4" DN100 Water irrigation Solenoid Valve 2/2 way Normally Closed 12vDC/24vAC with PRV pressure regulating valve 0.8 to 6.5 bar Servo Assisted with anti-water hammer design and 3 stage Manual Over ride function for open, closed or fully automatic function. Valve pressure rated 0.65 bar to 10 Bar the PRV will reduce, regulate and maintain a preset fully adjustable 0.8 to 6.5 bar (11 to 95 psi) outlet water pressure. The PN22532APRV series two inch threaded 2/2 Normally Closed 24vAc with Delrin (POM) Plastic body for water valve is fitted with NBR seals and is ideally suited for irrigation systems, underground water systems, agricultural sprinkler systems, landscaping and green house water systems. These plastic water general purpose solenoid valves are available either 2 way normally closed with 24vAC coil or 9-40vDC bistable/ latching function. Max temperature +60C (140F).