Apollo Bronze POP Safety Relief Valve, MNPT Inlet Type, FNPT Outlet Type - 511JHBKMAA0175 Nominal Size-18 " X 1.5" the unit features a flip

the unit features a flip top cover made of 22-gauge stainless steel

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but it also allows for a tighter grip than a standard satin finish to reduce the likelihood of accidents

Apollo Bronze POP Safety Relief Valve, MNPT Inlet Type, FNPT Outlet Type - 511JHBKMAA0175 Nominal Size-18 " X 1.5" the unit features a flipThis safety relief valve features a full nozzle design, and can be used in closed systems. It also features metal to metal seating and is ideal for pressure vessels and pressure piping systems. Valves are factory preset and sealed to prevent tampering. Not adjustable.