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 Pendent Sprinkler Fire Squad Connection Valve Fire Cabinets Indicated Butterfly Valve