1/2 WRAS Brass solenoid valve 10 Bar Latching 3v 6v 9v 12vDC

Description

1/2 inch WRAS brass latching solenoid valve – Model LPU225D-04

A WRAS approved, bi-stable (latching) 2/2 way normally closed brass solenoid valve designed for potable water applications where ultra-low power consumption is required. The valve remains in its last position without continuous power and uses short polarity-reversing pulses to open or close, making it ideal for battery-powered and remote installations.

Valve function and operation
Function: 2/2 way normally closed
Type: Latching / bi-stable
Operation: Pressure assisted
Minimum operating pressure: 0.5 bar differential

Latching control logic
Stay closed: negative to terminal 1 / positive to terminal 2
Stay open: positive to terminal 1 / negative to terminal 2
Pulse duration: 10 to 20 ms
Valve remains in last position with no power applied

Ports and flow
Port size: 1/2 inch BSP
Optional threads: NPT
Orifice size: 13.0 mm
Kv flow factor: 40 L/min based on water with 1 bar pressure drop

Pressure and performance
Operating pressure range: 0.5 to 10 bar differential
Maximum working pressure: 15 bar
Anti-water hammer design
Open / close time: approximately 0.5 seconds

Construction and materials
Body material: Brass
Internal components: Stainless steel
Seal material: EPDM
WRAS approval number: 2304324

Media compatibility
Potable water only

Temperature limits
Media temperature range: −5°C to +130°C

Coil and electrical
Coil type: 22003L latching coil
Power: 10 W (pulse only)
Voltage ranges:
3 to 9 V DC
9 to 15 V DC
Very low energy consumption due to latching operation

Protection
Ingress protection: IP65
Connector supplied

Typical applications
WRAS approved potable water systems
Battery powered control systems
Smart water shut-off valves
Water management and conservation systems
Remote installations requiring zero power hold

Technical Specification