Description
1¼" WRAS Water Solenoid Valve – Danfoss EV220BW
The Danfoss EV220BW 132U3200 is a 1¼" WRAS approved brass water solenoid valve designed for reliable control of potable water in larger commercial and industrial water systems.
This 2/2 way normally closed, pressure-assisted valve combines a large 32mm orifice, Kv 18 m³/h flow capacity and 0.3–16 Bar operating pressure with controlled closing to help reduce pressure surges and water hammer.
Previously supplied as Danfoss 032U7132, the 132U3200 is the corresponding model within the EV220BW potable-water range.
Valve Function & Operation
Function: 2/2 Way Normally Closed
Operation: Pressure Assisted
Fail Position: Closed
Energised Position: Open
Minimum Pressure Differential: 0.3 Bar
Maximum Operating Pressure: 16 Bar
The pressure-assisted diaphragm design requires a minimum 0.3 Bar differential pressure across the valve for reliable operation.
1¼" BSP Connection & High Flow
Port Size: 1¼" BSP
Orifice Size: 32mm
Kv Flow Factor: 18 m³/h
The large 32mm flow path provides substantial capacity for 1¼" pipework, making this model particularly suitable for higher-flow potable and process-water installations.
Anti-Water-Hammer Operation
Opening Time: 1.0 Second
Closing Time: 2.5 Seconds
The EV220BW incorporates controlled closing to reduce sudden changes in water velocity when the valve shuts.
The 2.5-second closing time is particularly beneficial in larger-bore pipework, helping minimise pressure shock, hydraulic surges and water hammer.
Brass & Stainless Construction
Body Material: Brass
Internal Components: Stainless Steel
Seal Material: EPDM
The combination of a robust brass valve body, stainless steel internal components and EPDM sealing provides dependable construction for commercial and industrial water-control systems.
WRAS Approved for Potable Water
The EV220BW uses WRAS approved EPDM sealing and is designed for potable-water applications.
Typical Media:
✓ Potable Water
✓ Mains Water
✓ Process Water
✓ Water Treatment Systems
✓ Compatible EPDM-Suitable Fluids
Maximum Fluid Viscosity: 50 cSt
Solenoid Coil
Coil Connection: DIN 43650A
Insulation Class: Class H 180°C
Duty Cycle: 100% Continuous
DC Coil Power: 18 Watts
AC Coil Power: 10 Watts
Protection: IP65
Electrical Connector: Included
The Class H continuous-duty coil is suitable for applications where the valve may remain energised for extended periods.
Voltage Options
✓ 12V DC
✓ 24V DC
✓ 24V AC
✓ 110V AC
✓ 230V AC
Voltage Tolerance: ±10%
Typical Applications
✓ Potable Water Distribution
✓ Commercial Plumbing Systems
✓ Industrial Water Systems
✓ Building Services
✓ Water Treatment Equipment
✓ Filtration Systems
✓ Large-Bore Water Control
✓ Cooling Water Systems
✓ Pump & Tank Control
✓ Water Hammer Sensitive Systems
Why Choose the Danfoss EV220BW?
The 1¼" Danfoss EV220BW provides a strong combination of WRAS approval, high flow capacity and 16 Bar pressure capability for larger potable-water installations.
Its 32mm orifice and Kv 18 m³/h provide considerably greater flow capacity than the smaller EV220BW models, while the controlled 2.5-second closing time helps protect larger pipework systems from hydraulic shock.
The 132U3200 supersedes the previous 032U7132 reference, providing a useful cross-reference when replacing valves in existing installations.
Available EV220BW Sizes
1/2" BSP – 15mm – Kv 4.0 m³/h
3/4" BSP – 20mm – Kv 8.0 m³/h
1" BSP – 25mm – Kv 11 m³/h
1¼" BSP – 32mm – Kv 18 m³/h
1½" BSP – 40mm – Kv 24 m³/h
2" BSP – 50mm – Kv 40 m³/h
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