Which term describes the net pressure (differential pressure) at rated flow and rated speed as marked on the nameplate?

Which term describes the net pressure (differential pressure) at rated flow and rated speed as marked on the nameplate?

• A. Net Pressure
• B. Rated Pressure
• C. Suction Pressure
• D. Discharge Pressure

Answer: (D)

Discharge pressure is the pressure the pump develops on the discharge side when delivering its rated flow at the rated speed. This value represents the net pressure the pump adds to the system (the differential between discharge and suction), and the nameplate specifies this output as the discharge pressure. Suction pressure refers to the intake side, not the pump’s output, and while the differential is conceptually the net pressure, the standard labeling on the nameplate is discharge pressure for the pump’s rated output.

Discharge pressure is the pressure the pump develops on the discharge side when delivering its rated flow at the rated speed. This value represents the net pressure the pump adds to the system (the differential between discharge and suction), and the nameplate specifies this output as the discharge pressure. Suction pressure refers to the intake side, not the pump’s output, and while the differential is conceptually the net pressure, the standard labeling on the nameplate is discharge pressure for the pump’s rated output.