Key Features

WRAS approved EPDM seals
WRAS Approval 2304324
2/2 way normally closed
Pressure-assisted diaphragm
Anti-water-hammer design
Approx. 3 sec open / close
Large 50mm orifice
Kv flow 580 L/min
0.5–10 Bar differential
15 Bar maximum working pressure
Forged brass body
Stainless steel internals
-5°C to +130°C media
IP65 coil & connector included
Class H 180°C coil insulation
100% continuous duty
AC & DC voltage options
Optional ATEX / IECEx coil
Optional low-power 24VDC connector
Suitable for priority demand systems
Suitable for sprinkler systems
Replacement seals & coils available
Free UK delivery

Datasheets

Description

2" WRAS Approved Water Solenoid Valve – Normally Closed

WRAS Approved Brass Water Solenoid Valve for Potable Water

The SHAKO PU225D-20 is a 2" WRAS approved brass solenoid valve designed for potable water, priority demand systems, sprinkler installations and high-flow water control applications.

This 2/2 way normally closed, pressure-assisted diaphragm valve features an anti-water-hammer design with approximately 3-second opening and closing time to help reduce hydraulic shock in large-bore pipework. The large 50mm orifice provides a high Kv flow factor of 580 L/min, making it particularly suitable for commercial and industrial water systems requiring reliable high-flow shut-off control.

Suitable for potable water installations, water treatment equipment, OEM machinery, sprinkler systems and priority demand applications where a minimum 0.5 Bar pressure differential is available.

Technical Specification

Function: 2/2 way normally closed

Fail Position: Closed when de-energised

Operation: Pressure-assisted diaphragm

Design: Anti-water-hammer

Port Size: 2" BSPP female

Optional Thread: NPT

Orifice Size: 50mm

Kv Flow Factor: 580 L/min

Minimum Differential Pressure: 0.5 Bar

Operating Differential: 0.5 to 10 Bar

Maximum Working Pressure: 15 Bar

Open / Close Time: Approx. 3 seconds

Body Material: Forged brass

Internal Components: Stainless steel

Seal Material: WRAS approved EPDM

Suitable Media: Water

Maximum Media Viscosity: 50 cSt

Media Temperature: -5°C to +130°C

Ambient Temperature: -20°C to +60°C

Installation: Coil upright

HS Code: 84818030

Coil & Electrical Specification

Coil: Nass Magnet system

Coil Power: 15 Watts DC

AC Power: 23VA inrush / 17VA holding

Insulation Class: Class H 180°C

Duty Rating: 100% continuous duty

Protection Rating: IP65 with connector

Electrical Connection: DIN 43650A

Connector: Included

Voltage Options

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

AC 50/60Hz: 12V, 24V, 48V, 110V, 220–240V or 380V

WRAS Approval

The EPDM seals and gaskets are WRAS approved for potable water applications.

WRAS Approval: 2304324

ATEX / IECEx Option

Optional Nass Magnet explosion-protected solenoid operator available for hazardous-area applications, subject to the suitability and certification of the complete valve assembly.

Ex mb IIC T4 Gb

Ex mb tb IIIC T130°C Db

Suitable for Zone 1 gas and Zone 21 dust, subject to complete assembly compliance

ATEX Category: 2G / 2D

Protection Rating: IP65

Maximum Media Temperature: +80°C with specified ATEX operator

ATEX Certificate: PTB 03 ATEX 2086 X

IECEx Certificate: IECEx PTB 05.0005X

ATEX Directive: 2014/34/EU

Typical Applications

Potable water systems
Priority demand valve systems
Fire sprinkler installations
Water treatment equipment
Commercial building water control
Industrial water management
OEM machinery
Process water systems
Large-bore water shut-off systems

Related Products & Categories

2" Brass Solenoid Valves

2" WRAS Approved Valves

DIN43650A Connectors

Replacement Solenoid Coils

Heat & Power Reducing Connectors

WRAS Approved Motor Ball Valves

View Technical Specification

Technical Specification

Brand: Shako Co Ltd

Model: PU225D20

Width: 112.00 mm

Height: 160.50 mm

Depth: 160.00 mm

Weight: 4.67 kg

Valve / Product Type: Solenoid Valve

Body Material: Brass

Port Size: 2 thread

Function: 2/2 Failsafe Closed

Operation: Pressure Assisted from 0.5 Bar

Seals: EPDM

Approvals:: ATEX Exm, IP65, WRAS

Media: Water

Options required: Anti Water Hammer

Orifice: 50mm

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

Voltage: 6vDC, 12vDC, 24vDC, 24vAC, 36vAC, 48vAC, 48vDC, 110vAC, 110vDC, 230VAC, 200vDC, 380vAC

Found in these Categories

2″ Water Solenoid Valve 0.5-15 Bar WRAS 2/2 Normally Closed

Name: 2″ Water Solenoid Valve 0.5-15 Bar WRAS 2/2 Normally Closed
Brand: Shako Co Ltd
SKU: PU22520A,NOPU22520A
Price: 331.93 GBP
Availability: InStock