Installation Manual, Maintenance and Operation
Pressure Regulating Valve – Model Horus
MI-18
Elaborate
Verified / Approved
CSQ
Date
Review
Page
J.Junior
Celso Nieto
JM
25/11/16 04
15 de 32
4.6.2 COMMISSIONING (SINGLE REGULATOR LINE)
Using as reference the assembly scheme presented in section 4.5.1 we will proceed with the description indicated
for HORUS model regulator commissioning a simple adjustment line, considering that the recommendations made
in section 4.6.1 of this manual have been properly observed.
The procedure in question considers the use of GIPS-FC GASCAT model valves as a safety device.
1) Fec
Close the vent valve.
As the line shut-off valves are closed we will use the vent valve to simulate a small flow and do so with the
regulator adjustment before aligning the line.
2) Check that the pilot of the regulating spring is properly relieved (discharged).
Relieving regulating spring we are ensuring that the valve will remain in the closed position when pressurized.
3) Make sure the unloading valve (needle valve) is open in 1/8 turn.
4) SLOWLY AND GRADUALLY open the shut-off valve, or when the station is provided with a by-pass valve
block uses the same to carry out pressurization.
5) Since there is no regulator downstream pressure shut-off valve GIPS-FC model will be in the closed position,
so keep the bypass valve located on the side of the SSV pressed to pressurize the space between it and the
regulator pressure.
6) While still holding the valve bypass the SSV, proceed with placing a light load on the pilot's regulating spring in
order to admit a small downstream pressure control valve, use a pressure gauge to monitor the increase of
this pressure and let the pressure adjusted to a value at least 20% above the set-point of low pressure SSV.
DISCHARGE VALVE
