Fire Hydrant Relief Valve, 500 GPM

Fire Hydrant Relief Valve, Inlet Size 2-1/2 In., Capacity 500 gpm @ 45 fps, Inlet Pressure 0 to 300 psi, Pilot Adjustment Range 20 to 175 psi, Body Material Cast Iron, Connection Type FNST Swivel, Seal Material Buna N Quad Seal, Stem Material Stainless Steel AISA303, Diaphragm Material Nylon Reinforced Buna N, Seat Material Brass, Control Circuit Fixed OrificeApplication Installed on fire hydrants to provide temporary relief protection to a water system