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Words From Our Engineer
A typed note headed Words From Our Engineer, signed by John, a Lifco engineer. With a Denison PV20 pressure compensated pump set at 3000 psi as the example, it works through the case flow of a new pump (about 1.5 gpm, about 3 hp to drive it) and of a worn pump (6 gpm needs 11.9 hp, 12 gpm needs 23.8 hp), which would overdraw a 15 hp electric motor; excessive leakage elsewhere in the system can cause the same issues.
Original file: words-from-engineer-720.jpg
Summary
A typed note headed Words From Our Engineer, signed by John, a Lifco engineer. With a Denison PV20 pressure compensated pump set at 3000 psi as the example, it works through the case flow of a new pump (about 1.5 gpm, about 3 hp to drive it) and of a worn pump (6 gpm needs 11.9 hp, 12 gpm needs 23.8 hp), which would overdraw a 15 hp electric motor; excessive leakage elsewhere in the system can cause the same issues.