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Series 69 Relief Valves â?¢ Max. temp.: 450 Degrees FField-adjustable pressure is factory set to midrange for minimal effect on flow capacity rates. Adjustment requires no disassembly; simply remove hex cap. Closed bonnet, sealed hex cap, and lapped metal seating eliminate leakage. Stainless steel springs. MNPT x FNPT connections. For pressure relief, liquid relief, continuous bypass, and overprotection for pumping stations, tanks, hydraulics, fluid, and pipelines.

Adjustable Relief Valve, Body Material Bronze, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 1 in, Outlet Size 1 in, Factory Set Pressure 50 psi, Pressure Range 31 to 50 psi, Disc Material Bronze, Overall Height 7 1/2 in, Application Liquids, Seat Material Bronze, Spring Material 316 Stainless Steel, Temp. Range 0 Degrees to 450 Degrees F, Test Lever No