1.Stop-check valves are best suited for low to moderate
velocity applications. Correct sizing of stop-check valves is
important. Either too low a line velocity or too high a velocity
can damage valve internals and shorten valve life.
2.Service in systems involving frequent flow reversals and pulsation
should be avoided. Stop-check valves should be located as far
away from equipment such as pumps and compressors as possible.
Suspected problem systems should be reviewed with Pacific Valves
before selecting and purchasing stop-check valves.
Threaded seat rings in valves in services with high velocity
(turbulent) flow or thermal cycling should be lock welded to the
body to avoid loosening. Please specify.
LIMITATIONS:
1.Globe pattern stop-check valves can be used in horizontal piperuns
with the stem straight up.
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