Water Pump User Manual

Doc No: OMM50000903
Rev: B Page 18 of 65
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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
8.0 Estimated Life of Wearing Components
The information given here is an estimate of the average wear life of listed components
in clean liquid service. It is not a guarantee of life for any given application, but is
intended to facilitate maintenance schedules and stocking of spares. The maintenance
of the power end lubrication system will influence the life of the power end components.
The speed of operation and percent of maximum allowable load will influence the life of
both power end and fluid end parts. The temperature, abrasiveness, and lubricity of the
liquid affect the life of fluid end expendables.
POWER END COMPONENT ESTIMATED LIFE (Hours)
End Bearings (Roller or Ball) 20,000
Wrist Pin Bushings 10,000
Power End Cover Gasket 10,000
Connecting Rod Bearings 5,000
Oil Seal on Crankshaft or Pinion 5,000
Oil Seal on Piston (Pony) Rod 2,500
FLUID END COMPONENT ESTIMATED LIFE (Hours)
Fluid Cylinder 10,000
Pistons 5,000
Valve Seats 5,000
Valve Springs 5,000
Ceramic Liners 2,500
Valve Disc 2,500
Piston Cups 1,000