Apollo® 16-504-01 Cast Bronze Pressure Relief Valve, 3/4 in x 1/2 in, Male Inlet x Female Inlet, 50 - 175 psi, 200 deg F

Calibrated pressure relief valve allows for inline pressure adjustments without the need for a pressure gauge. Provides static overpressure protection for liquid filled systems such as well pumps, tanks, fire protection systems.