SC Pressure And Process Piping Practice Questions - South Carolina Pressure And Process Piping Contractor Examination Exam

A positive-displacement process pump is being piped. What overpressure protection is required on the discharge?

None; PD pumps cannot overpressure a blocked discharge A relief path (PSV or internal relief) sized for blocked-discharge, because the pump will keep adding pressure until something yields A check valve alone, with no relief A suction strainer in place of a relief valve

Correct Answer:

A relief path (PSV or internal relief) sized for blocked-discharge, because the pump will keep adding pressure until something yields

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