Description
2" Irrigation Solenoid Valve with PRV – PN22520APRV
The PN22520APRV is a 2" normally closed irrigation solenoid valve with integrated pressure reducing valve, combining automatic electrical water shut-off with adjustable downstream pressure control in one high-flow valve assembly.
Designed for large agricultural and commercial irrigation systems, the PN22520APRV features a 50mm flow orifice providing 668 L/min water flow at 1 Bar pressure drop. The integrated PRV provides an adjustable 0.8 to 6.5 Bar outlet pressure range, helping maintain stable downstream pressure while the solenoid controls the water supply.
A heavy-duty glass-reinforced UV-resistant PA66 body, anti-water hammer design, manual override and external bleed system make the valve particularly suitable for sprinkler systems, irrigation zones, landscaping and greenhouse water distribution.
Valve Function & Operation
Function: 2/2 way normally closed with pressure reducing valve
Operation: Servo / pressure assisted
The PN22520APRV combines automatic solenoid shut-off with adjustable downstream pressure regulation.
When electrically de-energised, the valve is closed. Energising the solenoid opens the valve, while the integrated PRV regulates the downstream water pressure to the selected setting.
Minimum pressure differential: 0.8 Bar
Inlet pressure: 0.8 to 10 Bar
Integrated Pressure Reducing Valve
Pressure adjustment range: 0.8 to 6.5 Bar
The integrated PRV allows the downstream pressure to be adjusted to suit the irrigation equipment being supplied.
Once adjusted, the pressure reducing mechanism works to maintain a stable outlet pressure despite variations in the upstream water supply.
This makes the PN22520APRV particularly useful where a high-pressure main supply feeds sprinklers, irrigation zones or other equipment requiring a lower controlled pressure.
Solenoid Valve + PRV in One
Combining the two functions within one assembly can eliminate the need to install a separate:
2" irrigation solenoid valve
plus a separate:
2" pressure reducing valve
This provides a compact solution for individually controlling and pressure-regulating large irrigation zones.
It can also be useful where different zones require different operating pressures from the same higher-pressure supply.
Port & Flow Performance
Port: 2" BSP
Optional: 2" NPT
Orifice: 50mm
Water flow: 668 L/min at 1 Bar pressure drop
That's approximately 40 m³/hour at 1 Bar pressure drop, giving the PN22520APRV substantial capacity for larger irrigation systems.
Anti-Water Hammer Design
The PN22520APRV incorporates an anti-water hammer design to help reduce hydraulic shock as the high water flow is switched.
This is especially valuable on a 2" valve with a 50mm orifice, where rapid changes in water velocity can otherwise generate significant pressure surges.
Controlled operation helps reduce stress on pipework, fittings, pumps, sprinkler equipment and downstream irrigation components.
Manual Override
An integrated manual override allows the valve to be operated locally without an electrical control signal.
This is useful during:
System commissioning
Irrigation maintenance
Controller testing
Electrical failure
System flushing
External Bleed & Easy Cleaning
The external bleed screw incorporates a removable metering pin, providing convenient access to the pilot system.
The metering pin can be removed for cleaning without complete valve disassembly, helping simplify maintenance where sediment or contamination is present in the irrigation water.
Construction & Materials
Body: Glass-reinforced PA66
Properties:
UV resistant
Corrosion resistant
Internals: Stainless steel
Seals: NBR
The reinforced engineering-plastic body provides a strong but lightweight alternative to a conventional 2" metal-bodied irrigation control valve.
Media & Temperature
Media: Water
Maximum media temperature: +60°C / 140°F
The PN22520APRV is specifically intended for irrigation and water pressure-control applications.
IP66 Solenoid Coil
Protection: IP66
Connection: 30cm flying leads
Duty: 100% continuous
12.5W DC / 12.5VA AC
Voltage Options
Available voltages:
12V DC
24V DC
24V AC
110V AC
230V AC 50/60Hz
This provides compatibility with low-voltage irrigation controllers as well as conventional mains-powered control systems.
Typical Applications
Agricultural irrigation
Pressure-regulated irrigation
Large sprinkler systems
Sports ground irrigation
Landscape irrigation
Greenhouse watering
Underground water systems
High-pressure water supplies
Irrigation zone pressure control
Automated water distribution
Why Choose the PN22520APRV?
The key advantage over the standard PN22520A is the integrated adjustable pressure reducing valve.
The standard PN22520A provides automatic ON/OFF water control, whereas the PN22520APRV additionally regulates the outlet pressure between 0.8 and 6.5 Bar.
For large irrigation zones supplied from a higher or varying inlet pressure, that's a useful functional difference and gives this page a strong separate SEO target around “2 inch irrigation solenoid valve with pressure regulator / PRV.”
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