In the process industries—water, wastewater, oil and gas, food and beverage, chemical processing, mining, building services, pulp and paper—pumps are ubiquitous. The pumps used in those industries vary widely and each requires expert handling. These articles provide information on selecting the right pump for the application, as well as testing and troubleshooting, installation and maintenance on those pumps.

Inspired by recent events, I hope to clear up the continual confusion around net positive suction head (NPSH), specifically as it pertains to self-priming pumps on a lift application.

Last month, Jim Elsey discussed pump performance and reliability issues that occur when operating the pump away from the preferred operating region (POR).