Aquatrol Bronze Adjustable Relief Valve, MNPT Inlet Type, FNPT Outlet Type – 69B1S-600
Series 69 Relief Valves, Max. temp.: 450F,Field-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.