Description
3/4" WRAS Water Solenoid Valve – Danfoss EV220BW
The Danfoss EV220BW 132U2000 is a 3/4" WRAS approved brass water solenoid valve designed for reliable control of potable water in commercial, industrial and building-services applications.
This 2/2 way normally closed, pressure-assisted valve combines a large 20mm orifice, Kv 8.0 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 032U7120, the 132U2000 provides a modern replacement within the EV220BW potable-water valve 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 construction uses the pressure differential across the valve to provide reliable operation and requires a minimum 0.3 Bar differential pressure.
3/4" BSP Connection & High Flow
Port Size: 3/4" BSP
Orifice Size: 20mm
Kv Flow Factor: 8.0 m³/h
The 20mm flow path provides a substantial Kv 8.0 m³/h, making this model particularly suitable for higher-flow potable and process-water applications.
Anti-Water-Hammer Operation
Opening Time: 0.04 Seconds
Closing Time: 1.0 Second
The EV220BW combines rapid opening with a deliberately controlled closing characteristic.
The 1-second closing time helps reduce sudden pressure changes when the valve shuts, minimising hydraulic shock and water hammer in pipework.
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 a durable construction for water-control applications.
WRAS Approved for Potable Water
The EV220BW is configured specifically for potable-water applications, using WRAS-approved EPDM sealing.
Typical media include:
✓ Potable Water
✓ Mains Water
✓ Process Water
✓ Water Treatment Systems
✓ Compatible EPDM-Suitable Fluids
Solenoid Coil
Coil Connection: DIN 43650A
Insulation Class: Class H
Duty Cycle: 100% Continuous
DC Coil Power: 18 Watts
AC Coil Power: 10 Watts
Protection: IP65
Electrical Connector: Included
The continuous-duty Class H coil allows the valve to remain energised for extended periods during normal operation.
Voltage Options
✓ 12V DC
✓ 24V DC
✓ 24V AC
✓ 110V AC
✓ 230V AC
Voltage Tolerance: ±10%
Typical Applications
✓ Potable Water Distribution
✓ Commercial Plumbing Systems
✓ Building Services
✓ Water Treatment Equipment
✓ Water Filtration Systems
✓ Industrial Water Control
✓ Cooling Water Systems
✓ Process Water Systems
✓ Pump & Tank Control
✓ Water Hammer Sensitive Systems
Why Choose the Danfoss EV220BW?
The 3/4" EV220BW combines WRAS approval, high flow capacity and 16 Bar pressure capability with the proven Danfoss pressure-assisted valve design.
Its 20mm orifice and Kv 8.0 m³/h provide twice the nominal Kv of the 1/2" model, while the controlled 1.0-second closing time helps protect pipework from hydraulic shock.
For existing installations, the 132U2000 supersedes the previous 032U7120 model, making the old reference useful when identifying replacement valves.
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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