Saturday, November 7, 2009

Understanding Pump Performance

Published Monday, July 14, 2008

When fire departments think of pump performance, they usually focus on the flow and pressure ratings stamped on the pump plate. That’s only part of the story. To fully understand what a pump can do, you need to be aware of several other factors that determine performance. NFPA ratings. The rated pump performance is defined by NFPA standards. Structural and industrial apparatus are covered by NFPA 1901, which specifies three specific discharge flows and pressures that must be met: 100% of rated flow at 150 psi, 70% at 200 psi and 50% at 250 psi. Wildland ...

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