Pressure Intake Relief Valve is accomplished by using the _____ and/or_____ built into the intake manifold piping.

Pressure Intake Relief Valve is accomplished by using the _____ and/or_____ built into the intake manifold piping.

• A. Piston-Intake-Relief-Valve / Pressure Relief valve
• B. Piston-Relief-Valve / Intake Relief Valve
• C. Intake-Relief Valve / Pressure Valve
• D. Piston-Intake Valve / Pressure Relief Valve

Answer: (A)

The idea behind the Pressure Intake Relief Valve is to protect the pump on the intake side by managing both suction and overpressure directly in the intake path. Built into the intake manifold piping are two devices: a piston-type intake relief valve and a pressure relief valve. The piston-type intake relief valve responds to negative pressure in the intake, opening to admit air as needed so the pump doesn’t cavitate or lose prime. The pressure relief valve opens when intake pressure gets too high, venting to prevent damaging overpressure in the manifold and piping. Using both devices together provides reliable relief across varying pumping demands. Other options either omit the piston intake relief function or pair valve names that don’t describe the actual intake relief arrangement, which is why they aren’t correct.

The idea behind the Pressure Intake Relief Valve is to protect the pump on the intake side by managing both suction and overpressure directly in the intake path. Built into the intake manifold piping are two devices: a piston-type intake relief valve and a pressure relief valve. The piston-type intake relief valve responds to negative pressure in the intake, opening to admit air as needed so the pump doesn’t cavitate or lose prime. The pressure relief valve opens when intake pressure gets too high, venting to prevent damaging overpressure in the manifold and piping. Using both devices together provides reliable relief across varying pumping demands. Other options either omit the piston intake relief function or pair valve names that don’t describe the actual intake relief arrangement, which is why they aren’t correct.