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Valve Maintenance Procedures
4.7
The following are the standard procedures for safely removing, replacing and maintaining
the valves in the fluid end of the MP-16 pump.
Even while at rest, the fluid end of the system is under significant
pressure, which if accidentally or inappropriately released can cause
CAUTION
significant equipment damage and injury to nearby personnel.
pressure must be vented from the system before any maintenance on
the fluid end is performed (see 4.5.1: Venting Pressure in the Fluid End).
4.7.1 Valve Assembly
The standard valve assembly is as
shown. It consists of the valve itself, the
valve seat and a spring. The valve stem
inserts into a bushing which itself is
attached to the valve plug (not shown), and
guides the motion of the valve during
operations. Once the valve is positioned
inside the bore, the bushing is lowered into
place as the seal is installed.
weatherford.com
Pump and Fluid Systems
Chapter 5: Assembly/Disassembly
45
MP-16 2-Piece 5000 psi January 2013
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