Preventive maintenance of MEP Equipment

Adequate Margin between NPSHa and NPSHr

Overview

The Net Positive Suction Head (NPSH) is critical in pump operation to avoid cavitation. This page discusses the importance of maintaining an adequate margin between NPSHa (Available) and NPSHr (Required).

Concept

NPSHa is the amount of suction head available at the pump suction nozzle, while NPSHr is the head required at the pump suction to prevent cavitation. Adequate margin ensures smooth pump operation and longevity.

Video

Contact

For more information, please contact us at info@npsheffect.com.

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