjustments than conventional

packing.

The DualPac 2212 is the second

product release with DualPac

The DualPac 2212 is designed for

demanding abrasive sealing

applications in rotating equipment.

Drive technology exhibited

at Water Equipment Show

Danfoss Drives exhibited its drives

for water and wastewater applications

the at the Water Equipment

Show in the UK in May.

Products included the Danfoss VLT

Aqua series of drives, which have

dedicated features for water and

wastewater applications, and the

Danfoss Vacon 100 Flow drives for

pumping applications.

VLT Aqua drives are designed for

AC-motor-driven water and wastewater

applications. Their design

uses the Danfoss back channel

cooling concept which reduces

the need for external cooling by

up to 90%. Aqua drives are

supplied in single-phase versions

with power ratings up to 37 kW

and three-phase versions with

ratings up to 2 MW.

braiding technology. It combines

a burn-resistant material (white)

on the sealing side, with a highly

resilient outer fibre (yellow). The

burn-resistant material conforms

to the pump shaft, while the resilient

fibre resists extrusion and

transfers radial load to the sealing

side of the packing.

The DualPac braiding technology

can be use as end-ring or sealring

by simply reorienting the

packing during installation. The

DualPac 2212 is designed for

demanding abrasive sealing applications

in rotating equipment

such as agitators, mixers, stock

pumps, sludge pumps, slurry

pumps, and process pumps.

www.chesterton.com

The Vacon 100 Flow drives

include dedicated application

menus for pump and other water

segment applications, integrated

two-zone PID control, and multimotor

control facilities provided

as standard. They are available

with power ratings from 0.55 kW

to 800 kW. The drives also include

integrated frost protection, start

and sleep boosting, soft pipe

filling which runs pumps at low

speed until the pipes are filled

and an anti-ragging function that

detects when a pump is blocked

and initiates a user-defined

cleaning sequence.

www.danfoss.com

Danfoss Drives were on show at the

Water Equipment Show in May.

www.worldpumps.com

We meet the diverse needs of customers,

with borehole electric pumps for the collection

of water from deep wells, horizontal pumps

for supplying the Water System.

www.caprari.com

6

Product news


New designs feature in

disc coupling range

Gardner Denver supplies

medical vacuum technology

Flender has added two new designs

to its N-Arpex couplings range.

including pumps, fans, compressors,

generators, turbines, and

paper and printing machines.

A new Flender conical bolt

connection for the plate packs is

designed for simple installation of

the N-Arpex couplings, especially

in high torque ranges. The new

addition enhances the power

density of the N-Arpex series.

SHJ Hospital Pipelines (SHJ) is using

Gardner Denver’s Elmo Rietschle

oil-free, screw vacuum pumps in its

piped medical gas systems.

SHJ supplies piped medical gas

systems for hospitals which incorporate

vacuum technology to

help draw off liquids that might

occur during surgery in theatres,

or from patients staying on wards.

Flender has extended its range of

N-Arpex couplings, first introduced

in 2017, with two new

designs featuring eight and ten

bolting points.

N-Arpex now covers a diameter

up to 988 mm and a torque up

to 2,000,000 Nm and has a

compact design and enhanced

bore capacities. A smaller

coupling transmits a higher

torque compared to its predecessor,

Arpex. The torsionally rigid

all-steel disc coupling is suitable

for use in drive applications

Intelligent operator panel

has improved functionality

The new functionality

of Siemens’

IOP improves

operation, monitoring,

diagnostics

and service of all

Sinamics G series

converters.

Siemens is improving the functionality

of its Sinamics intelligent

operator panel IOP-2 for Sinamics

G series converters with the inclusion

of the FW V2.3 SP1 firmware

update. The new functionality

aims to improve local setup, operation,

monitoring, diagnostics and

service of all Sinamics G series

converters.

The FW V2.3 SP1 update also

allows users to transfer special

application functions into the

project menu. These are then

With the two new N-Arpex

couplings, Flender has introduced

a modular system which increases

the number of available types and

reduces the number of components

required. The three standard

predecessor Arpex models merge

into one N-Arpex series. The new

series of couplings has also been

designed for use in potentially

explosive environments as defined

in directive 2014/34/EU and fulfil

the requirements of API610/

ISO13709 and API671/ISO10441.

www.flender.com

easily accessible from a list which

simplifies the setup of the

selected functions using the

Quick Start or Advanced Startup

options. As a result, users can run

their applications without

requiring any specialist knowledge

of the operating parameters.

The FW V2.3 SP1 upgrade offers

special applications and functions

for extended operation of the

Sinamics G120X. For pumps, this

includes de-ragging, pipe filling

mode, cavitation protection,

condensation protection and

hibernation mode. For fans, the

update includes flying restart, skip

frequencies, and automatic restart

functions. The basic requirement

for use of the new functions is

Firmware Pool Version V4.7 SP3.

www.siemens.com

To help deliver the medical gas

required, Gardner Denver has

supplied its S-VSI 301 screw

vacuum pump to SHJ. There is no

oil within the screw technology’s

pumping chamber and so the risk

of process contamination is

reduced to zero. The S-VSI screw

vacuum pump offers suction

capacities from 100 to 600 m 3 /h

and end vacuum of 0.01 mbar

Expansion of ISO

standard pump range

ITT’s Goulds Pumps has added

the IC Open (ICO) Impeller

i-FRAME pump to its portfolio

of ISO standard pumps.

Designed to handle chemical

slurries, waste liquids and challenging

food and beverage applications,

the ICO augments the

standard IC pump design with an

open impeller for handling solids.

This means that the ICO is also

able to deal with air- and gashandling

applications.

Available in 34 sizes and three

different materials, ICO is built to

ISO 2858 dimensions and meets

ISO 5199 standards. In addition to

the open impeller, the pump

features flanges drilled to DIN/ISO

or ANSI, plus a modular design of

four bearing frames, which

maximises interchangeability

across its 34 sizes.

The pump can deal with flows up

to 400 m 3 /hr and heads up to 150

There is no oil within the screw

technology’s pumping chamber

eliminating any risk of process

contamination.

(abs.) and has very low noise

levels because of the low rotational

speed of the screw

technology.

www.gardnerdenver.com

The ICO augments the standard IC pump

design with an open impeller

for handling solids.

m at temperatures ranging from

-40ºC to +280ºC and has a cyclone

seal chamber with improved heat

removal plus a patented spiral

groove design that removes solids

from the sealing area. Its heavyduty

i-Frame Power Frame helps

prevent pump bearing failures

and there is also an i-Alert 2

sensor for machine monitoring.

www.gouldspumps.com/ICO

www.worldpumps.com

PDMD-A10167-00-7600

ORIGINAL.

flender.com/original

8

Product news


Magnetic drive system for

electric submersible pumps

Upwing Energy, an artificial lift

technology company, and Mitsubishi

Heavy Industries (MHI) have

been selected by DeepStar, an

international offshore research and

development consortium, to

perform a feasibility and conceptual

study of Upwing’s magnetic

drive system (MDS) for electric

submersible pumps (ESPs).

The study, targeting deepwater

offshore and subsea well applications,

will assess the feasibility of

MDS, a new topology for downhole

rotating systems, which makes

artificial lift devices, such as ESPs,

more reliable and retrievable. MHI

will design and analyse the pump

and mechanical bearings for the

system. The study results will determine

the technical readiness of the

system.

The Upwing and MHI engineers

will start work in June and

complete the study by March 2020.

HNP Mikrosysteme offers

touch control option

German pump manufacturer HNP

Mikrosysteme’s MZR touch control

module is a new combined drive

and control module for miniature

positive displacement pumps.

Available through UK pump

supplier Michael Smith Engineers

(MSE), the MZR touch control

module complements the six

series of MZR micro-annular gear

pumps, also available through

MSE.

The module is designed for

handling many different

liquid media and viscosities

and delivers accurate,

pulse-free pumping.

Applications include

chemical, medical and

pharmaceutical processing

and biotechnology, as

well as ink and paint

The Upwing and MHI engineers will

start work in June and complete the

study by March 2020.

Its scope includes the three main

sub-assemblies of the complete

MDS pump system, including the

deployment and intervention

mechanism, magnetic drive system

and pump and bearing systems.

Herman Artinian, President and

CEO of Upwing Energy, said: “This

study will significantly advance the

technology readiness level of MDS

and will make ESPs the economically

preferred method of artificial

lift for deep water production.”

www.upwingenergy.com

www.mhi.com

dosing, portable power sources,

fuel cells and aerospace.

The module features a graphical

user interface, which supplements

the present control of MZR

dosing pumps via a laptop or PC

and can be used for most MZR

pump sizes and series with low to

medium power drives.

www.hnp-mikrosysteme.de

www.michael-smith-engineers.co.uk

Mikrosysteme’s

MZR touch control

module features a

clear graphical user

interface and can

be used for most

MZR pump sizes

and series.

Motor performance increase

from Caprari’s HT Bearing

Caprari’s MAC series submersible

motors have significantly

increased their performance

thanks to the high trust (HT)

bearing, which has been

patented exclusively by the

company. The HT Bearing

protects the pump and extends

the product life cycle, reducing

its environmental impact and

overall costs for the user.

The HT Bearing has margins

of tolerance that make

it extremely reliable in

all conditions. The

bearing is present in

MAC6 submersible

motors as well as in

the MAC8 and MAC10

larger-sized motors,

both available in cast

iron and stainless steel

versions.

Sensaphone’s

monitoring

system

The Sensaphone Express II monitoring

system from Sensaphone is

aimed at large water and wastewater

facilities.

The Express II system is expandable

to include up to 40 channels

and so is designed for facilities

that require many monitoring

points or for operations planning

future growth.

The system allows users to

remotely monitor for changes in

environmental conditions and

equipment performance around

the clock and easily integrates

with existing floats, pump alarm

outputs and level transducers.

Housed in a NEMA-4X enclosure,

the Express II is protected from

dust, dirt and moisture both

indoors and out. Operators can

increase monitoring capability

This special patent bearing

improves axial load resistance.

The HT Bearing’s performance

provides the motor with a structural

oversizing with respect to

the actual thrust that the wet end

generates, even during operational

changes. To achieve this

result with the new products, the

cage, supports and skids have

been completely redesigned.

www.caprari.com

Maximum resistance and extreme reliability for

Caprari's MAC6, MAC8, MAC10 submersible motors.

The Express II system is expandable to

include up to 40 channels.

with expansion input and output

cards. The LCD display shows

continuous input status and

assists with keypad programming

for simple set up. The internal

rechargeable battery backup

provides 12 hours of continuous

monitoring and alerts in the event

of a power outage.

Water facility operators can use

the Express II system to monitor

the status of pumps, tank levels,

indoor and outdoor temperature,

humidity, ventilation, carbon

dioxide and power failure.

www.sensaphone.com

www.worldpumps.com

10

Product news


High stand demand for

exhibtion in IREC 2019

There has been a high demand

for stands at the VDMA’s fourth

International Rotating Equipment

Conference – Pumps, Compressors

and Vacuum Technology, with

50% of the stands already booked

for the accompanying trade

exhibition.

The conference will take place on

24 and 25 September 2019 in

Wiesbaden, Germany. Christoph

Singrün, managing director of

VDMA Pumps + Systems as well

as Compressors, Compressed Air

and Vacuum Technology and

promoter of the conference, said:

"We are delighted at the brisk

demand and the fact that companies

are accepting our offer to

register online for a stand."

In addition to the trade exhibition,

the conference also offers opportunities

to participate as a sponsor

or as a visitor to the extensive

conference programme. This

Tsurumi releases smart

controller

Tsurumi recently presented its

Tsurumi Connect smart controller

system for the digital networking

of pumps and other electrical

systems in the water logistics

sector.

Tsurumi Connect consists of a

small hardware box which is

connected to the pump via the

motor protection plug or a

control cabinet. It records and

analyses the rated flows, controls

the aggregate automatically on

request and prevents wrong

direction of rotation or

over-current.

The box is connected to the

Tsurumi Connect Cloud via

mobile phone, WiFi or LAN,

either permanently or as a

result of an alarm. In case the

connection fails, the box can

Visitors to the last VDMA conference

in 2016.

includes almost 70 presentations

in 28 sessions. The format of the

2019 conference will remain the

same as it was in 2016, with two

days of technical lectures and an

accompanying exhibition.

The previous International

Rotating Equipment Conference in

2016 played host to around 750

participants from more than 30

countries.

www.introequipcon.com

Tsurumi Connect networks all electrical

devices at a construction site.

(Image: Tsurumi)

record data in offline mode for

30 days.

Devices from other suppliers can

be connected to the system and

data from various sensors

recorded, analysed and accounted

for by the control logic.

www.tsurumi.eu

Single-use pump

for low flow rates

Quattroflow has extended its line

of single-use pumps with the

release of the QF30SU single-use

diaphragm pump for low flow

rates.

The QF30SU has flow rates from

0.06 to 30 lph (0.02 to 8 gph) and

is designed for pharmaceutical

and biotech applications that

require lower flow rates.

QF30SU pumps feature a replaceable

polypropylene (PP) wetted

pump chamber that can be

replaced without special tools.

The simple disposal of the pump

chamber eliminates cleaning and

cross-product contamination risk.

It has a high turndown ratio at

500:1 and so can optimise chromatography,

TFF and virus filtration

operations. It also features a

linear flow performance, is retrofit-

Integrated skid for reduced

stress on fracking pump

The SPM EXL Frac pump from

Weir Oil & Gas is a quintuplex

pump designed for harsh fracking

conditions.

The SPM EXL Frac pump has a

frame which is constructed with

an integrated skid designed to

reduce vibrations across the frame

and increase stiffness, thus

reducing stress on the weld. The

frame also reduces the number of

internal groove welds to reduce

cracking. All welds are located on

the outside of the frame to make

them more accessible.

To address the higher stresses put

on the gear system from the high

torque encountered when operating

at high rod loads, Weir

redesigned the gears and pinions

to provide greater surface area

contact on the bull gears and so

reducing the risk of stripping

them.

Quattroflow's single-use pumps primarily

serve the biotech and pharmaceutical

industries.

table to Quattroflow QF150 drives,

and has a maximum pressure of

4 bar (58 psi). Quattroflow pumps

now offer eight sizes covering a

flow range from 0.06 to 16,000

lph (0.02 to 4,227 gpm). The

single-use pumps primarily serve

the biotech and pharmaceutical

industries that require gentle

displacement, product safety,

purity and accuracy.

www.quattroflow.com

Additionally, the new pump

reduces the amount of on-site

maintenance required for operators

as Weir has introduced the

SPM Everbore, a hardened steel

packing bore which eliminates

wash boarding and protects

against packing bore wash

eliminating the need to re-sleeve.

The bore is designed to last the

lifetime of the fluid end and eliminate

maintenance in the red zone.

www.global.weir

The SPM EXL Frac pump is designed to

reduce vibrations across the frame.

www.worldpumps.com


Product news 11

Fixed-speed or VSD

Low-pressure blowers

Atlas Copco’s latest addition to

its low-pressure blowers is the

ZL2 11 to 45 kW range, which

has a choice of fixed-speed or

VSD versions.

The ZL2 blowers provide either

pure mechanical basic units

employing dial gauges for pressure

reading, or with an integrated

VSD inverter and intelligent

Elektronikon control. The new

units are available in seven power

ratings; 11, 15, 18, 22, 30, 37 and

42 kW, with corresponding capacities

from 805 to 1375 m 3 /hr relevant

to working pressures from

300 to 1000 mbar (g).

The ZL2 blower design features a

traditional tri-lobe element, with

specially selected strong bearing

and gear set, for low-pressure

applications within demanding

environments, such as pneumatic

conveying, wastewater treatment

and the chemical industry.

Cavitation effects on video

Blackmer, part of PSG, a Dover

company and specialist in positive

displacement, regenerative turbine

and centrifugal pumps, has created

a new video explaining cavitation.

The video illustrates why cavitation

occurs, the potential harmful

effects it has on pumping components

and possible solutions to

avoid this common pumping challenge.

The video is available on the

Blackmer YouTube channel.

Blackmer says that its Cavitation

Suppression Liner can deal with

the challenges of excessive cavitation.

Available as a component on

Blackmer CRL, LGL, SGL, XL, XLW

and TLGF Series sliding vane

pumps, the liner eliminates the

vibration, excessive noise and

pump-component damage that

from cavitation. The design creates

internal recirculation jets that break

apart vapour bubbles before implo-

The ZL2 blower design is for low-pressure

applications within demanding

environments.

The blowers can function at high

ambient temperatures or high

altitudes without issue. Forced

ventilation keeps the internal

temperature of the canopy close

to ambient temperature. Installed

sensors constantly monitor pressure

and temperature.

Feedback on the fixed-speed ZL2

units’ performance is provided by

front-panel mechanical gauges,

which indicate discharge pressure

and inlet filter condition.

www.atlascopco.com

The video shows why cavitation occurs,

its potential harmful effects.

sion. While the vapour levels are

not reduced, the size of each

vapour bubble becomes a fraction

of what it would have been.

The Cavitation Suppression Liner

also allows a controlled amount of

fluid at discharge pressure to bleed

back toward the suction of the

pump. This breaks the larger

vapour bubbles into smaller ones

before they can implode, resulting

in less noise, less vibration and less

wear.

www.blackmer.com

www.psgdover.com

Wangen celebrates 50th

anniversary

This year sees the 50th anniversary

of German pump manufacturer

Pumpenfabrik Wangen

GmbH. It has grown from a small

family business in the agricultural

sector in 1969 to an international

company with a workforce of

more than 200 staff in 2019.

The company takes its name from

the location of its headquarters,

development and production site

in Wangen in the Allgäu region of

Germany.

Today, Wagen supplies

progressing cavity pumps and

twin-screw pumps for many

different industry sectors worldwide

including agriculture, biogas,

sewage treatment and environmental

technology, food, chemicals

and pharmaceuticals.

Sulzer opens applications

for 2019 intern programme

Sulzer will once again run its

summer intern programme for

young engineers in education,

allowing college students to

receive hands-on experience in

turbomachinery repair.

The internship will take place in

Houston, Texas and the 12-week

internship will run from May to

August. It will allow students to

learn and gather hands-on experience

with rotating equipment

such as turbines, compressors,

motors, generators and pumps, as

well as work with skilled shop

mechanics, machinists and technicians.

In addition, the interns will

be assigned one or multiple engineering

projects based on the

skills acquired in the shop, such

as designing new inspection

equipment or techniques that

improve process flow.

The summer intern programme

helps Sulzer to discover promising

young engineers and gives them

Wangen began as a small family business

in the agricultural sector in 1969 and

is now an international company.

Wangen’s first pumps, the Types

80 A & B were agricultural pumps

which were placed under a slurry

tank and so needed less space.

The company entered the international

market in the early 1970s

and survived the difficult times in

the 1990s. It became a global

company with the establishment

of Wangen America Inc. in 2014.

www.wangen.com

the chance to become full-time

employees at Sulzer upon

completion of the programme.

Jennifer Gaines, mechanical

design engineer at Sulzer, and

responsible for running the internship

programme, commented:

“Sulzer offers a unique platform,

where students can learn how the

engineering industry works and

show their talents and skills to a

leading business, like Sulzer.”

www.sulzer.com

Interns will gain hands-on experiences

with rotating equipment including

turbines, compressors, motors generators

and pumps.

www.worldpumps.com

12 Product focus


Corrosion-resistant pumps

Corrosion-resistant

submersible success

P

olluted water and run-off from mines and quarries require pumps

that can handle highly acidic liquids. To meet this challenge,

Tsurumi has continued developing its range of submersible

pumps that are made of 316 stainless steel casting.

Since its foundation in 1924, the

Japanese company Tsurumi Manufacturing

Co., Ltd. has been

engaged in the manufacture,

supply and sales of pumps, environmental

devices and related

equipment, with submersible

pumps being key products.

As well as producing general

drainage pumps, Tsurumi puts

great effort into applications for

difficult-to-handle liquids, such as

corrosive and high temperature

liquids and seawater. The company

is now launching its LH-14/

LH-W-14 series corrosion-resistant

pumps, which are suitable for

drainage of corrosive liquids

in mines.

Tsurumi’s submersible corrosionresistant

pumps are made of 316

stainless steel, allowing the LH-14/

LH-W-14 series to handle corrosive

acidic liquids and chemical liquids

with low pH values. These pumps

use highly corrosion-resistant materials

for all parts that are exposed

to fluids, including the impeller,

pump casing, motor frame, outer

cover, strainer stand and flange,

so that the pumps are thoroughly

protected from corroding.

Stainless steel

Tsurumi puts particular effort into

developing submersible pumps

made of 316 stainless steel casting.

Recently, polluted water and

run-off from mines and quarries

have been cited as social problems

in many countries, to the point

that demand for pumps that can

handle these liquids has been

increasing year by year. In fact,

more than 40% of the run-off from

mines is strongly acidic with a pH

value of less than 4. To meet this

application, Tsurumi has continued

development of all stainless steel

pumps that are made of 316

stainless steel casting.

Because they are made of stainless

steel casting, the pumps are

resistant to wastewater containing

abrasive substances, as well as

corrosive liquids. These pumps

have been designed to deliver the

durability needed in harsh fields

where pumps made of aluminium,

stainless steel and cast iron suffer

damage in a matter of weeks, if

not days. Stainless steel casting

considerably improves product

reliability in comparison with

stainless steel in applications

involving heavy-duty work. Tsurumi’s

all stainless steel pumps are

intended for service in harsh

environments such as mines and

quarries and can cover a wide

range of applications.

The LH-14/LH-W-14 series is a

submersible stainless steel casting

high head corrosion-resistant pump

designed for handling aggressive

and corrosive liquids. The all wetted

parts are made of 316 stainless

steel, enables it to withstand

demanding conditions found in

construction, aggregate and

mining applications. Being the

pump cylindrical and slim, it can

be installed in a well casing for

deep well dewatering.

The center flange construction

assures a stable installation even if

fixed by the discharge pipe.

The pump incorporates seal pressure

relief ports that prevent the

pumping pressure from applying to

the shaft seal. Furthermore, to

endure even extended operation at

low water level, these pumps

feature flow-thru design that

forcibly cools down the motor.

LH-14/LH-W-14 series all stainless steel pumps, suitable for drainage of

corrosive liquids in mines.

pH Values and Corrosion Resistance of Tsurumi Pumps. The data is a rough

indication for sulfuric acid (H2SO4) and sodium hydroxide (NaOH). Metals are

affected by the type of acid/alkali, seal material, painting and abrasive environment.

www.worldpumps.com


Product focus

13

Model

Discharge Bore

Motor Output

Pumping Fluid

Impeller

Impeller

Pump Casing

Material Motor Frame

Shaft

Rubber Parts

LH-14 (Single Impeller)

LH-W-14 (Dual Impellers)

80 - 200 mm

11 - 110 kW

Corrosive Liquids

Closed

316 Stainless Steel Casting



316 Stainless Steel

FPM (FKM)

LH-14/LH-W-14 series specifications.

LH-14 series (Single impeller).

The LH-14 series has a single

impeller, and the LH-W-14 series

has dual impellers.

The LH-14 and LH-W-14 series

are available in a wide product

lineup, covering a discharge bore

diameter of 80 to 200 mm,

motor output of 11 to 110 kW,

and maximum head of

51.8 to 184 m.

LH-W-14 series (Dual impellers).

These pumps, as well as Tsurumi’s

general drainage pumps, are

equipped with an anti-wicking

cable, motor protector, SiC dual

inside mechanical seals with silicon

carbide faces, and Oil Lifter, with

extensive research and a track

record accumulated over many

years combined into Tsurumi

original technologies.

The material used for rubber parts

such as the mechanical seal, oil

seal, O-ring and packing, is FPM

(FKM), which provides high resistance

to heat and chemical exposure.

With these features, Tsurumi

pumps are designed to provide

high reliability and excellent

durability, enabling continuous

operations for long periods.

Experience and expertise

Making skillful use of the experience

and expertise of many years,

Tsurumi focuses on the development

of products that can withstand

demanding applications.

Tsurumi offers a range of products

that can serve in harsh conditions

such as draining high temperature

liquids and seawater as well as

corrosive liquids. To order our products,

please contact us direct. •

The OO series is indicated with

Tsurumi’s series code in this text.

intsales@tsurumipump.co.jp

www.tsurumi-global.com

The best way to stay up-to-date with the latest

business and technology developments in the pump

industry.

Featuring daily news updates, in-depth features, blogs,

downloads, and much more, our online archive gives you

instant access to a wealth of essential information.

Join our growing online audience today.

www.worldpumps.com

www.worldpumps.com

www.worldpumps.com

14

Application


Food & beverage

Sealing success

eliminates rebuilds

A

US

manufacturer and blending facility of liquid and dry

sweetener products was faced with mounting costs and

downtime, linked to pump failures in its liquefier unit.

John Crane recommended its Dynamic Lift Up-stream

Pumping seal face technology as a solution.

A manufacturer and blending facility of

liquid and dry sweetener products,

located in upstate New York, was faced

with mounting costs and downtime,

linked to pump failures in its liquefier

unit. The facility’s technicians narrowed

the problem to its batch-run sucrose

blending circulation pump, critical

to liquefying white and brown

sugar, organic and kosher products,

fructose, maltitol, corn syrup and

invert syrups.

The process mixer, which runs an average

of six batches daily, five days per week,

was being hampered by crystallized

liquid sugar inside the pump, causing

shear damage and broken seal

components. The food processor wanted

to eliminate the continuous pump

rebuilds, as well as downtime from seal

and pump part repairs, which cut significantly

into the company’s profit margin.

Dynamic lift

The company looked to John Crane, one of

its seal suppliers, for a solution to the solidified

sugar problem that was causing the

seal-related pump failures. John Crane

The inside of a manufacturing site. The highly-engineered seal face technology, developed by John Crane, addresses the most difficult sealing problems in

unique pump applications.

www.worldpumps.com


Application 15

recommended its Dynamic Lift fluid seal

technology as a solution, to not only solve

the crystalized sugar problem, but also to

eliminate the potential of bacterial growth

in the seal support system.

The John Crane

Type 5620USP

(Dynamic Lift/

Upstream

Pumping) seal

design with a noncontacting

face

was used in this

application.

The seal is constructed with FDA

Generally Recognized as Safe (GRAS)

materials, as well as FDA food-grade elastomers.

The seal uses a spiral grooved

seal face and a pure water barrier fluid

to produce a lubrication film at higher

pressure than the process fluid. This

allows the inboard seal faces to run in a

continuous flow of very clean higher

pressure water. This lubricates the

inboard seal faces and effectively

prevents the sucrose from drying or

changing viscosity.

That viscosity change would be

expected with a conventional dual seal

because heat of friction resulting from

contacting inboard faces would have a

detrimental effect on the sucrose

product fluid. The physical envelope of

“The physical envelope of the Dynamic Lift

seal was designed to retrofit into a big

bore version of the existing American

National Standards Institute (ANSI) pump.”

the Dynamic Lift seal was designed to

retrofit into a big bore version of the

existing American National Standards

Institute (ANSI) pump.

Failure eliminated

Since installation of the Dynamic Lift

seal, the pump has not failed because

the primary root cause of failure has

been eliminated by the dynamic lift seal

and the self-sustained lubrication flow

that the seal produces. Since the installation

of the seal the maintenance

personnel have not been called in.

Outage avoidance

MTBR at the plant’s liquefier pump has

increased from a low of one month to

more than 30 months since installation

of the Dynamic Lift seal. Approximately

12 pump-seal-related outages have been

avoided because of

the seal upgrade.

The food processor

is saving $1,000-

$2,400 in seal repair

costs per outage, a

total saved of

$10,000-$15,000 for

this liquefier process pump to date. The

company’s engineering team rate the seal

performance a nine on a scale of one to

10, and stated, “It solved a problem, and is

performing well.”

•

www.johncrane.com

Authors

Sam Ajram, global product manager, John Crane

Eric Motschwiller, sales representative, John Crane

Mike Kalodimos, global product manager,

John Crane

Reliable Flowrox Pump Technology

For transferring, dosing and metering

With Flowrox peristaltic pumps you

don’t need to worry about overheating

IIoT Connecting

Your Equipment:

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F L O W ROX.C O M

Contact us for more information:

WOPU_adv.indd 2 www.worldpumps.com

20-06-19 14:46

16

Application


Water & wastewater

Crop yield increase

by flood protection

V

ietnam

is experiencing dynamic economic growth in

its agricultural products, but this is being threatened

by increased flooding. As part of a package to deal

with climate change challenges, ANDRITZ is supplying

concrete volute pumps for a flood protection system.

In 2017, Vietnam achieved exports in the

amount of US$36.5 billion for agricultural

products. The country in southern Asia is

now aiming at 3.05% growth to reach an

export figure of up to US$40.5 billion for

2018. These figures illustrate the highly

impressive transition in Vietnam from

being a country plagued by famine to

one of the world’s largest exporters of

foodstuffs.

This transformation began in the 1980s

when Vietnam underwent a drastic

change of role from importer to

exporter. As a result of trade liberalization

and agricultural reforms, the value

of agricultural exports rose significantly.

Today, Vietnam is the top exporter

worldwide for black peppercorns and

cashew nuts. In addition, the country

ranks among the top 10 exporters of

coffee, coconuts, rice, rubber, sweet

potatoes, and tea.

within four to five months during the

monsoon period, mainly in the northern

part of the country.

The south easterly monsoon occurring

during this period brings severe weather

every year. In particular, heavy and also

incessant rain results in rivers and

streams bursting their banks regularly

and causing flooding.

In 2008, flooding in Vietnam cost

hundreds of lives. The capital Hanoi,

where 20 people died in the floodwaters

or after being struck by lightning, was

also particularly badly hit. In addition to

the lives lost, the severe weather resulted

in a shortage of drinking water and basic

foodstuffs. Following heavy rainfall in

2013, more than 30 people lost their

lives and over 100,000 houses were

flooded.

In October and November 2016, Vietnam

was struck by a total of three exceptionally

heavy storms. Once more, flooding

claimed 40 victims and again destroyed

100,000 houses as well as 1300 hectares

of paddy fields. The figures for 2017

were similar.

Climate change is making this situation

continually worse. According to current

forecasts by the IPCC (International Panel

on Climate Change), climate change will

increasingly affect countries on the

equator. In this respect, Vietnam is

ranked among the countries with the

highest risk. At an average emissions

level, the scenario for 2080 to 2099 is

Climate change

In view of this, agriculture is not just an

important part of the GDP, but also

continues to be one of the country’s

most important employers. However, it is

confronted time and time again with

adverse weather conditions. With a total

annual precipitation of 640 billion m 3 ,

Vietnam is certainly one of the rainiest

countries on earth, but this rainfall is not

always distributed ideally over time and

regions. 75 - 85% of this volume falls

Based on the Kaplan turbine design principle, which ANDRITZ has been installing successfully all

over the world since 1926, the technology for concrete volute pumps was adapted and carefully

considered concreting procedures were developed that ensure rapid execution and exact results.

www.worldpumps.com

92nd Annual Water Environment Federation

Technical Exhibition & Conference

McCormick Place Chicago, Illinois

Conference: Sep 21 — 25, 2019

Exhibition: Sep 23 — 25, 2019

REGISTRATION

OPENS APRIL 16.

BEST RATE

DEADLINE: JULY 12

www.WEFTEC.org | #WEFTEC19

18

Application


Concreting on site is the most economical

solution first and foremost for particularly

large concrete volute pumps used to transport

brackish and sea water, while steel segments

pay off especially with a small number of small

pumps that do not have to convey sea water.

Otherwise an additional, expensive coating or

a construction made of stainless steel would be

needed.

Vertical line shaft pumps could also be used for the Doan Ha pumping system. However, the general

framework of this project makes concrete volute pumps much more suitable. This is due to the

significant advantage they provide in applications with high flow rates and very low heads. As a

result of the special design between the inlet and outlet, the pump is extremely compact, leading to

significantly lower construction costs for the overall plant.

predicted as having even higher annual

rainfall in the months that already experience

the heaviest rain. This was

heralded only recently in the summer of

2018 by the tropical storm Son Tinh,

which caused numerous floods.

Tea business

As a result,

different strategies

have been developed

in the past

few decades to

deal with these

climate challenges,

but also with the

dynamic economic

growth in the

water sector. In

addition to refurbishment and expansion

of existing irrigation systems, these strategies

also include building flood protection

systems.

Among them is the pumping system in

the Thanh Thuy district of PhuTho Province.

PhuTho is situated in the north

eastern part of the country and is considered

one of its poorest regions. The most

important industry in the region is the

cultivation of tea and produces around

100,000 tons per annum, 80,000 tons of

which are exported.

In order to increase this productivity and

crop yield to improve not only the living

standards and the ecological environment,

but also to reduce poverty for

farmers in the affected areas a new

pumping station, Doan Ha, is to be built.

It will have the capacity to reliably

irrigate up to 672,000 m 2 of paddy

and creating an infrastructure for the

formation of a large sample field. Further,

“At an average emissions level,

the scenario for 2080 to 2099 is predicted

as having even higher annual rainfall in

the months that already experience

the heaviest rain.”

in addition to irrigation, the required

two pumps to be installed in the

station will also be able to drain up to

2,122,000 m 2 of agricultural land if

necessary.

Order awarded

After coming out best in the review

process for the tender in terms of

meeting the project requirements and

providing detailed proof ANDRITZ was

awarded the order to supply two

concrete volute pumps together with

the complete electromechanical equipment

for the pumping station Doan Ha

in a joint venture with a Vietnamese

partner, Haiduong pump Manufacturing.

,JSC (Hapuma)

No newcomer

The international technology group

ANDRITZ is not a newcomer to Vietnam. In

addition to equipping numerous hydropower

plants, such as Chau Tang, Nam Na

1 or Song Lo 6, ANDRITZ also supplied ten

vertical line shaft pumps in 2018 for the

largest flood protection plant in Vietnam,

Yen Nghia, near Hanoi.

The station and its

pumps were

specially designed

and built for flood

protection purposes.

This means that the

pumps are only

activated in case of

need and then have

to pump away large

amounts of water at

low head in the

shortest possible time. Vertical line shaft

pumps could also be used for the Doan

Ha pumping system.

However, the general framework of this

project makes concrete volute pumps

much more suitable. This is due to the

significant advantage they provide in

applications with high flow rates and

very low heads. As a result of the special

design between the inlet and outlet, the

pump is extremely compact, leading to

significantly lower construction costs for

the overall plant.

Based on the Kaplan turbine design principle,

which ANDRITZ has been installing

www.worldpumps.com


Application 19

successfully all over the world since

1926, the technology for concrete volute

pumps was adapted and carefully

considered concreting procedures were

developed that ensure rapid execution

and exact results. The concrete volute

pump consists basically of the concrete

casing and the removable pump unit.

This part can be removed easily for

maintenance purposes.

No maintenance

The concrete casing is resistant to any

kind of water and requires no maintenance

whatsoever. Both technologically

and economically, concrete volute

pumps are the best solution when it

comes to transporting large volumes

of water. The concrete casing has a

long life cycle and is resistant to

erosion as well as to brackish and

sea water. And the material costs are

also low.

There are three different ways of building

a pump of this kind: concreting on site, a

construction with steel segments, or a

design with prefabricated elements.

The choice of construction is not arbitrary

but is defined by the respective requirements

of the pump in each case and the

general framework of the project.

Concreting on site is the most economical

solution first and foremost for

particularly large concrete volute pumps

used to transport brackish and sea water,

while steel segments pay off especially

with a small number of small pumps

that do not have to convey sea water.

Otherwise an additional, expensive

coating or a construction made of stainless

steel would be needed.

Prefabricated

For the design with prefabricated elements

as used in Doan Ha, the pump volute is

divided into a certain number of concrete

blocks. The individual parts are manufactured

according to ANDRITZ’s specification

in a local Vietnamese concrete factory and

then forwarded to the project location and

assembled directly on site.

The advantages of this design are that

there is no particularly exact and timeconsuming

work to be performed on the

site and that the concrete volute surface is

resistant to brackish or sea water, providing

the same results as concreting on site.

The concrete volute pumps designed

especially for the Doan Ha project each

achieve a flow rate of 12.5 m 3 per

second at a maximum head of 8.15 m.

Each of the pumps has a 1,000 kW

motor for this purpose. The pumps

reach an efficiency of up to 88%, while

the motors can achieve efficiencies of

up to 86% at 100% output.

The pumps are designed for transporting

natural water, i.e. river water

and contaminated water, i.e. flood

water. Both motors and pumps are

monitored fully automatically by a

monitoring and control system.

The pumps and their components are

designed for more than 70,000 operating

hours. Completion including

delivery and erection of the pumps in

the pumping station is scheduled for 18

months after signing of the contract,

which is mid-2020.

•

www.andritz.com/pumps

Video

For more information on concrete volute

pumps, watch this video: https://www.andritz.

com/products-en/group/pumps/vertical-volute

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WOPU_adv.indd 2 20-06-19 14:39

www.worldpumps.com

20

Application


Oil & gas

Multi-phase system

cuts separation cost

K

eeping

development expenses of new fields down is

difficult when separation technology required for gas,

water and oil incurs high costs. The Palogue oil field in

southern Sudan installed a multi-phase pumping system,

eliminating the need for separation in the oil field.

In the Palogue oil field, the gas volume

fraction (GVF) is on average over 80%

with sand fractions of up to 3%. In order

to be able to efficiently convey the

multiphase mixture, 20 multi-phase

pumps were installed, each directing the

yield of up to 24 boreholes to a central

separator station, some of them over 15

km away.

High reliability

To protect the pumps against solar radiation

which can heat the surface up to

70ºC, and protect them from flooding

after heavy rainfall, the pumps were

equipped with roofs and mounted on

elevated foundations. In order to achieve

the highest possible operational reliability

of the remote monitored and

controlled pump systems, an extensive

control system with connection to the

supervisory process control system was

installed. A particularly robust version of

the pump system was used.

As worldwide demand for oil and gas

continues unabated, extraction companies

need to be able to tap into hard-to-

Netzsch multi-phase pumps can eliminate costly separation in the oil field.

www.worldpumps.com


Application 21

Multi-phase pumps enable the transport of oil mixtures with fluctuating and even very high gas, water or sand content.

reach oil reserves, optimise existing

fields and deal with rising cost pressures.

This is particularly important with

sources in which heavy oils with

extremely high viscosities and high

solids content are produced.

High demands

The development of oil fields with

heavy oils or bitumen as well as oil

fields, located in

inaccessible areas,

places ever higher

demands on the

conveying equipment

and the

pump technology.

The conveying

systems must be

matched to the

media and

ambient conditions.

Netzsch Pumps & Systems has

responded to this need to deal with this

by developing a range of specialised

positive displacement pumps, especially

multi-phase pumps, which are particularly

cost-effective in oil field development

where high demands are put on

conveying equipment and pump technology.

Netzsch’s multiphase pump has

been specifically developed to deal with

this type of application. It manages

mixtures of oil, water and gas with sand

fractions and achieves delivery rates of

up to 800 m³/h.

Multiphase mixtures are pumped directly

to a central treatment station and the

complete separation technology at the

borehole can be omitted. Thanks to the

low shear forces and the low pulsation,

there are hardly any emulsion effects

"NETZSCH Pumps & Systems has responded

to this need by developing a range of

multi-phase pumps, which are particularly

cost-effective in oil field development."

during transport. At central separators,

the media phases can be easily separated,

significantly reducing infrastructure

costs for the entire field. This means that

the use of the gas share becomes more

economical, avoids the flaming of gas in

the fields and contributes to environmental

requirements.

The very high costs of separation technology

for gas, water and oil separation

can be drastically reduced by installing a

multi-phase pumping system because

the multiphase mixture can be pumped

from different wells directly to a central

treatment station. This eliminates costly

separation in the oil field.

Reducing costs

In addition, oil yield is increased with

multi-phase pumps. Normally, downhole

pressure must overcome the pressure

drop to the nearest separator

station, which

reduces the flow

rate of the oil

well. If a multiphase

pump is

installed, it will

take over the

transfer to the

next separation,

reducing the

borehole pressure

and thus increasing the oil yield.

The multi-phase pumping system must

be able to cope with highly fluctuating

delivery conditions. Thus, the ratio

between gas and oil changes continuously,

inlet pressures up to 100bar and

100% gas-rich phases are possible. Even

with sand shares of 3%, long lifetimes

are achieved.

•

www.netzsch.com

www.worldpumps.com

22

Feature


Water & wastewater

Considerations in

pump selection

C

hoosing the right pump for the right job requires some

basic knowledge and understanding of the task and

situation in hand. This article describes the main

factors to be considered when selecting a submersible

dewatering pump.

If the suction lift required for dewatering

using a surface pump is more than

about 7 m, a submersible pump would

normally be used instead. Designed to

be totally submerged, it uses the proximity

and pressure of the surrounding

water to aid fluid movement through

the hose, so less energy is needed.

As well as clean or dirty water, submersible

pumps will handle liquids with high

suspended solid loads. They can work

continuously at great depths, in harsh

environments and even under ice.

Most are centrifugal pumps, in which the

rotation of an impeller creates low pres-

sure at the inlet and draws in the liquid.

Pneumatic submersible pumps offer a

choice between centrifugal and

diaphragm mechanisms. With the pneumatic

submersible pumps, the air-driven

action of pistons on flexible diaphragms

sucks liquid in and then pushes it

through the pump.

In remote locations requiring a portable power supply, the decision is usually between pneumatic and hydraulic pumps.

www.worldpumps.com


Feature 23

There are three main categories of

submersible dewatering pumps:

• Electric – powered by mains electricity

(smaller-capacity pumps may alternatively

be supplied by a portable

generator)

• Pneumatic – powered by a portable

air compressor

• Hydraulic – powered by a portable

generator

Here are five key considerations which

will help to choose the right submersible

dewatering pump for your

application:

Why electric?

If mains electricity is available, an

electric pump will be the best choice

in most cases. This is the simplest,

most energy-efficient and most

economical approach. Electric submersible

pumps provide high power in light

and compact packages. They are easy

to transport, handle, install and operate,

with low maintenance requirements

and simple servicing procedures further

reducing the cost and effort involved.

When dealing with large volumes of

liquid, requiring rapid flow rates, electric

pumps are really the only option. Their

additional advantages include a small

footprint, which is perfect for reaching

into restricted spaces. Emission-free

operation means they are ideal for work

in mines and tunnels, while their quiet

running is welcome in residential areas.

The main limitation is their reliance on

a mains electricity

supply, although small

models can be run

economically from a

portable generator.

However, as supply

networks expand and

strengthen to meet

increasing demand for

clean power, the number of sites

without mains electricity is decreasing.

It is worth noting that a fluctuating

mains supply can cause problems in

some remote areas. Look for a pump

whose motor and starter are equipped

with inbuilt electrical protection against

varying voltage, phase failure and

human error.

Weda electric submersible pumps are designed to perform dewatering tasks efficiently.

Why pneumatic?

A pneumatic submersible pump is the

obvious choice where an air compressor

is already present on site to power

drilling equipment. Another important

application is in potentially flammable

“Where mains electricity is unavailable,

a portable generator and hydraulic

pump are the sensible option.”

situations, where sparks must be

avoided, as the pump itself has no electrical

components.

Provided that the pump is well separated

from its engine-powered

compressor, there is no problem with

exhaust emissions and leakage of fuel or

oil. This pump category also has the

advantage of independence from mains

electricity, so it can be used in remote

locations.

For general dewatering, choose a centrifugal

pneumatic pump. For abrasive,

acidic, corrosive or flammable liquids, or

higher solid concentrations,

select the

diaphragm type.

Why hydraulic?

While pneumatic

pumps have advantages

in specific

circumstances, it would not be costeffective

to invest in an air compressor

solely to provide pumping on remote

sites. Where mains electricity is unavailable,

a portable generator and hydraulic

pump are the sensible option.

Models with spark-proof hydraulic

motors can be chosen if flammable

liquids are an issue. If necessary, the

www.worldpumps.com

24

Feature


hydraulic power pack can be set up at

some distance from the pump to minimise

atmospheric pollution and avoid

fuel or oil leaks in the working area.

Larger hydraulic submersible pumps can

be especially useful for dealing with the

biggest suspended particles.

What’s in the water?

The nature of the liquid being pumped

has a major bearing on selection of

pump types and models. Although they

are all described as submersible dewatering

pumps, they can be broadly

subdivided into the following groups:

• Dewatering or drainage pumps – for

clean or dirty water, possibly containing

small solids such as sand and clay

• Sludge pumps – for viscous mixtures of

liquids and solids, including soft wet

mud and by-products of industrial or

refining processes

Submersible pumps use the proximity and pressure of the surrounding water to aid fluid movement

through the hose, so less energy is needed.

essarily expensive, while an undercapacity

pump will struggle to do the

job and will wear out quickly. It must

have enough capacity to cope with fluctuations

in water level, versatility may

also be needed to deal with the

demands of different sites.

Conclusion

As long as the pumping site has access to

mains electricity, the needs are most likely

to be met by an electric submersible

pump. The main advantages of this category

include simplicity, energy efficiency,

low maintenance costs and portability.

• Slurry pumps – for semi-liquid mixtures,

typically loaded with fine particles of

materials like manure, cement or coal

In addition to the liquid’s general

composition, as

summarised

above, the

concentration and

size of its

suspended particles

needs to be

considered. The

largest solids are

best handled by

slurry pumps.

Account should also be taken of the

liquid’s pH, temperature and chemical

content.

The more difficult the liquid, the greater

is the need for protection through

features such as hardened, clog-free

impellers and wear-resistant rubber

diffusers. In addition, seek a high-quality,

durable construction which is resistant to

corrosion and rough treatment.

Performance needs?

In terms of capacity, the pump’s performance

must match the amount of liquid

required to be moved and the speed

with which that movement is needed.

An overly specified model will be unnec-

The manufacturer’s published pump

curve, showing head height against flow

rate, is one of the first things to check.

Make sure it covers the duty point

required.

“In terms of capacity, the pump’s

performance must match the amount

of liquid required to be moved and

the speed with which that movement

is needed.”

The prospective pump supplier should

be given the following details of the

application:

• Flow requirement

• Head requirement

• Sump measurements – including depth

and size of opening

• Distance to discharge point

• Discharge hose diameter, length,

material and connection type

• Duration of pumping operation

Having shortlisted the pumps

meeting those criteria, compare

information on their electricity or fuel

consumption, build quality and maintenance.

All of these will affect the

ongoing costs.

In remote locations requiring a portable

power supply, the decision is

usually between pneumatic and

hydraulic pumps. If there is already an

air compressor on site, a pneumatic

pump makes

good sense. It is

also a safe, sparkfree

option in the

presence of flammable

liquids.

Aside from those

situations, a

hydraulic pump

and portable

generator will

work best.

There are many more factors to consider

when choosing a pump. First there is the

nature of the liquid to be pumped,

which is often much more than just

water. Then there are the physical

demands it has to meet, such as the

required head and flow.

Using the five sections above as a checklist,

the supplier can be given a detailed

description of the pump’s intended

application. From that, a specialist can

advise on which models are best suited

to the job. Do not forget to factor in the

energy economy, durability and servicing

expense for each pump offered.

•

www.atlascopco.com

www.worldpumps.com

24 — 25 September 2019

Congress Center Wiesbaden, Germany

Registration

opening as from

30 November 2018

Powered by

VDMA Pumps + Systems

VDMA Compressors, Compressed Air

and Vacuum Technology


26

Application


Food & drink

Hermetically tight

system approach

T

o

guarantee high metering accuracy for emulsifiers

to ensure an exact degree of dilution, one chemical

company turned to a LEWA metering system with

ecodos diaphragm metering pumps, which could

dilute the emulsifier to the required 20%.

Because they can be soluble in a variety

of substances, emulsifiers are frequently

used when immiscible components have

to be combined. In order to achieve a

suitable mixture, such as in food production,

the pure, highly concentrated emulsifier

is diluted beforehand to the

working intensity. Above all, mixing

installations for producing a suitable

emulsifier have to have high metering

accuracy in order to ensure an exact

degree of dilution and prevent incorrect

mixtures or fluctuations in individual

batches.

Since this could not be guaranteed sufficiently

by its former manual process, an

international chemical company turned

to the experts at Lewa GmbH. Its

metering systems are equipped with

flow meters that continually check the

required degree of dilution of 20%; in

the event of possible deviations, incorrect

mixtures can be prevented thanks

to the short settling time and the fast

response of the control system.

Use of the LEWA mixing modules also

makes it possible to minimize logistics

costs. By stocking the highly concentrated

emulsifiers, which are only later

diluted with water, the use of additional

tankers delivering pre-diluted concentrate

mixture, can be dispensed with.

Robust modules

"With regard to the right dosing, what is

most important in emulsifier dilution is

accuracy and fulfillment of the safetyrelated

standards," says Volker Kirschbauer,

Sales Engineer at Lewa GmbH. As

the additives are primarily used in the

food industry, the dilution systems used

must meet high operating requirements.

"This includes requirements that the

modules must be robust and wear-proof

to prevent leakages and, in the case of a

hydraulically operated pump, any

possible contamination of the emulsifier

with lubricants," the specialist explains. At

the same time, however, the system has

to function as precisely as possible so

that the dilution levels requested by the

customer can be adhered to without any

deviations.

The flow meters of the system continually check the required degree of dilution. Incorrect mixtures

can be adjusted quickly as needed thanks to the short settling time of the control system. (Image:

LEWA GmbH)

Conventional packed plunger pumps,

which the chemical company had used

to dilute emulsifiers, are not ideally

www.worldpumps.com


Application 27

smart control only requires a short

settling time, meaning it can counteract

incorrect mixtures faster and in a more

targeted manner than commercially

available controllers, so the transition

times with imprecise mixture intensities

are noticeably shorter.

"According to customer specification, the

emulsifier mixture may not deviate from

the required 20% by 1%," Kirschbauer

explains. "Thanks to the optimized

control system, we can easily comply

with this requirement."

Using the diaphragm metering pump of the ecodos series, the highly concentrated emulsifier can be

diluted to a working intensity of 20%. (Image: LEWA GmbH)

suited for this purpose. "In the first step

here, the concentrated emulsifier fluid

was directed into the tank manually. If

the required volume was reached, the

valve was closed and a second one was

opened for the addition of the process

water for dilution," says Kirschbauer.

"Then, an agitator needed to be operated

for half an hour to produce a

homogeneous mixture."

This time-consuming, labor-intensive

process negatively impacted the customer's

production efficiency,

while also at

times the correct

mixture couldn’t be

achieved. "The human

error rate is high due

to factors like stress or

distraction,” Kirschbauer

says. "If the

pump is stopped too

late, for example, the intensity of the

emulsifier mixture can be changed

substantially, leading to more water

needing to be added in order to restore

the concentration required originally. In

turn, though, this means spending extra

time."

High metering accuracy

The large corporation, headquartered in

Great Britain, therefore contacted pump

manufacturer Lewa GmbH and commissioned

the German company to

construct a system for diluting a 70%

emulsifier. After visiting the company's

location and developing a customized

offer that took the specific spatial and

logistical circumstances into consideration,

the customer ultimately decided to

purchase a Lewa metering system with

ecodos diaphragm metering pumps,

which were to be used to dilute the

emulsifier to 20%.

"The system consists of two pump

groups: One pumps the emulsifier, the

other the dilution water," Kirschbauer

says, explaining the structure." A flow

meter is located in both which monitors

"If the measured partial flows

do not match the desired mixing

ratio, the control integrated into the

system automatically readjusts it.”

the current flow rate before the two

fluids flow into a static mixer, where they

are mixed." A third measuring instrument

in the tank lastly shows the sum of both

flow rates for control purposes, thus

giving the customer redundant security

– the sum of the partial flows must ultimately

equal the measured value of the

sensor.

"If the measured partial flows do not

match the desired mixing ratio, the

control integrated into the system automatically

readjusts it. The operator only

has to first specify the desired mixing

ratio," continues Kirschbauer. Due to the

fact that the control technology of LEWA

Metering system

Another specification from the British

company was the use of the same sizes

in the planning for the new metering as

in a previous project system. "If needed,

it should be possible to exchange individual

components between the mixing

units quickly and easily in order to

prevent production bottlenecks,"

explains Kirschbauer. Since diaphragms

and valves for both systems are of the

same type, this also simplifies procurement

processes and the stocking of

wear parts.

Furthermore, the Lewa dilution module

ensures more efficient stock keeping

thanks to its space-saving concept. For

example, if the customer wants to

further process the emulsifier in three

different concentrations, in a

conventional method, this

would require the use of

three tankers to deliver the

necessary quantities in the

desired intensities of dilution.

Thanks to the possibility of

blending the emulsifier

continuously over a wide

concentration range

in-house, only a single tanker filled with

a high concentration is needed.

The dilution system, through which a

20,000 kg mixing volume flows on a

daily basis, has been in operation since

summer 2018. "The customer has

ordered from us once again, and not

without reason. In particular, the production

efficiency was able to be increased

significantly thanks to the faster, automated

sequence," Kirschbauer reports.

Based on this positive assessment,

nothing is standing in the way of

another co-operative effort.

•

www.lewa.com

www.worldpumps.com

28

Pump FAQs


Pump FAQs

Q. How are metering

pumps selected and used

in the treatment of water?

A. Feed systems introduce

chemicals into water or wastewater

treatment process. The

treatment process requires

optimal synthesis of new

biological growth so the addition

of chemicals may be

required to maintain a

favorable growth environment.

It is also important to maintain

the pH of the water in the

process, and sufficient alkalinity

to provide for this operating

pH range. This may require the

Figure 1: Controlled Volume Metering Pump

addition of acid or caustic for

pH control. Generally, these

chemical feed systems require

small and precise dosing,

which requires controlled

volume metering-type pumps

(CVMP) that allow for a specific

dose of the chemical to be

provided to the receiving

stream (see Figure 1).

The CVMP flow rate can be

manually adjusted by a

micrometer dial, varying

the speed of the drive, or a

combination of the two and

may be controlled automatically

in response to a process

signal.

Care should be taken since

many disinfectants, such as

chorine, are degassing chemicals

that produce air bubbles.

These air bubbles can travel

through the suction line into

the pump’s head.

If bubbles become trapped

inside the head, the pump

may lose prime, or gas lock.

Since a gas-lock situation can

cause unreliable injection,

CVMPs with auto-degassing

capabilities are preferred to

prevent gas-lock situations.

Selecting the appropriate

CVMP usually requires an

examination of the required

chemical injection rate

including maximum and

minimum rates.

Additionally the pressure

rating, desired control options

(manual, timer, pulse, analog,

or on-off ), materials of

construction (stainless steel,

PVC, PVDF, PP, FKM, EPDM,

ceramic, etc.), and type of

connection (½-in NPT, ¼-in

tubing, etc.) should be evaluated

to select the appropriate

CVMP.

For additional information on

controlled-volume metering

pumps in wastewater treatment,

refer to Hydraulic Institute

Wastewater Treatment

Plant Pumps: Guidelines for

Selection, Application, and

Operation at pumps.org.

Q. How is the performance

of a metering pump

tested?

A. Uniform procedures for the

setup and testing of

controlled-volume metering

pumps (CVMP) and for

recording the test result data

are available in ANSI/HI 7.6

Controlled-Volume Metering

Pumps for Test.

The test procedures cover the

following:

• Functional testing of

production units

• Mechanical integrity test at

rated speed and pressure

specified

• Rate of flow and mechanical

integrity at rated speed

and pressure specified

• Verification of performance

to the manufacturer’s

specifications

Optional testing for consideration

(based on specific

application or criticality of

service) includes:

• Steady state accuracy

• Linearity

www.worldpumps.com


Pump FAQs 29

• Repeatability

• Net positive suction head or

net positive inlet pressure

The pump test may utilize,

but is not limited to, the

following:

• Factory or purchaser

furnished driver

• Safety relief valve to

protect the pump from

overpressure

• Closed tank or open

sump, and inlet and

outlet piping properly

sized for the pump being

tested

• Pulsation dampener or

other means to dampen

pressure pulsations

• A means for measuring

input speed to the pump

• A means for measuring

pump rate of flow, or other

agreed-upon units

• A means of measuring

inlet and outlet pressure

suitable for the range of

pressures being tested

• A means of measuring

the fluid temperature

For additional information

on controlled-volume

metering pump testing,

refer to the newly updated

ANSI/HI 7.6 Controlled-

Volume Metering Pumps for

Test at pumps.org.

ROTODYNAMIC CENTRIFUGAL

SLURRY PUMPS

The Hydraulic Institute offers the only American National Standard

(ANSI/HI 12.1-12.6) and a comprehensive webinar series for Slurry Pumps.

The Standard offers an overview of rotodynamic centrifugal pumps, design and application

considerations related to the selection of the right pump, including pump installation as well as

operation and maintenance procedures.

The 3-part webinar series reviews the ANSI/HI standard for slurry pumps and provides guidance on

how to interpret and apply the guidelines and recommendations given in the standard.

For more information about our standard, please visit

www.pumps.org/slurrystandard

For more information about our webinar, please visit

www.pumps.org/slurrywebinar

www.pumps.org

Hydraulic Institute

training@pumps.org

973.276.9700

WOPU_adv.indd 2 20-06-19 14:43

www.worldpumps.com

Product finder

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Index to advertisers

WORLD PUMPS April 2019

Andritz AG

Caprari Spa 5

Flowrox Inc 15

Gorman Rupp International Company

IFC

OBC

Hydraulic Institute 29

Siemens Ag 7

Tsurumi Manufactuirng Co Ltd 9

VDMA 25

Vesco Plastic Sales 32

WEFTEC 17

Europump information

Europump is a pan-European organisation composed of national pump

manufacturer associations in 17 countries. In total the organisation comprises

more than 450 member companies – manufacturers and distributors.

The Executive Council is the board of Europump. Its members – company

presidents, managing directors or CEOs – are elected representatives of their

national associations. The Europump President is the head of the Council. The

Council’s work is administered by the General Secretary and his staff.

EUROPUMP Officials

President

Martijn van den Born, BluePoint Brussels, Blvd A Reyers 80, BE-1030 Brussels, Belgium.

Tel: +32 2 206 6866

General Secretary

Pierre Lucas, BluePoint Brussels, Blvd A Reyers 80, BE-1030 Brussels, Belgium.

Tel: +32 2 206 6866; Eml: secretariat@europump.org; www.europump.eu

EUROPUMP Member Associations

AT

BE

CH

CZ

DE

DK

FI

FR

FMMI, Wiedner Hauptstrasse 63, AT - 1045 Wien, Austria Tel: + 43 5 90 900

3468, Fax: + 43 1 505 10 20, Eml: schicker@fmmi.at

Agoria, BluePoint Brussels, Blvd A Reyers 80, BE-1030 Brussels, Belgium

Tel: + 32 2 706 79 74, Fax: + 32 2 706 79 88, Eml: jeroen.vits@agoria.be

SWISSMEM, Pfingstweidstrasse 102 P.O. Box, CH - 8037 Zürich, Switzerland

Tel: +41 44 384 41 11, Fax: +41 44 384 42 42, Eml: a.gontarz@swissmem.ch

Czech Pump Manufacturers' Association - CPMA, Jana Sigmunda 79, CZ - 783

50 Lutin, Czech Republic Tel: + 420 585 652 423, Fax: +420 585 652 400, Eml:

m.sedlar@sigma.cz

Fachverband Pumpen + Systeme im VDMA, Lyoner Strasse, 18, DE - 60528

Frankfurt a.M, Postfach 71 08 63 DE - 60498 Frankfurt a.M., Germany Tel: + 49

69 66 03 12 81 Fax: + 49 69 66 03 22 81 Eml: christoph.singruen@vdma.org

Association of Danish Pump Manufacturers, Ornevej 1, DK 9230 Svenstrup J,

DK - 9230 Svenstrup J, Denmark Tel: +45 25 77 66 77 Eml: sss@dkpumps.dk

The Federation of Finnish Technology Industries, Eteläranta 10, FI - 00130

Helsinki, Finland Tel: + 358 91 923 1, Fax: + 358 96 24462, Eml: lauri.elers@

metsta.fi

PROFLUID Association française des pompes et agitateurs, des compresseurs

et de la robinetterie, Maison de la Mécanique, 45 rue Louis Blanc, FR - 92400

Courbevoie, France Tel: + 33 1 47 17 62 98, Fax: + 33 1 47 17 63 00,

Eml: profluid@profluid.org

GB

GR

IT

NL

PL

RO

RU

SE

TR

British Pump Manufacturers Association - BPMA, The National Metalforming Centre,

47 Birmingham Road, West Bromwich B70 6PY, United Kingdom

Tel: + 44 121 601 6350, Fax: + 44 121 601 6373, Eml: enquiry@bpma.org.uk

Union of Greek Metal Industries, Loudovikou Street 1, EVEP Building,

GR - 18531 Piraeus, Greece Tel: + 30 141 78412, Fax: + 30 141 73974

Eml : mdamigos@dppumps.gr

ASSOPOMPE, c/o ANIMA, via Scarsellini 13, IT - 20161 Milano, Italy

Tel: +39 02 45 418 531 Fax: + 39 02 45 418 545 Eml: assopompe@anima.it

Holland Pomp Groep, c/o Vereniging FME-CWM, Boerhaavelaan 40, Postbus 190,

NL - 2700 AD Zoetermeer, The Netherlands Tel: +31 (0)88 400 8 538,

Fax: +31 (0)88 400 8 403, Eml: hpgr@fme.nl

Polish Pump Manufacturers Association - ul. Lelewela 15, PL - 53-505 Wroclaw,

Poland Tel: + 48 71 783 61 52, Fax: + 48 71 783 61 52, Eml: ppma@p-s.com.pl

APPR - str Ziduri Mosi nr 25, RO - Bucuresti cod 021203, sector 2, Romania

Tel: + 40 724 463 578, Fax: + 40 311 043 272, Eml: appr@rdslink.ro

Russian Pump Manufacturers' Association - RPMA, 1 Sokolnichesky Val, hall 4, of.6,

RU - 107113 Moscow, Russia Tel: + 7 499 269 3396, Fax: + 7 499 269 3396,

Eml: office@rpma.org.ru

SWEPUMP, P.O Box 5510, SE – 114 85 Stockholm, Sweden Tel: + 46 8 782 08 50,

Fax: + 46 8 660 33 78, Eml: swepump@tebab.com

POMSAD, Batı Sitesi Mahallesi, F.S.M. Bulvarı No:546, 06370 Yenimahalle, Ankara, Turkey

Tel: + 90 312 255 1073, Fax: + 90 312 255 1074, Eml: pomsad@pomsad.org.tr

www.worldpumps.com

32

Diary dates


2019 Diary Dates

Ts & Cs

July

10 –11 July 2019

Kuala Lumpur, Malaysia

Asia Turbomachinery & Pump

Industry Summit

https://turbolab.tamu.edu/industrysummit/

11–13 July 2019

Lagos, Nigeria

3rd MEGA CLIMA WEST AFRICA

www.westafricahvacexpo.com

11–13 July 2019

Lagos, Nigeria

2nd West Africa Water Expo

www.westafricawaterexpo.com

August

21–23 August 2019

Ho Chi Minh, Vietnam

Oil & Gas Tech Asia 2109

www.oilgastechasia.com

26 –29 August 2019

Nairobi, Kenya

HVAC Expo East Africa

www.megaclimaexp.com

September

9 –12 September 2019

Abu Dhabi, United Arab Emirates

24th World Energy Congress

www.wec24.org


Johannesburg, South Africa

Power Week Africa

www.power-week.com


Houston, Texas, USA

Turbomachinery & Pump

Symposia

www.10times.com/pump-turbo-symposiaexpo


Lagos, Nigeria

The Big 5 Construct Nigeria

www.thebig5constructwestafrica.com

11–12 September 2019

Birmingham, UK

Flood Expo 2019

www.thefloodexpo.co.uk


Bombay, India

TechIndia 2019

www.techindiaexpo.com

21–25 September 2019

Chicago, Illinois, USA

WEFTEC 2019

www.weftec.org


Wiesbaden, Germany

4th International Rotating

Equipment Conference


More diary dates are listed in our events

page on the World Pumps website:

http://www.worldpumps.com/events/

All events are subject to change and/or

cancellations. World Pumps accepts no

responsibility for any changes. Further

information can be obtained only by

contacting the relevant parties.

To list your event in our next issue and

website, please send the information to

a.burrows@elsevier.com

All contributions, whether articles, news items, or letters, should be addressed to the Editor, World Pumps Magazine, PO Box 150, Kidlington, Oxford OX5 1AS, UK.

Tel: +44 1865 843686; Fax: +44 1865 843973; E-mail: a.burrows@elsevier.com

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Editor-in-Chief:

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Papers already published and all freely accessible on ScienceDirect or

at elsevier.com/locate/rineng

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engineering issues?

Antonio García Martinez

● Progress toward understanding vortex

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combustion chambers

Stephen Busch | Federico Perini

● Analysis of a series hybrid vehicle

concept that combines low temperature

combustion and biofuels as power source

Antonio García | Javier Monsalve-Serrano

● In-cylinder flame luminosity measured

from a stratified lean gasoline direct

injection engine

J. Jeon | N. Bock | W.F.Northrop

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compression ignition engine during

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