cashco 1000HP Installation, Operation & Maintenance Manual - Page 12
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7. Not able to maintain setpoint.
Possible Causes
A. Diaphragm may be bent due to pressure
reversal.
8. Excess leakage:
Possible Causes
A. Faulty seating surfaces.
B. Outlet pressure setting too low for inlet
pressure.
12
Remedies
A.
Make sure to prevent system reversal.
Remedies
A1. Seat has been nicked by welding splatters.
A2. Composition seat is damaged.
A3. Composition seat driven into metal seat surface
due to overpressure.
B.
Refer to Technical Bulletin.
IOM-1000HP-Dif fer en tial