In certain high-pressure configurations, a discharge relief device is used primarily to protect piping and equipment from overpressure.

• A. To increase pump discharge pressure
• B. To protect piping and equipment from overpressure in certain high-pressure configurations
• C. To reduce energy consumption
• D. To silence alarms

Answer: (B)

Discharge relief devices are there to prevent overpressure in the pumping system. In high-pressure configurations, the discharge path and system head can push pressures beyond what piping and equipment can safely withstand. The relief device opens at a predetermined pressure, venting excess fluid to keep system pressure within safe limits. This protects pumps, piping, valves, and other components from damage caused by overpressure and related surge effects during dynamic operation. It isn’t meant to boost discharge pressure, cut energy use, or silence alarms, so those options describe functions outside the device’s protective purpose. Hence, the statement that the relief device is used to protect piping and equipment from overpressure in certain high-pressure configurations is correct.