Flow Switch Connection Type: Threaded or U Bolt Working Pressure: 400psi ~ 450psi Operating Temperature: With water between 0ºC – 49ºC Dimensions: 1” – 2” Gear 2” – 8” U Bolt Compatible Pipe Types: – Steel Water Pipe – In Sch.10 – 40 Pipes Application Area: It is suitable to be used in all wet pipe systems with fluids such as water. Confirmations: – UL Listed – ULc Listed – FM Approved Category: Fire Fighting Installations Description Description Water flow switches are used for water or foamy fire extinguishing systems with closed sprinklers. Related products Dry Alarm Valve Test & Drain Valve Fire Squad Connection Valve Relief (Pressure Reduce) Valves