Doc No: OMM50001243
Rev: C Page 42 of 68
This document and all the information contained herei
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and may not be reproduced, disclosed, or made public in
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10.3.2 Replacing Disc Type Valves
10.3.2.1 Introduction
The disc type valve used in M06 series FMC pump models is shown in Figure 14. The
standard construction of stainless steel seat, disc, and stop are a cost effective design
with excellent performance and ample life. These valve assemblies come pre-
assembled from the factory and should not need to be disassembled.
Figure 14: Typical Disc Valve Assembly
When a worn or malfunctioning valve is detected, it must be replaced. With disc valves,
the most difficult task associated with replacing a valve is the removal of the seat from
the fluid cylinder. The seats are held into the fluid cylinder with a matching locking
taper. Removal is particularly difficult if the discharge pressure of the pump was over
3,000 psi or corrosive fluid was pumped.
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