Page 379 - Med Plaza and Cancer Center
P. 379
Corporation
Corporation
OPERATING PRESSURE REGULATOR FAULTS
SYMPTOM CAUSE CORRECTIVE ACTION
Gas leakage around operating a. Loose bonnet. 1. Tighten bonnet.
pressure regulator bonnet
b. Diaphragm leak. 2. Replace regulator with substitue
unit and change diaphragm.
Shuttle valve shuttles before a. Idle operating pressure regulator 1. Reset regulator and change seal.
operating bank is empty creeping due to seal leakage.
Venting at operating relief valve a. Over pressure due to creeping or 1. Set operating regulator to value
faulty regulation by operating specified on page 8 (Operating
pressure regulator Regulators)
LINE PRESSURE REGULATOR FAULTS
SYMPTOM CAUSE CORRECTIVE ACTION
Pipeline not at desired a. Line regulator not set 1. Set line regulator to valve
pressure correctly. specified on page 8
(Line Regulators).
Required gas flow not a. Line regulator not set
available correctly.
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