11/4 WRAS solenoid valve 2/2 normally open, Shako

Key Features

WRAS approved for potable water applications
2/2 way normally open operation
Failsafe open – energise to close
High-flow 38mm orifice design
Kv 367 L/min flow capacity
Suitable for priority demand and sprinkler systems
Pressure assisted diaphragm operation
Anti-water-hammer closing design
Brass body with stainless steel internals
EPDM WRAS approved seals
IP65 DIN43650A coil included
100% continuous duty rated
AC and DC voltage options available
Optional ATEX hazardous area coil
Optional PWM power-saving connector
Free UK delivery available

Datasheets

11/4 Water Solenoid Valve 0.5-15 Bar WRAS 2/2 Normally Open

Name: 11/4 Water Solenoid Valve 0.5-15 Bar WRAS 2/2 Normally Open
Brand: Shako Co Ltd
SKU: PU22512A
Price: 242.54 GBP
Availability: InStock

£242.54 incl. VAT £202.12 ex. VAT

-35% Was ~~£373.14~~ incl. VAT

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Brand: Shako Co Ltd

Model: PU225DN12

Stock: 27 in stock

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Description

11/4" High Flow WRAS Approved Normally Open Water Solenoid Valve

The SHAKO PU225DN-12 is a WRAS approved 1¼" brass normally open solenoid valve designed for potable water systems, priority demand installations and fire sprinkler applications. The valve remains open without power and closes when energised, making it ideal for fail-safe water control systems where uninterrupted water flow is required during power loss.

Featuring a large 38mm orifice and high Kv flow rate of 367 L/min, this pilot-operated diaphragm valve is particularly suited to commercial and industrial water systems requiring high flow capacity and reliable operation.

Key Features

✓ WRAS approved for potable water applications

✓ 2/2 way normally open operation

✓ Failsafe open – energise to close

✓ High-flow 38mm orifice design

✓ Kv 367 L/min flow capacity

✓ Suitable for priority demand and sprinkler systems

✓ Pressure assisted diaphragm operation

✓ Anti-water-hammer closing design

✓ Brass body with stainless steel internals

✓ EPDM WRAS approved seals

✓ IP65 DIN43650A coil included

✓ 100% continuous duty rated

✓ AC and DC voltage options available

✓ Optional ATEX hazardous area coil

✓ Optional PWM power-saving connector

✓ Free UK delivery available

Typical Applications

Potable water distribution systems

Priority demand water systems

Fire sprinkler installations

Water treatment equipment

Industrial process water systems

Commercial building services

Irrigation systems

High-flow water control applications

Technical Specification

Function: 2/2 way normally open

Operation: Pilot operated diaphragm

Fail Position: Open

Pressure Range: 0.5 to 15 Bar

Minimum Operating Differential: 0.5 Bar

Orifice: 38.0mm

Flow Factor (Kv): 367 L/min

Port Size: 1¼" BSPP female

Optional Connection: NPT

Body Material: Brass

Internal Materials: Stainless steel

Seal Material: EPDM (WRAS Approved)

Media: Potable water and compatible liquids

Media Temperature: -5°C to +130°C

Design Feature: Anti-water-hammer closing construction

Coil Specification

Power Consumption: 15 Watts

Coil Manufacturer: Nass Magnet

Protection Class: IP65

Connector: DIN 43650 Form A

Duty Rating: 100% ED Continuous Duty

Available Voltages

DC: 12v, 24v, 48v, 110v or 220v

AC 50/60Hz: 12v, 24v, 36v, 48v, 110v, 230v or 380v

Optional ATEX Coil

An optional hazardous area ATEX coil is available for use in potentially explosive atmospheres.

Ex mb IIC T4

T4 Temperature Class

Suitable for Zone 21 and Zone 22 installations

Maximum media temperature +80°C

WRAS Approval

The EPDM sealing materials are approved for use with potable drinking water systems.

WRAS Approval Certificate: 2304324

Why Choose a Normally Open Solenoid Valve?

Normally open solenoid valves are commonly used where continuous water flow is required during a power failure. Typical applications include priority demand systems, emergency water supplies and fire sprinkler installations where the valve automatically returns to the open position if electrical power is lost.

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View Technical Specification

Technical Specification

Brand: Shako Co Ltd

Model: PU225DN12

Width: 96.00 mm

Height: 145.50 mm

Depth: 131.00 mm

Weight: 2.82 kg

Valve / Product Type: Solenoid Valve

Body Material: Brass

Voltage: 110vAC, 110vDC, 12vDC, 200vDC, 230VAC, 24vAC, 24vDC, 36vAC, 380vAC, 48vAC, 48vDC

Port Size: 11/4 thread

Function: 2/2 Failsafe Open

Operation: Pressure Assisted

Seals: EPDM

Approvals:: ATEX Exm, IP65, WRAS

Media: Water

Options required: Anti Water Hammer

Orifice: 38mm

Pressure: 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar, 12 Bar, 13 Bar, 14 Bar, 15 Bar

Key Features

Datasheets

11/4 Water Solenoid Valve 0.5-15 Bar WRAS 2/2 Normally Open

Description

11/4" High Flow WRAS Approved Normally Open Water Solenoid Valve

Key Features

Typical Applications

Technical Specification

Coil Specification

Available Voltages

Optional ATEX Coil

WRAS Approval

Why Choose a Normally Open Solenoid Valve?

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Technical Specification

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