Installation and Operation Manual
Argos - Pressure Regulating Valve
MI-23
Elaborado
Verificado / Aprovado
CSQ
Data
Revisão
Página
JJ
VBL
JM
13/02/19
07
25 de 32
5.0 TROUBLE SHOOTING
This section of the manual aims to evidence eventual troubles that may occur in the field to their causes.
The problems listed in this section may derive from different situations, but most of them are related to the gas
conditions (impurities), natural wear, and fault during the equipment operation.
It is important to keep in mind that the operation and maintenance of GASCAT equipment should only be
performed by highly skilled and trained personnel, preferably by teams trained by GASCAT’s instructors.
For training and qualification of operators and technicians, please, contact GASCAT through the e-mails below, to
check on their availability.
E-mail:
PROBLEM
CAUSE
CORRECTION
Non-good Working, Outlet Pressure
Variation
Low Flow (less than 5% of
maximum flow capacity).
Check operating conditions and
reestablish the flow conditions to
the equipment was sized.
Sensing line wrong installed
Fix the sensing line installation as
informed in this manual, or
contact GASCAT engineering.
Regulator response non
compatible with the system
Adjust the restrictor installed in
the inlet of pilot.
Direct Passge
Obturator or seat of pilot
damaged
Check the obturator and seat
integrity replace it or clean it if
necessary.
Diaphagm rupture of main valve
Check it and replace it.
Sensing line damaged
Check sensing line integrity and
replace it if necessary.
Outlet pressure dorp and/or
insuficiente flow
Filter elemento clogged
Clean it or replace it.
Lack of feed
Check if seat of pilot is blocked.
Main diaphragm passage
Replace it.
Gas in the pilot vent
Diaphragm rupture
Replace it.
