FMC Technologies W11 - 8 Estimated Life of Wearing Components

Doc No: OMM50002312
Rev: C Page 20 of 54
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8.0 Estimated Life of Wearing Components
The information given below is an estimation of the average wear life of specific
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 spare parts. 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 8,000
Oil Seal on Crankshaft or Pinion 5,000
Oil Seal on Piston (Pony) Rod 2,500
FLUID END COMPONENT ESTIMATED LIFE (Hours)
Fluid Cylinder 16,000
Pistons 10,000
Valve Assembly 8,000
Ceramic Liners 3,000
Piston Cups 1,500