Watts Catalogue

ollyukillo

Select from a truly outstanding range

of world leading products


2

OVER 20 MANUFACTURING LOCATIONS IN EUROPE

Watts. It’s a name you’ll recognise no matter what

area of industry you’re involved in, and wherever

you are situated in the world.

And no wonder. Because as well as being around

for over 100 years, we’ve also developed a

reputation as a global leader in the field.

At Watts Industries, we’re focused not only on water,

plumbing and heating, valves and controls, but a

great deal more. We are dedicated to developing

the most innovative products. It’s what we

specialise in.

This commitment has driven the company since it

was founded in 1874. It’s led to us firmly establishing

ourselves as one of the world’s premier manufacturers of

valves and controls.

Watts has 55 facilities and 6,500 employees around the globe, with stateof-the-art

manufacturing plants located throughout Europe, North America

and Asia. We have also developed an impressive strategic warehousing

and distribution network to ensure the cost-efficient distribution of our

products to customers in a variety of industries.

Watts – the name for quality products in the UK

Whilst you may already have heard of our name, you might be

surprised to discover just how extensive our capabilities are, and the

depth of service Watts can now offer - to original equipment

manufacturers and wholesalers in the UK.

Over the last few years, we’ve made major

investments to our distribution service and added

highly respected tube manipulation and

electronic controls companies to the Watts

Industries UK family.

We can now claim to offer one of the largest and

most diverse plumbing, heating and

water quality product lines available –

anywhere. And we can justly claim to

serve some of this country’s biggest

wholesalers.

Watts. You’re about to hear a lot more

about us.


3

WATTS

THE NAME

BEHIND A

WORLD CLASS

CAPABILITY

WATTS INDUSTRIES IS FOCUSED

ON CUSTOMER COMFORT, SAFETY

AND PROTECTION

WE HAVE 55 FACILITIES

WORLDWIDE, 6500 EMPLOYEES

AND OVER $1.2 BILLION ANNUAL

SALES

WE HAVE A PRODUCT PORTFOLIO

OF MORE THAN 4000 PRODUCTS,

WHICH ARE DISTRIBUTED

WORLDWIDE


4

WORLD WIDE SALES IN EXCESS OF $1.2BN

With more than 20 Watts Industries production

plants and sales offices throughout Europe,

including 15 ISO-certified manufacturing facilities,

and an annual turnover over EUR 500 Million,

we’ve already made a big name for ourselves

among wholesalers and OEMs across the

continent. Now it’s time for the UK to sit up and

really take notice.

If you’re an OEM or a wholesaler in this country, and

you deal with related products in any way, then the

Watts name will be very familiar to you.

What you probably don’t realise though is just how

extensive our plumbing, heating and water

quality product range is. Or precisely how much

support we can offer in bringing you the

specialist quality-tested solutions you need.

Whatever your requirement, as the marketing,

sales and distribution company for Watts Industries products within

the UK and Ireland, we’re here to help you.

Backflow preventers

Watts Industries is the world leader in backflow prevention devices.

Sanitary products

We’re a key manufacturer and supplier of pressure reducing valves,

thermostatic mixing valves, safety valves and safety groups.

HVAC products

Solar ...air conditioning...fuel and gas...if it’s a HVAC application then

Watts has just the quality products you’re looking for.

Our recent acquisition of Swansea-based Team Precision also

means we now have unparalleled experience in the custom design,

manufacture and supply of manipulated tubing.

Instrumentation

Plus we offer a complete range of instrumentation products.


5

WATTS

THE NAME FOR TRIED AND

TRUSTED TECHNOLOGY

• AUTOMATIC CONTROL VALVES

• BACKFLOW-PREVENTERS

• BALANCING AND CONTROL VALVES

• CHECK VALVES

• EXPANSION VESSELS

• FILTERS AND STRAINERS

• GAS AND FUEL VALVES

• INSULATED PEX PIPE

• MANIFOLDS AND FITTINGS

• MEASURING GAUGES

• PRESSURE REDUCING VALVES

• RADIATOR ACCESSORIES

• SAFETY VALVES AND UNITS

• SHUT-OFF VALVES

• SYSTEMS AND SYSTEM PRODUCTS

• THERMOSTATS AND TEMPERATURE

CONTROLLERS


6

OVER 4,000 PRODUCT LINES AVAILABLE IN STOCK

At Watts Industries UK we treat our relationships with

customers as a partnership. We listen to your needs.

We get to understand the problems and issues you

face. And by drawing on our experience and the vast

resources at our disposal we work closely with our

customers to find the most effective solutions possible.

Think of Watts. Think of the one-stop shop.

Having recently doubled the size of our centralised storage and

distribution facility in Evesham, we are perfectly positioned to provide

you with the essential plumbing, heating and water quality products

you need, fast.

In every single way, Watts delivers.

Watts the name for service and support

The staff at Watts Industries UK all have a background in

the industry and are ready to help you find the most suitable and

cost effective solutions possible.

We have experienced customer service specialists waiting to guide you

through our product range and give you informed advice, whilst full

support is available across our entire product offering with a wide

variety of publications and CD ROMs.

You can also be sure that the products we supply are competitively

priced. That’s because, as a major player in the market, we are

committed to low cost manufacturing and

investing in product development.

No wonder Watts is working closely

with some of the biggest wholesalers

and distributors in the UK.


Antipollution

devices


ANTIPOLLUTION DEVICES

EXAMPLE OF APPLICATION

8

3

3

2

4

1

1 Backflow preventer unit.

2 Backflow preventers with unregulated pressure zone.

3 Anti-siphon devices.

4 Anti-siphon devices for watering taps.

Please note: The diagram is for illustrative purposes only; for guidance on specific applictions please refer to the

Water Regulations Manager at your local water company.


ANTIPOLLUTION DEVICES

Modern and safe solutions for our drinking water

9

Water is one of our most vital resources. Protecting our water

quality is crucial to ensuring clean and safe drinking water for

the future.

We use and distribute our water for many different purposes

via a public water supply network that is becoming

increasingly more complex. Consumers from all walks of life

are connected to this network, which entails significant

contamination risks for water supply and distribution systems.

A challenging environment such as this calls for innovative

and watertight security solutions that meet today’s demands.

A challenge that Watts Industries is fully capable of meeting.

Public water supply network with a large number of consumers

BA BS and BA BM: the new standard in BA drinking water protection

Watts Industries backflow prevention devices BA 009 and BA 909 are used

worldwide to protect public water supply systems from contamination by backflow

of liquids in hazard category 4, as defined in EN 1717.

To meet the new European and UR legislation and product specifications in this

area, Watts Industries introduced the BA BS backflow prevention device in the

dimensions DN 6, DN 8 and DN 10. The BA BS is designed specifically for low

flow rate applications.

With its new BA BM, in the dimensions DN 15 to DN 50 inclusive, Watts Industries

offers a complete range of backflow prevention devices that meets the

requirements set out in the European standards EN1717 and EN12729 for

protection of drinking water systems from backflow.


ANTIPOLLUTION DEVICES

RPZ BACKFLOW PREVENTERS – THREADED

10

STANDARD

The BA BS has been developed in compliance with EN1717 and EN12729.

Installation guidelines

The BA BS is to be installed according to your national installation guidelines.

BA BS material specifications

Body

Relief valve body

Seal

Tundish

Connections

DZR brass CW602N

Plastic (PA)

Rubber

Plastic

DZR brass

BA BS technical specifications

Max. system pressure PN 10 (10 bar)

Nom. operating temp. 65°C

Peak temperature

90 °C for 1 hour/day

BA BS approvals

Kiwa, WRAS, NF, Belgaqua

Article numbers

Model BS DN Unit Device

BA BS 006 6 405006311 405006010

BA BS 008 8 405008311 405008010

BA BS 010 10 405010311 405010010

Overall dimensions

BA BS pressure loss curve

DRUKVERLIESCURVE BA BS006/008/010

Delta P [kPa]

DN6

DN8

DN10

150

140

BS006

BS008

130

120

BS010

110

100

90

80

70

60

50

40

30

20

10

0

0 0,2 0,4 0,6 0,8 1 1,2 1,4

Flow [m3/h]

EN12729 BS006 BS008 BS010

Cutting edge materials and technology

• Dezincification resistant brass (DR).

• Piston-driven relief valve, designed to reduce breakdown and maintenance and extend

useful life of device. The absence of a diaphragm ensures that only a small area of the

rubber surface will come in contact with potable water, reducing potential for excess

sediment accumulation in device.

• A tundish, for draining out water and keeping floor dry.


ANTIPOLLUTION DEVICES

RPZ BACKFLOW PREVENTERS – THREADED

BA BM TECHNICAL SPECIFICATIONS

The new BA BM range was developed to complement the BA BS range in order to satisfy the

new European legislation and product specifications for backflow prevention devices that protect

drinking water systems from backflow of liquids in hazard category 4, as defined in EN1717.

11

Standard

The BA BM is developed in accordance with EN1717 and EN12729.

Installation guidelines

The BA BM is to be installed according to your national installation guidelines. Valve supplied as

either a unit which includes strainer and isolating ball valves or as a device which is the valve on

its own. Valves must be tested on an annual basis by a qualified tester. www.wras.co.uk

Overall dimensions

BA BM Unit 015 020 025 032 040 050

Connections (male) R inch ½” ¾” 1” 1 ¼” 1 ½” 2”

Tundish connection (female) D mm 32 32 40 40 50 50

Overall length excl. connections L1 mm 122 122 157 157 220 220

Overall length incl. connections L2 mm 201 201 252 252 336 336

Height H1 mm 168.5 168.5 238 238 303.5 303.5

Height H2 mm 103 103 156 156 202.5 202.5

Height H3 mm 65.5 65.5 82 82 101 101

Width W mm 53 53 76 76 115 115

Weight, incl. connections L kg (+/-) 1,2 1,2 2,7 2,7 6,5 6,5

and tundish

STR

BA BM material specifications

Body

Relief valve body

1st and 2nd check valve module

Seal

Tundish

Connections

DZR brass CW602N

Plastic (PA)

Plastic (POM)

Rubber

Plastic

DZR

Stop Strainer BA device Stop valve

valve

with tundish

BA BM technical specifications

Max. system pressure

PN 10 (10 bar)

Nom. operating temperature 65°C

Peak temperature

90°C for 1 hour/day

BA BM Approvals

Kiwa, WRAS, DVGW, NF, Belgaqua

Delta P [kPa]

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

BA BM pressure loss curve

DRUKVERLIESCURVE BA BS006/008/010

DN6

0 0,2 0,4 0,6 0,8 1 1,2 1,4

Flow [m3/h]

DN8

BS006

DN10

BS008

BS010

Article numbers

Model BM DN Unit Device

BA BM 015 15 405015311 405015310

BA BM 020 20 405020311 405020310

BA BM 025 25 405025311 405025310

BA BM 032 32 405032311 405032310

BA BM 040 40 405040311 405040310

BA BM 050 50 405050311 405050310

EN12729 BS006 BS008 BS010


ANTIPOLLUTION DEVICES

RPZ BACKFLOW PREVENTERS – THREADED / FLANGED

12

RPZ 009 – PROTECTION BA

Backflow preventer designed to protect potable water supplies in accordance with national

plumbing regulations and water company requirements up to Fluid Category 4.

Comprising two in-line, independent check valves, captured springs and replaceable check

seats with an intermediate relief valve in a bronze body, supplied with Y type strainer and two

isolating ball valves, with screwed BSP female end connections.

Max. operating pressure 12 bar. Operating temperature range 1ºC to 80ºC.

Type Part number Size body Box Qty

RPZ009 EDP0062095 1/2” 1

RPZ009 EDP0063031 3/4” 1

RPZ009 EDP0063021 1” 1

RPZ009 EDP0062950 1-1/4” 1

RPZ009 EDP0062952 1-1/2” 1

RPZ009 EDP0063011 2” 1

Tundishes to suit above valves

Type Part number Size body Box Qty

Tundish EDP0881399 1/2”-3/4” 1

Tundish EDP0881376 1”-1 1/2” 1

Tundish EDP881378 2”-3” 1

RPZ 909 – PROTECTION BA

Backflow preventer designed to protect potable water supplies in accordance with national

plumbing regulations and water company requirements up to Fluid Category 4.

Comprising two in-line, independent check valves, captured springs and replaceable check

seats with a high discharge capacity relief valve in an epoxy coated cast iron body, flanged

PN10 end connections.

Max. operating pressure 12 bar. Operating temperature range Min. 1ºC to Max. 60ºC.

Type Part number Size body Box Qty

RPZ909 EDP385943 2-1/2” 1

RPZ909 EDP385945 3” 1

RPZ909 EDP385934 4” 1

RPZ909 EDP385935 6” 1

RPZ909 EDP385596 8” 1

RPZ909 EDP385615 10” 1

Tundishes to suit above valves

Type Part number Size body Box Qty

Tundish EDP881378 2”-3” 1

Tundish EDP0881385 4”-10” 1


ANTIPOLLUTION DEVICES

BA BACKFLOW PREVENTER TEST KITS

TK99D DIGITAL

Differential electronic pressure gauge for monitoring differential pressures and checking for

correct operation of BA backflow preventers during normal yearly maintenance. Compact and

practical device, easy to use. Maximum accuracy in measurement (error 0.25%) with reading of

data on liquid crystal display. Indicator of battery consumption and automatic stop of the gauge

after 15 minutes of non-use. High impact and water-tight ABS case. Corrosion-resistant

stainless steel needle valves, with interchangeable seats. Stainless steel (316) protection

strainer (100µ).

Max. pressure: 14 bar. Max. temperature: 99°C.

Complete with brass fittings and adapters.

Three flexible pipes, size 91cm, in different colours and with Female Flare fittings.

Supplied with two alkaline batteries type C to ensure a back-up time of 400 running hours.

13

Type Part number Box Qty

TK-99D PSI EDP385516 1

TK-99D KPA EDP385518 1

Carry case EDP0385508 1

TK-9A MECHANICAL

Mechanical differential pressure gauge for monitoring differential pressures and checking for

correct operation of BA backflow preventers during normal yearly maintenance.

Compact and portable device.

Max. pressure: 12 bar. Max. temperature: 100ºC.

Gauge diameter 100mm range 0 –15 psid and 0 – 1 bar with a ± 2% accuracy full scale.

Three Flexible hoses, 1 metre long, colour coded with Female Flare fittings.

The unit is supplied with a rugged, lightweight, shock resistant carrying case.

Type Part number Box Qty

TK-9A EDP385496 1

BACKFLOW PREVENTER, ANTI-SIPHON VACUUM BREAKER DEVICES

TYPE CA

Backflow preventer, non-verifiable disconnecter with different pressure zones, built-in filter.

WRAS approved to Category 3. Commonly used to directly connect appliances such as

domestic heating boilers up to 45 kW permanently to a mains supply. DZR brass body, EPDM

diaphragm with stainless steel internals. Female union ends.

Max. operating pressure: 10 bar. Operating temperature range: Min. 1ºC Max. 65ºC.

Protection : CA

According to WRAS, KIWA-NL, ANSEAU, ASSE, CSA.

WRAS approval applies to part numbers 30215, 30115 and 30138.

Type Part number Size body Box Qty

Plain brass + air gap 30115E 1/2” 1

Nickel plated + air gap 30157 1/2” 1

Plain Brass + air gap 30215 3/4 1


ANTIPOLLUTION DEVICES

DOUBLE / SINGLE CHECK VALVES

14

DOUBLE CHECK VALVES

DZR brass body with copper compression and screwed BSP female end connections.

Type Part number Size body Box Qty

Copper compression 107207 15 mm 25

Copper compression 107218 22 mm 25

Copper compression 107220 28 mm 25

Type Part number Size body Box Qty

Screwed ends M10603 1/2” 25

Screwed ends M10604 3/4” 25

Screwed ends M10605 1” 25

Screwed ends M10606 1-1/4” 25

Screwed ends M10607 1-1/2” 25

Screwed ends M10608 2” 25

WRAS approval applies to screwed valves only

SINGLE CHECK VALVES

Brass body with copper compression and screwed BSP female end connections.

Type Part number Size body Box Qty

Copper compression M10500 15 mm 25

Copper compression M10501 22 mm 25

Copper compression M10502 28 mm 25

Type Part number Size body Box Qty

Screwed ends M10520 1/2” 25

Screwed ends M10521 3/4” 25

Screwed ends M10522 1” 25

Screwed ends M10523 1-1/4” 25

Screwed ends M10524 1-1/2” 25

Screwed ends M10525 2” 25

NN & NR

Check valve with low opening pressure and protection against water hammer. Silent operation

thanks to double guided pin-plug. Replaceable plastic insert check. NBR seals. Stainless steel

spring. Chrome plated brass body.

Type NN – flow direction from male to female thread.

Type NR – flow direction from female to male thread.

Max. operating pressure: 16 bar. Max. operating temperature: 100ºC.

Type Part number Size body Box Qty

NN 230015165 1/2” 25

NN 230020165 3/4” 25

NR 235015165 1/2” 25

NR 235020165 3/4” 25


ANTIPOLLUTION DEVICES

CAST IRON CHECK VALVES

FC

Spheroidal cast iron check valve with flanged connections.

Check function controllable according to EN 13959.

Field of application :

• as anti-pollution device in drinking water supply with EA protection according to EN1717.

• as non-return (check) valve in all hot and cold domestic water supply circuits, in distribution

networks of fluid operating in the systems, in pumping stations, etc.

Operating pressure: 16 bar.

Max. temperature: 70°C.

Min. temperature: 4°C.

Spheroidal cast iron body.

Elastomeric parts: NBR.

Other components stainless steel.

Approvals : Belgaqua. WRAS

WRAS approval requires horizontal installation, cold water only.

15

Type Part number Size body Box Qty

FC 308065361 65 mm 1

FC 308080361 80 mm 1

FC 308100361 100 mm 1

FC 308125361 125 mm 1

FC 308150361 150 mm 1

FC 308200361 200 mm 1

FC 308250361 250 mm 1

FC hydraulic characteristic


Pressure

reducing valves


PRESSURE REDUCING VALVES

COMPRESSION / FEMALE

18

DRV/E-COMPRESSION

Diaphragm pressure reducing valve, compact design. Brass CW602N body (anti-dezincification

alloy), with male connections complete with swivel nut: Pipe dia. 15 and 22. Gauge connection

1/4". Max. upstream pressure: 25 bar. Adjustable downstream pressure: 1.5 – 6 bar. Max. fluid

temperature: 30°C. Can be used for water, compressed air. Mounting in any position.

WRAS approved cold water.

Type Part number Size body Box Qty

DRV/E 0502115 15mm 10

DRV/E 0502120 22mm 10

DRVE

Single seated pressure reducing valves with female connections. Brass CW617N body.

High impact plastic cap. Max. inlet pressure: 25 bar. Adjustable downstream pressure:

1.5 – 6 bar. Diaphragm pressure reducing valve, compact design. Brass CW617N body.

Max. upstream pressure: 25 bar. Adjustable downstream pressure: 1.5 – 6 bar.

Max fluid temperature: 30°C

Type Part number Size body Box Qty

DRVE 0502020 3/4” F/F 1

REDUFIX

Diaphragm pressure reducing valve, designed for protecting electrical heating appliances or

appliance for domestic hot water production. Anti-dezincification (anti-corrosion) brass body,

especially suitable for single users. Gauge connection 1/4" female. Can be installed in all

positions. Max. upstream pressure: 15 bar. Max. temperature: 70°C.

WRAS approval applies to part numbers 82000, 82110, 82007, 82009, 82009BR, 82114 and

82115.

Type Part number Factory set @ Size body Box Qty

REDUFIX 82000 4 bar 1/2" F/F 25

REDUFIX 82005 3.5 bar 1/2" F/F 25

REDUFIX 82006 2 bar 1/2" F/F 25

REDUFIX 82007 3 bar Dual 3/4" M/M & 1/2" F/F 25

REDUFIX 82110 3 bar 3/4" M/M 25

REDUFIX 82210 4 bar 3/4" M/F union nut 25

REDUFIX 82212 3 bar 3/4" M/F union nut 25

REDUFIX 82213 3.5 bar 1/2" M/F 25

MINIBRASS

Piston operated pressure reducing valve with NBR seat and brass body and internal parts. Can

be used on clean water, compressed air and diesel oil up to 60˚C. Maximum inlet pressure 15

bar. Max. temperature 80˚C. Type 102/103 without gauge port. Type 106/109 with gauge port

Type Part number Size body Box Qty

MINIBRASS 102 102F/F15 1/2” F/F 10

MINIBRASS 103 103F/F20 3/4” F/F 10

MINIBRASS 106 106F/F15 1/2” F/F 10

MINIBRASS 109 109F/F20 3/4” F/F 10


PRESSURE REDUCING VALVES

FEMALE

REDUPRESS

Diaphragm pressure reducing valve, compact design. DZR brass body with two gauge

connections 1/4" female. Min. temperature 1ºC. Max. temperature 80ºC. High pressure model: Max.

upstream pressure 16 bar. Min. outlet pressure: 1.5 bar. Max. outlet pressure: 5.5 bar. Low Pressure

model: Max. upstream pressure 8 bar. Min. outlet pressure: 0.5 bar. Max. outlet pressure: 2.5 bar.

19

BY-PASS

Type Part number Presssue Range Size body Box Qty

REDUPRESS 81106 Low Pressure 1/2” F/F 20

REDUPRESS 81100 High Pressure 3/4” F/F 20

REDUPRESS 81103 Low Pressure 1” F/F 20

REDUPRESS 81116 High Pressure 1-1/4” F/F 20

REDUPRESS 81200 Fixed @ 3.5 bar 1-1/2” F/F 20

U5B

EXPANSION

WRAS approval applies to part numbers 81100, 81015, 81113, 81106, 81116 and 81200.

Diaphragm pressure reducing valve. Watts U.S. Patent N° 3. 115. 154. Heavy duty bronze

series, with large built-in filter and separate connection for quick maintenance. Internal by-pass

for upstream discharge of any downstream overpressures. Bronze body, cast iron cap.

Stainless steel filter and seat. Diaphragm made of Nordel reinforced with Nylon fibres. Max.

inlet pressure: 20 bar. Adjustable downstream pressure: 1.5 – 5 bar. Can be used for water, air

and neutral gases up to 71°C.

Type Part number Size body Box Qty

U5B EDP0052979 1/2” F/F 1

U5B EDP0059879 3/4” F/F 1

U5B EDP0053200 1” F/F 1

U5B EDP0054140 1-1/4” F/F 1

U5B EDP0054358 1-1/2” F/F 1

U5B EDP0059883 2” F/F 1

PRECISIO

Bracketed diaphragm pressure reducing valve; complete with 2 pressure gauge connections 1/4"

female. Reduces the pressure without lowering the flow rate. Rugged and reliable unit not requiring

maintenance. Complies with comfort and acoustic standards. Plug connected to diaphragm

through bracket. Pressure set through PHILLIPS screw. Its compact size allows interchangeability

with most of the pressure reducing valves on the market. Brass DZR (corrosion-resistant) body.

Max. inlet pressure: 16 bar. Adjustable downstream pressure: 1.5 to 5.5 bar.

Max. operating temperature: 80°C.

Type Part number Size body Box Qty

PRECISIO 86201 1/2” F/F 1

PRECISIO 86200 3/4” F/F 1

PRECISIO 86211 3/4” M/M 1

PRECISIO 86210 3/4” M/M 1

PRECISIO 86215 3/4" Female swivel x Male 1

Pressure reducing valves covered by WATTS US PATENT N° 3,115,154

UPSTREAM

PRESSURE

REDUCED PRESSURE

PROTECTIVE BY-PASS

PLUG

UPSTREAM

DOWNSTREAM

UPSTREAM

DOWNSTREAM

ABSENCE OF FLOW

ABSENCE OF FLOW

DOWNSTREAM PRESSURE TENDS TO FALL

DOWNSTREAM PRESSURE TENDS TO RISE


PRESSURE REDUCING VALVES

FEMALE

20

SERIES 223

Pressure reducing valve with highly sensitive spring and large diaphragm that permits accurate

adjustment. High temperature diaphragm for both hot and cold water. Bronze body screwed

BSP female, stainless steel seat. Max. upstream pressure: 20 bar. Adjustable downstream

pressure: 1.5 – 6.0 bar. Min. temperature 1ºC. Max. temperature 70ºC.

Upon request available with Low and High Pressure versions.

Type Part number Size body Box Qty

223 EDP296239 1/2” F/F 1

223 EDP296155 3/4” F/F 1

223 EDP296603 1” F/F 1

223 EDP296865 1-1/4” F/F 1

223 EDP296154 1-1/2” F/F 1

223 EDP297448 2” F/F 1

223 EDP305735 2-1/2” F/F 1

223 EDP303646 3” F/F 1

SERIES SS-263AP

Compact stainless steel pressure reducing valve for deionised water purification, chemical

handling, high purity, water purification systems and low pressure steam 15 psi (1.0 bar)

applications. Rugged investment cast stainless steel body and spring cage, with gauge

connection 1/4" female, stainless steel adjusting screw, oversized orifice. End connection 1/2"

NPT female. Max. upstream pressure: 28 bar. Min. temperature 0.5ºC.

Max. temperature 49ºC.

Upon request available with Viton Seals.

Type Part number Outlet presssure range Supplied set at Box Qty

SS-263AP EDP0335115 1 – 25 psi 10 psi 1

SS-263AP EDP335077 3 – 50 psi 15 psi 1

SS-263AP EDP335078 10 – 125 psi 25 psi 1

SS-263AP EDP0335080 100 – 300 psi 125 psi 1

SERIES P50/P60

Miniature pressure reducing valve in corrosion proof acetal plastic, all internal metal

components in contact with the fluid are stainless steel. P50 – Multi-purpose pressure regulator

for general use. P60 – Balanced piston design for applications where constant downstream

pressure and accurate flow performance are required. Connections 1/4" BSP female.

Max. upstream pressure: 21 bar. Min. temperature 5ºC. Max. temperature 66ºC.

Type Part number Outlet presssure range Supplied set at Box Qty

P50 EDP0354551 0 – 25 psi 15 psi 1

P50 EDP0354552 0 – 60 psi 40 psi 1

P50 EDP0354553 0 – 125 psi 50 psi 1

P60 EDP0354554 0 – 25 psi 15 psi 1

P60 EDP354555 0 – 60 psi 40 psi 1

P60 EDP354556 0 – 125 psi 50 psi 1

P60 4WAY EDP354591 0 – 60 psi 40 psi 1

P60 4WAY EDP354592 0 – 125 psi 50 psi 1


PRESSURE REDUCING VALVES

UNION

DRV

Diaphragm pressure reducing valve with compensated seat and complete with unions.

Brass CW617N body and cap. Stainless steel strainer. 1/2" - 3/4" - 1" = 600 µ

1 1/4" - 1 1/2" - 2" = 750 µ. Plastic valve seat. Interchangeable filter-regulator unit.

Max. inlet pressure: 25 bar. Adjustable downstream pressure: 1.5 - 6 bar. Can be used for

water, air and neutral gases up to 30°C. Pressure drops less than 1.3 bar at characteristic flow

rate DIN. Noise < 20 dB – Class 1 in Germany.

21

Type Part number Size body Box Qty

DRV 0501115 1/2” M/M 10

DRV 0501120 3/4” M/M 10

DRV 0501125 1” M/M 10

DRV 0501132 1 1/4” M/M 1

DRV 0501140 1 1/2” M/M 1

DRV 0501150 2” M/M 1

DRVN

Patented diaphragm pressure reducing valve with compensated seat, outlet pressure

adjusting knob and external graduated scale for easy reading of set pressure.

Complete with unions. Body and cap of shot-blasted stamped brass CW617N.

Stainless steel filter cartridge. Pressure gauge connection on both sides: 1/4".

Materials in contact with fluids KTW certified. Max. inlet pressure: 25 bar.

Adjustable downstream pressure: 1.5 and 6 bar. Max. operating temperature: 30°C.

Can be used for water, air and neutral gases. Noise < 20 dB – Class 1 in Germany.

According to DVGW.

Type Part number Size body Box Qty

DRVN 0502515 1/2” M/M 10

DRVN 0502520 3/4” M/M 10

DRVN 0502525 1” M/M 10

DRVN 0502532 1 1/4” M/M 1

DRVN 0502540 1 1/2” M/M 1

DRVN 0502550 2” M/M 1

Cavitation diagram for pressure reducing valves series

DRV

CAVITATION

The cavitation diagram shows three operating zones of the pressure reducing valve

plotted against the upstream and downstream pressures, namely:

Zone C: normal duty, no cavitation

Zone B: medium duty, risk of cavitation

Zone A: heavy duty, the pressure reducing valve shows cavitation.

Continuous operation in the red cavitation zone could cause rapid damage of the

internal parts.

SIZING

Example 1 (cavitation)

Pressure reducing valve with: Inlet pressure P1 = 14 bar. Outlet pressure P2 = 3 bar.

From the cavitation diagram it can be seen that the pressure reducing valve is

constantly working in the red zone. To avoid rapid deterioration, two pressure

reducing valves could be used, one connected upstream to the other.

Upstream pressure reducing valve: pressure front from 14 to 6 bar (green zone).

Downstream pressure reducing valve: pressure front from 6 to 3 bar (green zone).

A Cavitation zone B Transition zone C Work zone

20

(bar)

Inlet pressure

18

16

14

12

10

8

6

4

A

B

C

2

0

0 1 2 3 4 5 6 7

Downstream pressure

(bar)


PRESSURE REDUCING VALVES

UNION

22

MOV809T-143

Pressure reducing valve brass body and diaphragm, stainless steel seat, NBR O-rings, two

gauge connections 1/4" BSP female. Max. upstream pressure: 20 bar. Adjustable downstream

pressure: 0.6 – 6.0 bar. Min. temperature 1ºC. Max. temperature 80ºC.

Type Part number Size body Box Qty

809T-143 M11200 1/2” F/F 1

809T-143 M11201 3/4” F/F 1

MOV809T-146

Pressure reducing valve brass body and diaphragm, stainless steel seat, NBR O-rings, two

gauge connections 1/4" BSP female. Max. upstream pressure: 20 bar. Adjustable downstream

pressure: 0.6 – 6.0 bar. Min. temperature 1ºC. Max. temperature 80ºC.

Type Part number Size body Box Qty

809T-146 M11300 1/2” F/F 1

809T-146 M11301 3/4” F/F 1

809T-146 M11302 1” F/F 1

809T-146 M11303 1-1/4” F/F 1

809T-146 M11304 1-1/2" FF 1

809T-146 M11305 2" FF 1


PRESSURE REDUCING VALVES

FLANGED

PR500

23

The pilot operated reducing valve PR500 reduces a higher upstream pressure to

a constant lower downstream pressure. This very accurate valve is designed to

operate with a minimum of maintenance. The only moving parts in the valve are

the diaphragm and the stem assembly, which are guided by an exchangeable

bearing in the cover and the valve seat. The Watts PR500 is easy to install and

adjust. It is available with flanges (DN50 - DN250).

5

2

3

6

4

No. Name

1 Body/main valve

2 Fixed orifice

3 Flow strainer

4 Pilot valve

5 Air vent

6 Flexible tubing

Dimensions

1

A

C1

C2

Δ P in bar

10.0

1.0

Pressure Loss Curve

65 100 150 250 350 500

125 400 600

50 80 200 300

Cavitation Curve

Inlet pressure (bar)

25.0

20.0

15.0

A

B

10.0

C

B2

B1

0.1

10 100 1000 10000

Q (quantity in m 3 /h)

5.0

maximum velocity: 4,3 m/s

0.0

0 1 2 3 4 5 6 7

Outlet pressure (bar)

A Cavitations

B Possible cavitations

C No cavitations

DN PN A B1 B2 C1 C2 Kg

50 10/16 230 160 85 165 85 20

65/60 10/16 290 170 85 165 95 25

80 10/16 310 175 85 165 100 30

100 10/16 350 190 120 210 110 40

125 10/16 400 200 150 285 125 70

150 10/16 480 210 150 285 145 90

DN PN A B1 B2 C1 C2 Kg

200 10 600 235 200 360 170 150

200 16 600 235 200 360 170 150

250 10 730 280 255 475 200 400

250 16 730 280 255 475 200 400

Max. temperature: 70˚C continuous

WRAS approval applies on sizes up to and including DN250 for above ground applications on

water systems to a maximum 20ºC.

Type Part number Size body PN Box Qty

PRV500 500050549 50 10/16 1

PRV500 500065549 65 10/16 1

PRV500 500080549 80 10/16 1

PRV500 500100549 100 10/16 1

PRV500 500125549 125 10/16 1

PRV500 500150549 150 10/16 1

PRV500 500200549 200 10 1

PRV500 505200549 200 16 1


Boiler

components


BOILER COMPONENTS

SAFETY VALVES

26

MSL

Normal type diaphragm safety valve. Brass CW617N body. Plastic manual discharge knob.

Ni-Cr steel spring. Operating temperature range: -10°C to 110°C. Also with glycol: 50%.

1/2" M/F connections.

MSL at 3 bar according to UDT and is AFNOR, CSTB approved. According to Directive

PED 97/23/CE. Identification number CE1115.

Type Part number Size body bar Box Qty

MSL 0206115 1/2" 1,5 40

MSL 0206525 1/2" 2,5 40

MSL 0206530 1/2" 3 40

MSL 0206540 1/2" 4 40

MSL 0206150 1/2" 5 40

MSL 0206160 1/2" 6 40

MSL 0206170 1/2" 7 40

MSL 0206180 1/2" 8 40

MSL 0206190 1/2" 9 40

MSL 0206199 1/2" 10 40

MSV

Like MSL but with 1/2" female connections.

Type Part number Size body bar Box Qty

MSV 0207110 1/2" 1 40

MSV 0207115 1/2" 1,5 40

MSV 0207525 1/2" 2,5 40

MSV 0207530 1/2" 3 40

MSV 0207540 1/2" 4 40

MSV 0207150 1/2" 5 40

MSV 0207160 1/2" 6 40

MSV 0207170 1/2" 7 40

MSV 0207180 1/2" 8 40

MSV 0207190 1/2" 9 40

MSV 0207199 1/2" 10 40

NEW

FOR SOLAR SYSTEMS

SVE-SOL

Diaphragm safety valve for solar systems. Body of brass CW617N, EN 12165-99.

Elastomeric diaphragm. Discharge pressure factory set and with sealed knob.

Suitable for water, also water mixtures (glycol up to 50%) as according to DIN 4757 Part 1.

Max operating temperature: 160°C.

TÜV SOLAR certified. According to Directive PED 97/23/CEE.

Identification number CE1115.

Type Part number Size body bar Box Qty

SVE-SOL 0215835 1/2" x 3/4" 3,5 40

SVE-SOL 0215840 1/2" x 3/4" 4 40

SVE-SOL 0215860 1/2" x 3/4" 6 40

SVE-SOL 0215880 1/2" x 3/4" 8 40

SVE-SOL 0215899 1/2" x 3/4" 10 40


BOILER COMPONENTS

SAFETY VALVES

SV

Normal type diaphragm safety valve. Brass CW617N body. Plastic manual discharge knob.

Ni-Cr steel spring. Diaphragm and seals of rubber resistant to 140°C. Female connections

with reinforced outlet.

TÜV/TSUP approved. According to Directive PED 97/23/CE.

Identification number CE1115.

27

Type Part number Size body bar Box Qty

SV 0216115 1/2" x 3/4" 1,5 40

SV 0215125 1/2" x 3/4" 2,5 40

SV 0215130 1/2" x 3/4" 3 40

SV 0215104 1/2" x 3/4" 4 40

SV 0216105 1/2" x 3/4" 5 40

SV 0216106 1/2" x 3/4" 6 40

SV 0216107 1/2" x 3/4" 7 40

SV 0216108 1/2" x 3/4" 8 40

SV 0216110 1/2" x 3/4" 10 40

SV 0217215 3/4" x 1" 1,5 40

SV 0217625 3/4" x 1" 2,5 40

SV 0217630 3/4" x 1" 3 40

SV 0217604 3/4" x 1" 4 40

SV 0217205 3/4" x 1" 5 40

SV 0217206 3/4" x 1" 6 40

SV 0217207 3/4" x 1" 7 40

SV 0217208 3/4" x 1" 8 40

SV 0217210 3/4" x 1" 10 40

SV 0218615 1" x 1 1/4" 1,5 40

SV 0218625 1" x 1 1/4" 2,5 40

SV 0218630 1" x 1 1/4" 3 40

SV 0218604 1" x 1 1/4" 4 40

SV 0218305 1" x 1 1/4" 5 40

SV 0218606 1" x 1 1/4" 6 40

SV 0218607 1" x 1 1/4" 7 40

SV 0218608 1" x 1 1/4" 8 40

SV 0218610 1" x 1 1/4" 10 40

SV 0219615 1" x 1 1/4" 1,5 40

SV 0219625 1" x 1 1/4" 2,5 40

SV 0219630 1" x 1 1/4" 3 40

SV 0219604 1" x 1 1/4" 4 40

SV 0219405 1" x 1 1/4" 5 40

SV 0219606 1" x 1 1/4" 6 40

SV 0219607 1" x 1 1/4" 7 40

SV 0219608 1" x 1 1/4" 8 40

SV 0219610 1" x 1 1/4" 10 40

MSM/MSML

Like MSV with BSP connections. Set at 3.0 bar with gauge port. Supplied with and

without gauge.

Type Part number Size body Box Qty

MSML30 C/W GAUGE 0210430 1/2"M x 1/2”F 60

MSM30 C/W GAUGE 0210130 1/2"F x 1/2”F 60

MSML/E - NO GAUGE 0210530 1/2"F x 1/2”F 100


BOILER COMPONENTS

PRESSURE AND TEMPERATURE RELIEF VALVES – 684

28

P&T – PRESSURE AND TEMPERATURE RELIEF VALVES

The valve stem is not in brass as

other valves on the market, but made

of PA6.6 fibreglass and reinforced high

resistance polymer.

This synthetic material presents

exceptional mechanical resistance,

and it is largely used in water meters

and valves.

100% recyclable, PA6.6 is particularly

appreciated by leading-edge industries

for its endurance, insulation, and total

absence of corrosion. This ensures

reliable operation even in a corrosive

atmosphere (ie close to the sea) or with

an outside installation such as a roof top,

and avoids any risk of binding or locking.

Robust and low complexity construction

providing superior reliability and longevity.

Dezincification resistant brass housing.

The control knob, made of PA6GF

instead of a lever type valve, is more

aesthetic and with a modern design to

complement the finish of today’s systems.

The pressure relief function is reliable and

guaranteed by both European ISO9001

production and a wealth of experience

gained in its different world markets.

The diaphragm is in EPDM and for

sanitary use. This piece is cast solid and

the brass insert is vulcanized with the

rubber diaphragm, providing better

reliability and no risk of leakage.

The probe is hung by a innovative

attachment unit.

The probe is accurate and proven.

Exclusively designed and manufactured

by Watts Industries.

Installation example

Approval

WRAS N°1003045

Discharge rating

1/2” and 3/4” Ø 15: 10kW

3/4” Ø 22: 25kW

Technical specifications

Pressure opening

3-4-6-7-10 bar

Temp. opening 92°C

Medium

Sanitary water

Nominal pressure PN 10

Material specifications

Body

Spring

Control knob

Diaphragm

DZR Brass

Steel

PA6 GF

EPDM


BOILER COMPONENTS

PRESSURE AND TEMPERATURE RELIEF VALVES – 684

SELF-CLOSING P&T RELIEF VALVES FOR WATER HEATERS

29

The combined 2 in 1 P&T relief valve provides the least expensive and proven

means for protection against both excessive pressure and temperature emergency

conditions. Provides fully automatic pressure and temperature relief protection for hot water

storage tanks and heaters.

Application

Fully automatic pressure and temperature relief protection for domestic hot water

supply tanks and heaters.

Correct installation

HOT WATER

STORAGE

HEATER

Incorrect installation

HOT WATER

STORAGE

HEATER

HOT WATER

STORAGE

HEATER

Typical installation

Please refer to local Regulation.

• All recognized codes require that a temperature actuated relief valve be installed on a

storage water heater, generally in such a manner that the temperature sensing element is in

contact with hot water in the top 6 inches (152mm) of the tank.

• A drain line must be fitted to each P&T valve.

• The drain line should discharge into a floor drain, check to see that a discharge line is

connected to this valve directing the flow of hot water from the valve to a proper place of

disposal otherwise personal injury may result.

• The drain pipe from the P&T must discharge through a tundish, to a safe and visible position

to alert the householder of a fault condition with the system.

• The P&T relief valves must be installed by qualified technical plumbers in accordance with

current regulations.

• The P&T relief valve must be installed observing the direction of flow indicated by the arrow

on the valve body.

• The 684 P&T relief valves can be fitted vertically or horizontally, but not inverted.

Features

• These P&T valves feature a unique probe with special thermo-bonded coating.

Thermostat is accurate and proven.

• Exclusively designed and manufactured by Watts Industries.

• Temperature nominal setting: 92°C, the valve opens between 89°C and 95°C.

• The European Standard EN 1490: 2000, entitled “Building valves – Combined pressure and

temperature relief valves – Tests and requirements”, describes the constructional and

performance specifications that P&T relief valves must have.

• The Watts Industries series 684 P&T relief valves are certified to comply with the

requirements of this European Standard EN 1490 (for settings 4 – 7 – 10 bar).


BOILER COMPONENTS

PRESSURE RELIEF VALVES AND COMMERCIAL SAFETY RELIEF VALVES

30

P&T – PRESSURE AND TEMPERATURE RELIEF VALVES

Fully automatic temperature and pressure relief valve. Protection for domestic installations of

unvented water heaters, to prevent the temperature of water exceeding 100ºC. Pressed DZR

brass body BSP threads. EPDM diaphragm. Temperature setting 92ºC.

WRAS approved, please contact to confirm part number.

Setting Part number Size Ø inlet – outlet ND

7 bar 68400 M 1/2” – comp.15mm 1/2”

10 bar 68401 M 1/2” – comp.15mm 1/2”

7 bar 68402 Comp.15 mm – comp.15 mm 1/2”

7 bar 68403 M/F 1/2” 1/2”

10 bar 68404 M/F 1/2” 1/2”

3 bar 68450 M/F 3/4” 3/4”

4 bar 68451 M/F 3/4” 3/4”

6 bar 68452 M/F 3/4” 3/4”

7 bar 68453 M/F 3/4” 3/4”

7 bar 68454 M/F 3/4” – 9” probe 3/4”

10 bar 68455 M/F 3/4” 3/4”

7 bar 68456 M 3/4” – comp. 15 mm 3/4”

10 bar 68457 M 3/4” – comp. 15 mm 3/4”

7 bar 68458 M 3/4” – comp. 22 mm 3/4”

10 bar 68459 M 3/4” – comp. 22 mm 3/4”

SERIES 174A SAFETY RELIEF VALVE

Bronze body safety relief valve for all types of hot water boiler equipment with manual lever.

Pressure range 30 to 150 psi (2 to 10 bar). Operating temperature range Min. 1ºC Max.

140ºC. Bronze body screwed BSP Female. Stainless steel spring. Teflon seat (avoids

sticking). EPDM membrane. Available to order – other set pressures.

Pressure Part number Size body Box Qty

3 bar EDP279030 3/4” 1

7 bar EDP279070 3/4” 1

3 bar EDP279150 1” 1

7 bar EDP279190 1” 1

3 bar EDP279220 1-1/4” 1

7 bar EDP279250 1-1/4” 1

3 bar EDP276487 1-1/2” 1

7 bar EDP276490 1-1/2” 1

3 bar EDP279320 2” 1

7 bar EDP279370 2” 1

N36 VACUUM RELIEF VALVE

Water services vacuum relief valve. Automatically vents a closed system if vacuum occurs.

Relieves vacuum conditions which would siphon the water from the system and burn out a

water heater or collapse a tank.

Max. operating pressure: 13.8 bar. Max. operating temperature: 121ºC.

Venting capacity 425 litres/min (air).

Type Part number Size body Box Qty

N36 EDP138457 1/2" NPT 1

N36 EDP0138458 3/4" NPT 1


BOILER COMPONENTS

AUTOMATIC FILLING VALVES AND RELIEF VALVES

AL

ALIMAT

Automatic filling valve complete with check valve, manual shut-off, stainless steel filter, vent

screw. Brass CW617N body. High impact plastic cap.

Pressure gauge connection 1/4" F. Max. upstream pressure: 10 bar.

Adjustable downstream pressure: 0.3 to 4 bar.

31

Type Part number Size body Box Qty

AL 0240100 1/2" MF 30

ALM

Like AL but with pressure gauge MR-RADIAL (50 mm dial, bottom entry, 0 - 4 bar).

Type Part number Size body Box Qty

ALM 0240200 1/2" MF 30

3110C

FILLMATIC

Automatic filling valve complete with 0-6 bar pressure gauge 3112C, self-cleaning check

valve, manual shut-off, sintered bronze filter. Brass CW617N body.

Max. upstream pressure: 10 bar. Adjustable downstream pressure: 0.3 to 4 bar.

Set pressure: 1 bar. Setting ratio: 1 rev. = 0.4 m w.g.

Type Part number Size body Box Qty

3110C 3110C12 1/2" MF 1

CA9C FILLING KIT

Combined filling and backflow preventer unit for boilers up to 45kW.

Backflow preventer CA9C. Fillmatic filling valve. Two ball valves and Y type strainer.

Connections 1/2” BSP Female.

Type Part number Size body Box Qty

CA9C3110C M11801 1/2” 1

Filling valves

Pressure setting

The filling valve is factory set at a pressure of 1 bar.

To adjust for pressures other than the factory setting, merely turn the

screw clockwise to increase the pressure (max. 4 bar) or anti-clockwise to

decrease it (min. 0.3 bar).

0.3

1

2

3

4

5

6

3.5

3

2

1

0.3

1

2

3

3.5

4

5

6

3.5

3

2

1

0.3

Installation

Install the valve according to the direction of the arrow stamped on the

valve body. For quicker filling, make sure the regulating valve is fully open,

even if it is advisable to introduce the water at a sufficiently low speed in

order to avoid formation of water pockets which are difficult to expel. When

filling, the device ensures that all water supplied from the mains is filtered.

10 m H 2 O

10 ÷ 35 m H 2 O


AIR VENTS

AIR VENTS WITH FLOAT

32

MVDR

DUOVENT (PATENTED)

Automatic and manual air vent valve with unscrewable cover for inspection complete with

automatic shut-off valve RIA. Body and cover of brass CW617N. Corrosion-resistant

polyethylene float. Nominal pressure: 12 bar. Max. operating pressure: 8 bar.

Max. temperature: 115°C. Automatic venting capacity at 3 bar: 17.9 litres/min.

Manual venting capacity at 3 bar: 139.5 litres/min. Also suitable for water containing

additive (glycol up to 30%).

Type Part number Size body Box Qty

MVDR 0250708 1/4" 120

MVDR 0250710 3/8" 120

MVDR 0250715 1/2" 120

Advantage of built-in manual discharge

The ever increasing use of horizontal or single-pipe distribution

systems has led to the engineering of networks with small diameter

piping, without slopes and with closed circuits, thus requiring the

development of a special product line for venting air from the

circuits. Compared to the conventional automatic operation with

float determined by the water level in the heating system, the

DUOVENT air vent valve offers the advantage of manual discharge

which allows checking for correct operation and cleaning of the

automatic discharge orifice as well as reducing emptying times.

For manual discharge, unscrew the red cap and push the disc down

with a screwdriver. When held down, it allows the water to flow

through the orifice.

The presence of the shut-off valve allows maintenance operations

without emptying the system.

MANUAL

DISCHARGE

AUTOMATIC

DISCHARGE

Automatic and manual vent at the

various pressures

SHUT-OFF VALVE


AIR VENTS

AIR VENTS WITH FLOAT

MVR

MINIVENT

Automatic air vent valve complete with automatic sealed shut-off valve RIA with

unscrewable cover for inspection. Body and cover of brass CW617N. Corrosion-resistant

polyethylene float. Max. pressure: 12 bar. Max. temperature: 115°C. Also suitable for water

containing additive (glycol up to 30%).

33

Type Part number Size body Box Qty

MVR 0250108 1/4" 10

MVR 0250110 3/8" 10

MVR 0250115 1/2" 10

MKVR

MICROVENT

Automatic vertical air vent valve complete with automatic sealed shut-off valve RIA. Body

and cover of brass CW617N. Sealed with O-Ring. Max. pressure: 10 bar. Max. temperature:

110°C. Also suitable for water containing additive (glycol up to 30%).

Type Part number Size body Box Qty

MKVR 0251310 3/8" 10

MKLR

MICROVENT

Automatic side air vent valve complete with automatic sealed shut-off valve RIA. Body and

cover of brass CW617N. Sealed with O-Ring. Max. pressure: 10 bar. Max. temperature:

110°C. Also suitable for water containing additive (glycol up to 30%).

Type Part number Size body Box Qty

MKLR 0252310 3/8" 10

MKL 0252410 1/2” 10

INTR

INTERVENT

Automatic vertical air vent valve complete with automatic shut-off valve RIA.

Body and cover of brass CW617N.

Max. pressure: 10 bar. Max. temperature: 115°C.

Type Part number Size body Box Qty

INT 0252110 3/8" 10

INT 0252115 1/2" 10


AIR VENTS

AIR VENTS WITH FLOAT

34

NEW

FOR SOLAR SYSTEMS

MV-SOL

MINIVENT

Automatic air vent valve for solar systems with unscrewable cover for inspection. Body

and cover of brass CW617N, 1265-99. Polyethylene float. Seal between reservoir and

cover with O-ring. Connection ND 3/8” - 1/2” DIN - ISO 228/1. Stainless steel (AISI 304)

vacuum breaker (only for ND 3/8”). Max. operating pressure: 12 bar. Max. operating

temperature: 160°C.

Type Part number Size body Box Qty

MV-SOL 0249110 3/8" 10

MV-SOL 0249115 1/2" 10

2161C

FLOATVENT

Automatic vertical air vent valve. Sealed with O-ring. Designed for installation on head

connections of flush manifolds. Brass CW617N body. Max. pressure: 10 bar. Max.

temperature: 110°C.

Type Part number Size body Box Qty

2161C 2161C38 3/8" 50

2161C 2161C12 1/2" 50

2161C 2161C34 3/4" 50

2161C 2161C1 1" 50

2311C

CHECKVENT

Sealed check valve for automatic vertical air vent valve 2161C38.

Type Part number Size body Box Qty

2311C 2311C38 3/8" 50

RIA

Automatic shut-off valve for automatic air vent valves series MVD, MV, MKV, MKL.

Complete with device for quick and total drainage of water from the valve.

Type Part number Size body Box Qty

RIA 0259008 1/4" 10

RIA 0259010 3/8" 10

RIA 0259015 1/2" 10

MOV173

SUPERVENT

Automatic high capacity commercial air vent with screwable cover for inspection.

Incorporates an automatic check valve to isolate water for maintenance. Body and

cover of brass. Max. pressure: 10 bar. Max temperature: 115°C.

Type Part number Size body Box Qty

MOV173 M16300 3/8" 1


AIR VENTS

MANUAL AIR VENT VALVES

VMM

Manual air vent valve for radiators, with adjustable discharge nozzle. Manual discharge

opening through screwdriver or coin. Chrome-plated brass body CW617N. Glass fibre

reinforced nylon handwheel and discharge nozzle body. Sealed on radiator through

O-ring. Max. operating pressure: 10 bar.

35

Type Part number Size body Box Qty

VMM 0256206 1/8" 100

VMM 0256208 1/4" 100

VMM 0256210 3/8" 100

PMC

Manual air vent valve for radiators, with adjustable discharge nozzle. Manual vent opening

through screwdriver, coin. Chrome-plated brass body CW617N. Glass fibre reinforced nylon

discharge nozzle. Sealed on radiator through O-ring. Max. pressure: 10 bar.

Type Part number Size body Box Qty

PMC 0256306 1/8" 100

PMC 0256308 1/4" 100

PMC 0256310 3/8" 100

PMC 0256315 1/2" 100

RSR

Drain valve for radiators. Chrome-plated brass body. Adjustable plastic discharge nozzle.

Sealed on radiator through O-ring.

Type Part number Size body Box Qty

RSR 0256008 1/4" 100

RSR 0256010 3/8" 100

RSR 0256015 1/2" 100

SMM

Manual air vent valve for radiators, with adjustable discharge nozzle. Knurled handwheel.

Chrome-plated brass CW617N body and discharge nozzle. Sealed on radiator through O-

ring. Max. pressure: 10 bar.

Type Part number Size body Box Qty

SMM 0257106 1/8" 100

SMM 0257108 1/4" 100

SMM 0257110 3/8" 100

SMM 0257115 1/2" 100

Manual air vent valve

VMM Handwheel designed PMC CH

for manual opening

Inlet hole smaller than

with screwdriver Valve handwheel PMC

the outlet hole to avoid

or coin. Limit stop on with opening by

infiltration of particles

the screw to avoid screwdriver or coin.

which could block air

the handwheel

discharge.

coming out from the

valve body.

O-ring for easy

assembly and

perfectly tight seal

on the radiator.

Adjustable discharge

nozzle, glass fibre

reinforced nylon

body.

Insert for adjusting

discharge nozzle body.

Wrench CH can be left

inserted on the body.

Insert for opening

valves PMC, RSR

Insert for opening

valve VMM


BOILER COMPONENTS

THERMOMETERS, PRESSURE GAUGES, METERING PIPES AND ACCESSORIES

36

MA-AXIAL

Pressure gauge complete with reference needle. Dial diameter: 50 mm.

1/4" M axial connection.

According to ISPESL.

Type Part number Scale Box Qty

MA50/4 0310104 0-4 bar 10

MA50/6 0310106 0-6 bar 10

MA50/10 0310110 0-10 bar 10

MA50/16 0310116 0-16 bar 10

MR-RADIAL

Pressure gauge complete with reference needle. Dial diameter: 50 mm.

1/4" M radial connection.

According to ISPESL.

Type Part number Scale Box Qty

MR50/4 0312104 0-4 bar 10

MR50/6 0312106 0-6 bar 10

MR50/10 0312110 0-10 bar 10

MR50/16 0312116 0-16 bar 10

TMAX

Thermometer/pressure gauge with ABS case, complete with sheath and shut-off valve.

Dial diameter: 80 mm. 1/2" M axial connection. Temperature scale: 0° - 120°C.

According to ISPESL.

Type Part number Scale Box Qty

TMAX/2 0332002 0-2,5 bar 10

TMAX/4 0332004 0-4 bar 10

TMAX/6 0332006 0-6 bar 10

TMRA

Thermometer/pressure gauge with ABS case, complete with sheath and shut-off valve.

Dial diameter: 80 mm. 1/2" M radial connection. Temperature scale: 0° - 120°C.

According to ISPESL.

Type Part number Scale Box Qty

TMRA/2 0333002 0-2,5 bar 10

TMRA/4 0333004 0-4 bar 10

TMRA/6 0333006 0-6 bar 10


BOILER COMPONENTS

THERMOMETERS, PRESSURE GAUGES , METERING PIPES AND ACCESSORIES

MA60-AXIAL

Pressure gauge complete with reference needle. Dial diameter: 60 mm.

1/4"M axial connection.

According to ISPESL.

37

Type Part number Scale Box Qty

MA60-AXIAL 0316204 0-4 bar 10

MA60-AXIAL 0316206 0-6 bar 10

MA60-AXIAL 0316210 0-10 bar 10

MA60-AXIAL 0316216 0-16 bar 10

MA60-RADIAL

Pressure gauge complete with reference needle. Dial diameter: 60 mm.

1/4" male radial connection.

According to ISPESL.

Type Part number Scale Box Qty

MA60-AXIAL 0318204 0-4 bar 10

MA60-AXIAL 0318206 0-6 bar 10

MA60-AXIAL 0318210 0-10 bar 10

MA60-AXIAL 0318216 0-16 bar 10

TB

Contact thermometer with bimetallic helix element. Complete with steel sheet spring for

holding on pipe. Black painted steel case. Chrome-plated rim. Scale divisions 1°C.

Type Part number Scale Face Box Qty

TB 0308060 0-120 °C 63 mm 10

3112C

Spare pressure gauge, 0 to 6 bar, for FILLMATIC.

Type Part number Scale Size body Box Qty

3112C 3112C 0-6 bar 1/4" 1


Expansion

vessels


EXPANSION VESSELS

EXPANSION VESSELS FOR HEATING SYSTEMS

40

SELECTION CHART

Elements necessary for the calculation of the proper heating systems:

• expansion coefficient of water 0,029

• initial pressure = static height of the plant

• final pressure: 3 bar

Selection can also be based on the system heating capacity (calculation based on 12 litres of water per 1 kW).

Tanks Volume Precharge Max. plant Average time 80 °C (90-10) Dimensions Connector

capacity utilised pressure Height Water Maximum power boiler Ø H

litres litres bar m instal. Ltr KW Kcal/h

5 3.1 0.5 5 107 8908 7660 160 320 ¾”

2.5 1 10 86 7183 6177

1.9 1.5 15 65 5400 4640

8 5 0.5 5 172 14330 12320 200 330 ¾”

4 1 10 138 11500 9890

3 1.5 15 103 8580 7380

12 7.5 0.5 5 259 21580 18560 270 300 ¾”

6 1 10 207 17250 14840

4.5 1.5 15 155 12910 11100

18 11.3 0.5 5 380 32500 27950 270 420 ¾”

9 1 10 310 25830 22210

6.7 1.5 15 231 19250 16580

25 15.6 0.5 5 538 44830 38550 290 450 ¾”

12.5 1 10 431 35920 30890

9.4 1.5 15 324 27000 23220

40 25 0.5 5 862 71800 61750 320 560 ¾”

20 1 10 690 57500 49500

15 1.5 15 517 43000 37000

35 22 0.5 5 754 62859 54059 380 380 ¾”

18 1 10 603 50287 43247

13 1.5 15 453 37716 32435

50 31 0.5 5 1078 89799 77227 380 380 ¾”

25 1 10 862 71839 61782

19 1.5 15 647 53879 46336

80 50 0.5 5 1724 143678 123563 450 450 ¾”

40 1 10 1379 114943 98851

30 1.5 15 1034 86207 74138

100 63 0.5 5 2155 179598 154454 450 450 ¾”

50 1 10 1724 143678 123563

38 1.5 15 1293 107759 92672

60 37.5 0.5 5 1293 107758 92670 380 690 ¾”

30 1 10 1034 86206 74135

22.5 1.5 15 775 64655 55600

80 50 0.5 5 1724 143700 123600 450 680 ¾”

40 1 10 1379 115000 98900

30 1.5 15 1034 86100 74000

20 2 20 690 57500 49500

100 62.5 0.5 5 2155 179600 154500 450 760 1”

50 1 10 1724 143700 123600

37.5 1.5 15 1293 107700 92600

25 2 20 862 71800 61750

150 93.8 0.5 5 3234 269500 231770 550 785 1½”

79 1 10 2500 215500 185330

56.3 1.5 15 1941 161750 139110

37.5 2 20 1293 107750 92670

200 125 0.5 5 4310 358170 308886 550 1010 1½”

100 1 10 3448 287330 247100

75 1.5 15 2586 215500 185230

50 2 20 1724 143570 123560

250 156 0.5 5 5379 448000 358000 630 1000 1½”

125 1 10 4310 359000 308000

94 1.5 15 3241 270000 232000

63 2 20 2172 181000 135000

300 187.5 0.5 5 6468 538830 463400 630 1180 1½”

150 1 10 5172 431000 370600

112.5 1.5 15 3879 323250 278000

75 2 20 2586 216500 186330

500 312.5 0.5 5 10776 898000 773000 780 1260 1½”

250 1 10 8621 718000 617000

187.5 1.5 15 6466 539000 463000

125 2 20 4310 359000 309000

62.5 2.5 25 2155 180000 155000

700 437.5 0.5 5 15086 1260000 1084000 780 1620 1½”

350 1 10 12069 1005000 864000

262.5 1.5 15 9052 754000 648000

175 2 20 6034 503000 432000

87.5 2.5 25 3017 251000 216000


EXPANSION VESSELS

EXPANSION VESSELS FOR HEATING SYSTEMS

EXTRAVAREM LR

Expansion vessel with fixed membrane for central heating and boiler systems.

Carbon steel body with red epoxy polyester paint finish, carbon steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 5 bar.

Connection – ¾”

Precharged to 1.5 bar.

41

Part Number Capacity litre Height mm Diameter mm

VEX5 5 320 160

VEX8 8 330 200

VEX12 12 315 270

VEX18 18 420 270

VEX25 25 450 290

VEX40 40 582 320

STARVAREM LR

Expansion vessel with feet and diaphragm membrane for central heating and boiler systems.

Carbon steel body with red epoxy polyester paint finish, carbon steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 6 bar.

Connection – ¾”

Precharged to 1.5 bar.

Part Number Capacity litre Height mm Diameter mm

VST35F 35 392 380

VST50F 50 485 380

VST80F 80 692 450

VST100F 100 763 450

MAXIVAREM LR

Expansion vessel with replaceable membrane for central heating and boiler systems.

Carbon steel body with red epoxy polyester paint finish, carbon steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 6 bar.

Connection – 60-100 Ltr 1” Larger Sizes 1½”

Precharged to 1.5 bar.

Part Number Capacity litre Height mm Diameter mm

VMA60 60 550 380

VMA80 80 735 450

VMA100 100 790 450

VMA150 150 800 550

VMA200 200 1080 550

VMA250 250 984 630

VMA300 300 1177 630

VMA400 400 1540 630

VMA500 500 1283 780

VMA600 600 1340 780

VMA700 700 1685 780


EXPANSION VESSELS

EXPANSION VESSELS FOR HEATING SYSTEMS

42

EXTRAVAREM LC WITH STAINLESS STEEL FLANGE

Expansion vessel with fixed membrane for domestic hot water systems.

Carbon steel body with white epoxy polyester paint finish, stainless steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 2 litre 10 bar all others 8 bar.

Connection – 2 litre – ½” all other sizes ¾”

Precharged to 3.5 bar.

Part Number Capacity litre Height mm Diameter mm

VEXP016 0.16 105 65

VEXP2 2 240 125

VEXP5 5 300 160

VEXP8 8 330 200

VEXP12 12 315 270

VEXP18 18 420 270

VEXP24 24 335 360

VEXP25 25 450 290

INTERVAREM – POTABLE

Expansion vessel with replaceable membrane for potable water.

Carbon steel body with blue epoxy polyester paint finish, carbon steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 8 bar.

Connection – 1”

Precharged to 2.0 bar.

Part Number Capacity litre Height mm Diameter mm

VINP5 5 320 160

VINP8 8 330 200

VINP12 12 315 270

VINP19 19 420 270

VINP24 24 335 360

VINP40 40 582 320

INTERVAREM – POTABLE WITH STAINLESS STEEL FLANGE

Expansion vessel with replaceable membrane for potable water.

Carbon steel body with blue epoxy polyester paint finish, stainless steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 8 bar.

Connection – ¾”

Precharged to 3.5 bar.

Part Number Capacity litre Height mm Diameter mm

VINP5SS 5 329 163

VINP8SS 8 330 200

VINP12SS 12 315 270

VINP19SS 19 420 270

VINP20HSS 20 492 290

VINP24VSS 24 335 360

VINP40SS 40 582 320

VINP50SS 50 604 379


EXPANSION VESSELS

EXPANSION VESSELS FOR HEATING SYSTEMS

MAXIVAREM LS HORIZONTAL – POTABLE

Horizontal expansion vessel with replaceable membrane for potable water

Carbon steel body with blue epoxy polyester paint finish, carbon steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 10 bar.

Connection – 60-100 Ltr 1” Larger Sizes 1½”

Precharged to 2.0 bar.

43

Part Number Capacity litre Height mm Diameter mm

VMAP40H 40 580 345

VMAP50H 50 615 430

VMAP60H 60 680 382

VMAP80H 80 680 450

VMAP100H 100 780 450

VMAP200H 200 1030 550

VMAP300H 300 1185 630

MAXIVAREM LS HORIZONTAL – POTABLE WITH STAINLESS STEEL FLANGE

Horizontal expansion vessel with replaceable membrane for potable water

Carbon steel body with blue epoxy polyester paint finish, stainless steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 10 bar.

Connection – 60-100 Ltr 1” Larger Sizes 1½”

Precharged to 2.0 bar.

Part Number Capacity litre Height mm Diameter mm

VMAP40HSS 40 580 345

VMAP50HSS 50 615 430

VMAP60HSS 60 680 382

VMAP80HSS 80 680 450

VMAP100HSS 100 780 450

VMAP200HSS 200 1030 550

VMAP300HSS 300 1185 630

MAXIVAREM LC VERTICAL – POTABLE

Vertical expansion vessel with replaceable membrane for potable water

Carbon steel body with blue epoxy polyester paint finish, stainless steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 10 bar.

Connection – 60-100 Ltr 1” Up to 400 Ltr 1½”

Precharged to 2.0 bar.

Part Number Capacity litre Height mm Diameter mm

VMAP60 60 550 380

VMAP80 80 735 450

VMAP100 100 790 451

VMAP150 150 800 550

VMAP200 200 1080 550

VMAP250 250 984 630

VMAP300 300 1177 630

VMAP400 400 1540 630


EXPANSION VESSELS

EXPANSION VESSELS FOR HEATING SYSTEMS

44

MAXIVAREM LS VERTICAL – POTABLE WITH STAINLESS STEEL FLANGE

Vertical expansion vessel with replaceable membrane for potable water

Carbon steel body with blue epoxy polyester paint finish, stainless steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – 10 bar.

Connection – 60-100 Ltr 1” up to 750 Ltr 1½” 1000 Ltr – 2”

Precharged to 2.0 bar.

Part Number Capacity litre Height mm Diameter mm

VMAP50VSS 50 770 382

VMAP60VSS 60 845 382

VMAP80VSS 80 851 450

VMAP100VSS 100 950 450

VMAP200VSS 200 1255 550

VMAP300VSS 300 1405 630

VMAP500VSS 500 1550 780

VMAP750VSS 750 1940 780

VMAP1000VSS 1000 2200 980

SOLARVAREM LR – SOLAR WITH STAINLESS STEEL FLANGE

Expansion vessel with replaceable membrane for solar energy systems.

Carbon steel body with red epoxy polyester paint finish, stainless steel flange.

Max. system temperature – 99ºC.

Max. pressure of vessel – up to 40 litre – 8 bar larger sizes 6 bar.

Connection – 5 - 80 Ltr ¾” 100 Ltr 1” 200 & 300 Ltr 1½”

Precharged to 2.5 bar.

Part Number Capacity litre Height mm Diameter mm

VSOL5W 5 315 160

VSOL8W 8 330 200

VSOL12W 12 300 270

VSOL19W 19 405 270

VSOL25W 25 450 290

VSOL40W 40 560 320

VSOL60 60 730 380

VSOL80 80 735 450

VSOL100 100 790 450

VSOL200 200 1080 550

VSOL300 300 1177 630

FLATVAREM – FOR HEATING SYSTEMS – AVAILABLE ON REQUEST


EXPANSION VESSELS

EXPANSION VESSELS FOR HEATING SYSTEMS

SEALED SYSTEM KIT

For installation in central heating and boiler systems.

Each kit includes a heating vessel, pressure relief valve with gauge, manifold, mounting

bracket (options below available) and combined filling loop, isolator and double check valve.

45

Part Number Capacity litre Description Box Qty

SSC5 5 Sealed system filing kit 1

SSC8 8 Sealed system filing kit 1

SSC12 12 Sealed system filing kit 1

SSC18 18 Sealed system filing kit 1

SSC24 24 Sealed system filing kit 1

MOUNTING KIT

Includes bracket, nuts and screws.

Part Number Description Box Qty

BRKT1 Mounting kit for vessels 4 to 25 litre 1

BRKT2 Mounting kit for o vessels 35 & 50 litre 1

MOUNTING KIT

Wrap round bracket comprising strap, wall bracket and fixing screws.

Part Number Description Box Qty

ER24KIT Mounting kit for vessels 1

V5O920 Mounting kit for vessels 1

MANIFOLD CROSS

Plain brass manifold cross with 15mm compression inlet, 3/4” BSP Female vessel connection,

1/2” BSP male relief valve connection, plain end for connection to double check valve with

15mm compression ends.

Part Number Description Box Qty

CORE641002 Four way manifold cross 1

SPARE BLADDERS – AVAILABLE ON REQUEST


Balancing valves


WATTFLOW BP BALANCING VALVES

48

APPLICATIONS OF WATTFLOW BP

Regulation of heating, ventilation and air-conditioning systems. Balancing of drinking water

circulation pipes as well as solar and heat pump systems. Excess or insufficient feed to consumer

circuits in HVAC systems is the main cause of malfunctions. WattFlow balancing valves take care

of hydraulic balancing; they are also easy to operate and require no special training. WattFlow

balancing valves can therefore be used to regulate HVAC systems quickly and with maximum

precision without the need for expensive measuring computers or special tools.

The VOB/C – DIN 18380 standard requires the hydraulic balancing of pipelines, as does DIN

EN 12828. The pipe systems must be designed in such a way that heating water is fed to all

parts of the heating system with the necessary heating energy. The following factors (among

others) must be taken into account: temperature, operating pressure, pressure loss and noise

levels (due to flow speed, for example). Hydraulically correctly balanced systems can be

regulated with greater precision and therefore save both energy and money.

DESIGN/MODE OF OPERATION

All WattFlow BP balancing valves are equipped as standard with an integrated flowmeter

which continuously measures the current flow volume and indicates it on a scale protruding

from the side of the housing. The scale is graduated in l/min and can be rotated about its own

axis, thereby allowing optimum positioning for convenient and accurate read-off of values. The

display is located away from the flow measurement zone to protect it against dirt and debris.

In other words, the medium does not flow directly past the sight glass. The inclined

seat valve with regulating cone (also integrated) regulates the flow volume. The selected

valve characteristic ensures that the valve stroke is spread across several rotations of the

spindle. This guarantees maximum setting accuracy. The flow-friendly valve design ensures

minimum noise emissions. The WattFlow balancing valves are not affected by the flow profile

at the inlet, and a straight inlet route of the same length as the housing is therefore generally

adequate. The valves can be mounted in any desired orientation, and the correct direction of

flow is indicated by an arrow on the housing.

TENDER TEXT FOR WATTFLOW BP

Balancing valve for rapid and exact balancing of consumer circuits in HVAC systems and drinking water circulation pipelines.

Integrated flow display with rotatable indicator scale marked in l/min. Actual flow volume can be read off directly without the

need for measuring computers or charts. The sight glass of the flow indicator is not installed directly in the medium flow and

is therefore protected against soiling. Measuring accuracy ± 10% of measuring value. The flow volume is adjusted via

several spindle rotations of an angle seat valve. Installation orientation as desired in the flow or return lines. Nominal width

DN ..., housing made of brass. Sight glass made of impact- and temperature-resistant plastic. Spring made of stainless

steel. Gaskets made of EPDM. Max. operating temperature TB 100° C at max. operating pressure PB 10 bar.

Article-no. Type Dimension Connection Flow rate Kvs MemoStop

3498300 SRV15-AG DN 15 1“ AG 0,5 – 7 l/min 1,5 without

3498305 SRV15-AG DN 15 1“ AG 2 – 16 l/min 3,0 without

3498310 SRV20-AG DN 20 1“ AG 4 – 36 l/min 3,5 without

3498315 SRV15-KVSR DN 15 KVSR 15 mm 0,5 – 7 l/min 1,5 without

3498320 SRV15-KVSR DN 15 KVSR 15 mm 2 – 16 l/min 3,0 without

3498325 SRV15-KVSR DN 20 KVSR 15 mm 4 – 36 l/min 3,5 without

3498330 SRV15-KVSR DN 15 KVSR 22 mm 0,5 – 7 l/min 1,5 without

3498335 SRV15-KVSR DN 15 KVSR 22 mm 2 – 16 l/min 3,0 without

3498340 SRV20-KVSR DN 20 KVSR 22 mm 4 – 36 l/min 3,5 without

3498285 SRV15-KVSR DN 15 KVSR 15/22 mm 0,5 – 7 l/min 1,5 without

3498290 SRV15-KVSR DN 15 KVSR 15/22 mm 2 – 16 l/min 3,0 without

3498295 SRV15-KVSR DN 20 KVSR 15/22 mm 4 – 36 l/min 3,5 without

3498355 SRV25-IG DN 25 1“ IG 5 – 50 l/min 5,5 with

3498360 SRV32-IG DN 32 1 ¼“ IG 10 – 80 l/min 9,0 with

3498365 SRV40-IG DN 40 1 ½“ IG 15 – 120 l/min 13,0 with

3498370 SRV50-IG DN 50 2“ IG 20 – 200 l/min 18,0 with

3498345 SRV25-AG DN 25 1 ¼“ AG 5 – 50 l/min 5,5 with

3498350 SRV32-AG DN 32 1 ½“ AG 10 – 80 l/min 9,0 with

on request SRV40-AG DN 40 2“ AG 15 – 120 l/min 13,0 with

on request SRV50-AG DN 50 2 ¼“ AG 20 – 200 l/min 18,0 with


WATTFLOW OL BALANCING VALVES

APPLICATIONS OF WATTFLOW OL

Regulation of consumer circuits in heating, ventilation and air-conditioning systems. Balancing of

drinking water circulation pipes. Excess or insufficient feed to consumer circuits in HVAC systems

is not seldom the cause of malfunctions. WattFlow OL balancing valves were developed to

provide planners and operators with an extremely simple, cost-efficient and effective means of

regulating consumer circuits in heating and cooling systems. WattFlow OL balancing valves can

be used to regulate HVAC systems rapidly and with maximum precision without the need for

training of personnel.

49

Hydraulically correctly balanced systems can be regulated with greater precision and therefore

save both energy and money.

DESIGN/MODE OF OPERATION

All WattFlow OL balancing valves are equipped with an integrated flowmeter which continuously

displays the current flow volume in litres/min. The advantages of the flow indicator mounted

outside the housing axis are as follows:

• As the flow indicator is not positioned directly in the medium flow, the display is protected

against dirt and stays clearly visible for long periods.

• The scale element graduated in litres/min can be rotated about its own axis, thereby allowing

convenient read-off of the indicated volume flow in any mounting orientation.

• WattFlow OL balancing valves and their flow indicators do not require any special inlet route.

The length of the straight pipe may also be lower than the recommended straight pipe length

(equal to the housing length).

• The valves can be mounted in any desired orientation; the correct direction of flow is

indicated by an arrow on the housing.

TENDER TEXT FOR WATTFLOW OL

WattFlow OL balancing valve with inclined seat valve for rapid and exact hydraulic balancing of consumer circuits in HVAC

systems. Balancing valve with integrated flow indicator which is not installed directly in the medium flow and is therefore

protected against soiling. Flow indicator with rotatable indicator scale. Nominal width DN ..., max. operating temperature

100°C at an operating pressure of 6 bar or 70°C at 10 bar. Housing made of brass. Flow indicator made of impact- and heatresistant

plastic. Spring made of stainless steel. Gaskets made of EPDM.

Article no. Type Dimension Connection Flow rate Kvs

3498000 SRVOL15-AG DN 15 ¾“ AG* 1 – 8 l/min 1,7

On request SRVOL15-IGAG DN 15 ½“ IG x ¾“ AG* 1 – 8 l/min 1,7

3498010 SRVOL15-IG DN 15 ½“ IG 1 – 8 l/min 1,7

3498011 SRVOL20-KVSR DN 20 15 mm 1 – 8 l/min 1,7

3498012 SRVOL20-KVSR DN 20 22 mm 1 – 8 l/min 1,7

3498013 SRVOL20-KVSR DN 20 15/22 mm 1 – 8 l/min 1,7

3498015 SRVOL20-AG DN 20 1“ AG 2 – 16 l/min 2,0

3498020 SRVOL20-IG DN 20 ¾“ IG 2 – 16 l/min 2,0

3498025 SRVOL20-KVSR DN 20 15 mm 2 – 16 l/min 2,0

3498030 SRVOL20-KVSR DN 20 22 mm 2 – 16 l/min 2,0

3498035 SRVOL20-KVSR DN 20 15/22 mm 2 – 16 l/min 2,0

*eurocone, AG = male thread, IG = female thread, KVSR = compression fitting


WATTFLOW BP BALANCING VALVES

50

DIMENSIONS

B

Z

operating pressure PB [bar]

12

10

8

The parameters pressure and and

6 temperature

temperature

must

must

be

be

within

within

the

the limits shown. Long-therm

limits shown. Longterm operation at

4 operation at temperatures above

temperatures

100° C/212° F

above

(shaded

100°C/212°F

area) is to

2 (shaded be avoided. area) is to be avoided.

0

20 40 60 80 100

operating temperature TB [°C]

120

140

1.000

A BC D E F G

Flowindication 10 Liter/min

(Example)

B

Y

X

Z

pressure drop [mbar]

100

10

1

10

100

flow rate [L/min]

Pressure drop curve Flow rate Kvs

A 0,5 – 7 L/MIN 1,3

B 2 – 16 L/MIN 3,0

C 4 – 36 L/MIN 3,5

D 5 – 50 L/MIN 5,5

E 10 – 80 L/MIN 9,0

F 15 – 120 L/MIN 13,0

G 20 – 200 L/MIN 18,0

1.000

Article no. Type Dimension A B L L1 H H1 X Y Z

3498300 SRV15-AG DN 15 1“ AG =A 86 --- 68 37 --- --- SW 4

3498305 SRV15-AG DN 15 1“ AG =A 86 --- 68 37 --- --- SW 4

3498310 SRV20-AG DN 20 1“ AG =A 86 --- 68 37 --- --- SW 4

3498315 SRV15-KVSR DN 15 15/22 mm =A 86 106 68 37 SW 32 --- SW 4

3498320 SRV15-KVSR DN 15 15/22 mm =A 86 106 68 37 SW 32 --- SW 4

3498325 SRV15-KVSR DN 20 15/22 mm =A 86 106 68 37 SW 32 --- SW 4

3498330 SRV15-KVSR DN 15 22 mm =A 86 106 68 37 SW 32 --- SW 4

3498335 SRV15-KVSR DN 15 22 mm =A 86 106 68 37 SW 32 --- SW 4

3498340 SRV20-KVSR DN 20 22 mm =A 86 106 68 37 SW 32 --- SW 4

3498285 SRV15-KVSR DN 15 15/22 mm =A 86 106 68 37 SW 32 --- SW 4

3498290 SRV15-KVSR DN 15 15/22 mm =A 86 106 68 37 SW 32 --- SW 4

3498295 SRV15-KVSR DN 20 15/22 mm =A 86 106 68 37 SW 32 --- SW 4

3498355 SRV25-IG DN 25 1“ IG =A 120 --- 73 69 --- SW 43 SW 6

3498360 SRV32-IG DN 32 1¼“ IG =A 135 --- 77 77 --- SW 49 SW 6

3498365 SRV40-IG DN 40 1½“ IG =A 153 --- 80 78 --- SW 61 SW 6

3498370 SRV50-IG DN 50 2“ IG =A 176 --- 85 87 --- SW 70 SW 6

3498345 SRV25-AG DN 25 1¼“ AG =A 120 --- 73 69 --- --- SW 6

3498350 SRV32-AG DN 32 1½“ AG =A 135 --- 77 77 --- --- SW 6

On request SRV40-AG DN40 2“ AG =A 153 --- 80 78 --- --- SW 6

On request SRV50-AG DN 50 2¼“ AG =A 176 --- 85 87 --- --- SW 6

AG = male thread, IG = female thread, KVSR = compression fitting

Technical Specifications

Max. operating temperature 100°C 1)

Min. operating temperature -20°C 2)

Max. operating pressure 10 bar 1)

Accuracy of flowmeter

±10% of measuring value

1) Pay attention to the pressure/temperature diagram

2) When using appropriate antifreezing compounds

Material Specifications

Housing

Flowmeter

Spring

Gaskets

Brass

Impact- and temperature

resistant plastic

Stainless steel

EPDM


X

WATTFLOW OL BALANCING VALVES

DIMENSIONS

operating pressure PB [bar]

12

10

8

6

4

2

0

20

Pressure/temperature diagram

40 60 80 100

120

51

1.000

Pressure drop diagram

A B

Y

Flow indication

pressure drop [mbar]

100

2 Litre/min

10

1

10

flow rate [l/min]

100

Pressure drop curve Flow rate Kvs

A 1 – 8 L/MIN 1,7

B 2 – 16 L/MIN 2,0

Article no. Type Dimension A B L L1 L2 H H1 X Y

3498000 SRVOL15-AG DN 15 ¾“ AG* = A 81 --- 17 67 23 --- ---

On request SRVOL15-IGAG DN 15 ½“ IG ¾“ AG** 81 --- 17 67 23 --- SW 27

3498010 SRVOL15-IG DN 15 ½“ IG = A 81 --- 17 67 23 --- SW 27

3498011 SRVOL20-KVSR DN 20 15 mm = A 86 106 7 71 27 SW 32 ---

3498012 SRVOL20-KVSR DN 20 22 mm = A 86 106 7 71 27 SW 32 ---

3498013 SRVOL20-KVSR DN 20 15/22 mm = A 86 106 7 71 27 SW 32 ---

3498015 SRVOL20-AG DN 20 1“ AG = A 86 --- 15 71 27 --- ---

3498020 SRVOL20-IG DN 20 ¾“ IG = A 86 --- 15 71 27 --- SW 34

3498025 SRVOL20-KVSR DN 20 15 mm = A 86 106 5 71 27 SW 32 ---

3498030 SRVOL20-KVSR DN 20 22 mm = A 86 106 5 71 27 SW 32 ---

3498035 SRVOL20-KVSR DN 20 15/22 mm = A 86 106 5 71 27 SW 32 ---

*eurocone, AG = male thread, IG = female thread, KVSR = compression fitting

Technical Specifications

Max. operating temperature 100°C 1)

Min. operating temperature -10°C 2)

Max. operating pressure 6 bar 1)

Accuracy of fl owmeter ±10% of measuring value 3)

1) Pay attention to the pressure/temperature diagram

2) When using appropriate antifreezing compounds

3) Valid for Water-Glycol above 20°C

Material Specifications

Housing

Flowmeter

Spring

Gaskets

Brass

Impact- and temperatureresistant

plastic

Stainless steel

EPDM

Subject to technical modifications


Microflex


MICROFLEX

54

THE UNIQUE ASSETS OF MICROFLEX:

FLEXIBILITY, DURABILITY AND EXPERTISE

FLEXIBILITY

• VERY EXTENSIVE RANGE OF PIPES AND

ACCESSORIES – COMPLETE SYSTEM

• AVAILABLE TO ORDER OR ON FULL COILS UP TO 100 M

FOR LARGE NETWORKS – NO PIPE WASTAGE

• FAST INSTALLATION EVEN IN THE EVENT OF BENDS,

OBSTACLES, WALL FEED-THROUGHS AND BRANCHES

• NO COMPENSATORS NEEDED THANKS TO THE PIPING

SYSTEM’S SELF-COMPENSATORY BEHAVIOUR

• NO SKILLED WELDERS NEEDED FOR CONNECTIONS

• NO SPECIAL TOOLS NEEDED

• LIMITED WEIGHT FACILITATES EASY INSTALLATION

• SIMPLE AND SAFE TO OPERATE MODULAR SYSTEM

OF CONNECTIONS, INCLUDING COUPLINGS AND

ACCESSORIES

• FAST INSTALLATION AND ACCELERATED ASSEMBLY

CUT INSTALLATION COSTS SIGNIFICANTLY

DURABILITY

• HIGH-GRADE RAW MATERIALS ENSURE A VERY LONG

PRODUCT LIFE

• UNIQUE DOUBLE WALL OUTSIDE CASING IN HDPE

PROVIDES EXTRA PROTECTION TO THE TUBE

• SOPHISTICATED GEOMETRY OF OUTSIDE CASING

ENSURES UNPARALLELED FLEXIBILITY AND HIGH

RESISTANCE TO IMPACTS AND PRESSURE

• VERY ELASTIC THERMAL FOAM INSULATION IN PE-X

WITH CLOSED CELL STRUCTURE – EXCELLENT LONG-

TERM INSULATION QUALITIES AND HIGH Μ FACTOR

• INSULATING CENTREPIECE GUARANTEES AN

EFFECTIVE SEPARATION OF INLET AND OUTLET PIPES

• CORROSION-FREE TRANSPORT PIPE IN PE-XA (OR PE),

UNIQUE CHEMICAL RESISTANCE, VERY LONG LIFE EVEN

UNDER HIGH PRESSURES AND TEMPERATURES,

MAXIMUM RESISTANCE TO CRACKS CAUSED BY AGEING

• SYSTEM PIPES ARE HIGHLY RESISTANT TO EXTERNAL

INFLUENCES, SUCH AS STRESS, MICRO ORGANISMS

AND TEMPERATURE SWINGS


MICROFLEX

PRODUCTS BY APPLICATION

Application Fluid Pipe T° max fluid Pressure Microflex solutions

Heating water PE-Xa 95°C 6 bar M…C MD…C MQ…

55

Hot (potable)water PE-Xa 95°C 10 bar M…S MD…S MQ…

Cold (potable) water HDPE 25°C 16 bar M(V)…PE MD…PE

Cooling water HDPE -10°C 16 bar M(V)…PE MD…PE

YOUR GUARANTEE OF QUALITY


MICROFLEX

CENTRAL HEATING

56

MICROFLEX ® UNO

Single flexible, pre-insulated, self-compensating, underground pipe. Especially suitable for

heating water, but also for (hot) potable water, wastewater and other fluids.

Corrosion-resistant transport pipe in cross-linked PE-Xa in accordance with DIN 16892/16893,

with yellow oxygen diffusion barrier in accordance with DIN 4726. Thermal, elastic, CFC-free

foam insulation made from cross-linked PE-X with closed microcellular structure. Minimal

water absorption capacity of


MICROFLEX

CENTRAL HEATING

MICROFLEX ® DUO

Double flexible pre-insulated, self-compensating, underground pipe. Especially suitable for

heating water, but also for (hot) potable water, wastewater and other fluids. Corrosion-resistant

transport pipe in cross-linked PE-Xa in accordance with DIN 16892/16893, with yellow oxygen

diffusion barrier in accordance with DIN 4726. Thermal, elastic, CFC-free foam insulation made

from cross-linked PE-X with closed microcellular structure. Minimal water absorption capacity

of


MICROFLEX

SANITARY

58

MICROFLEX ® UNO

Single flexible pre-insulated, self-compensating, underground pipe. Especially suitable for hot

and cold potable water, but also for wastewater and other fluids. Corrosion-resistant transport

pipe in cross-linked PE-Xa in accordance with DIN 16892/16893. Thermal, elastic, CFC-free

foam insulation made from cross-linked PE-X with closed microcellular structure. Minimal

water absorption capacity of


MICROFLEX

SANITARY

MICROFLEX ® DUO

Single flexible pre-insulated, self-compensating, underground pipe. Especially suitable for hot

and cold potable water, but also for wastewater and other fluids. Corrosion-resistant transport

pipe in cross-linked PE-Xa in accordance with DIN 16892/16893. Thermal, elastic, CFC-free

foam insulation made from cross-linked PE-X with closed microcellular structure. Minimal

water absorption capacity of


MICROFLEX

CENTRAL HEATING AND SANITARY

60

MICROFLEX ® QUADRO

Flexible pre-insulated, self-compensating underground pipe comprising two heating pipes and

two sanitary pipes. Designed for heating water (flow and return), and equipped with a sanitary

hot water pipe and a pipe for the circulation loop. Corrosion-resistant transport pipe in crosslinked

PE-Xa in accordance with DIN 16892/16893, with yellow oxygen diffusion barrier in

accordance with DIN 4726 for the heating water pipes. Thermal, elastic, CFC-free foam

insulation made from cross-linked PE-X with closed microcellular structure. Minimal water

absorption capacity of


MICROFLEX

UNDERGROUND INSULATION KITS

INSULATED T-PIECE KIT

Guarantees complete insulation and sealing of branch connections between Uno, Duo and

Quadro pipes. Kit comprises 2 halves in HDPE, rock wool insulation, sealer kit, stainless steel

bolts and assembly instructions.

61

Microflex pipe

with casing

d out

L W H Weight

Art. No. mm mm mm mm kg

MT129075 125/90/75 960 590 200 5.5

MT201612 200/160/125 1170 750 270 8.0

Heat shrinkable caps to be ordered separately

INSULATED ELBOW 90º PIECE KIT

Guarantees complete insulation and sealing of perpendicular connections between Uno, Duo

and Quadro pipes. Kit comprises 2 halves in HDPE, rock wool insulation, sealer kit, stainless

steel bolts and assembly instructions.

Microflex pipe

with casing

d out

L W H Weight

Art. No. mm mm mm mm kg

MH201612 200/160/125 740 740 270 7.5

Heat shrinkable caps to be ordered separately

INSULATED I-PIECE KIT

Guarantees complete insulation and sealing of straight extensions of Uno, Duo and Quadro

pipes. Kit comprises 2 halves in HDPE, rock wool insulation, sealer kit, stainless steel bolts

and assembly instructions.

Microflex pipe

with casing

d out

L W H Weight

Art. No. mm mm mm mm kg

MM129075 125/90/75 960 290 200 4.5

MM201612 200/160/125 1170 345 270 5.5

Heat shrinkable caps to be ordered separately


GENERAL ORDER INFORMATION

62

HOW TO ORDER

By phone

Monday to Friday 8.30am to 5.00pm on

01386 446997. Please confirm all verbal orders

in writing and annotate “CONFIRMATION ORDER”.

By fax

Anytime on 01386 41923.

Please specify catalogue product number,

quantity, description, delivery and invoice

address/es, due date, order numbers

and delivery method. For example:

1. Normal three-day carrier.

2. Overnight next day delivery at additional

charge on application.

3. Overnight am delivery at additional charge

on application.

By email

Send to sales@wattsindustries.co.uk

TECHNICAL INFORMATION

For any further information on listed products, do

not hesitate to contact us. We can supply

technical data sheets where available or offer

specialised advice for your particular application.

CUSTOMER COLLECTION

Should customers prefer, we can prepare goods

for their own carrier collection. Customers are

requested to make all goods collections between

the hours of 9am 4pm, Monday to Friday inclusive.

We are closed for lunch from 1pm - 2pm.

NON-ACCOUNT CUSTOMERS

Please call on 01386 446997 for details on your

local distributor or opening an account.

RETURN GOODS

You should telephone our Sales Support

Department within 48 hours of delivery, and

please be prepared to advise the following:

1. Your order number.

2. Watts Industries UK despatch advice

note number.

3. Reason for return.

A Goods Returns Note will be forwarded to you

for return with the goods, please note that

consignments sent without a Watts Industries

Returns Note could be rejected. Goods will only

be credited if received in good saleable condition

including all packaging; also, we reserve the rights

to make a 25% handling charge. Authorised

returns must be sent freight prepaid.

CONDITIONS OF SUPPLY

Prices

Prices shown are in pounds sterling and exclude

VAT. Prices are subject to change without notice.

Terms

Terms and Conditions available upon request.

Property of goods

Until the payment has been received, all

goods remain the property of Watts Industries

UK Limited.

Guarantee

Watts Industries UK Limited will make good by

repair or replacement any defect or failure arising

from faulty material or workmanship for a period

of 12 months from despatch date. Defective

components must be returned to our works for

inspection and are subject to the Return

Procedure detailed prior.

Minimum order value

The minimum order value is £50.00. Orders for

less than this value will be charged at the

minimum order value.

Delivery charge

Delivery within the UK is at no charge on orders

of over £300.00 (excluding VAT).

The minimum delivery charge is £7.00 on orders

under £300.00 (excluding VAT).

Please call for delivery charge quotation on orders

under £300.00 that involve large or heavy items.

DISCOUNTS

Subject to agreement.

GENERAL

Catalogue is for guidance only and liable to

change. WRAS approvals indicated are accurate

at the time of print and should always be

confirmed with Watts Industries. E&OE.


Antipollution devices

Pressure reducing valves

Boiler components

Expansion vessels

Balancing valves

Microflex

7

17

25

39

47

53


Reorder number: CAT TC01

Watts Industries UK Ltd

Grosvenor Business Park Evesham Worcestershire WR11 1GA, United Kingdom

Phone +44 (0)1386 446997 – Fax +44 (0)1386 41923

E-mail sales@wattsindustries.co.uk – Site www.wattsindustries.com

More magazines by this user
Similar magazines