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
16 de 32
7) Once the actuator SSV is already pressurized, release the by-pass valve and proceed with the disengagement
of the actuator of the SSV.
8) Reset the shutter GIPS-FC block valve, through the reset lever.
9) Open the vent valve at 20%, make sure the pressure will continue in pre-set value.
10) Using a combination wrench 7/8 "turn the adjustment screw clockwise to increase the output pressure to the
value of set-point desired.
11) If the pressure is oscillating perform a fine adjustment by opening or closing the discharge valve.
12) If the pressure is oscillating perform the fine adjustment by opening or closing the discharge valve.
13) Being set pressure according to the desired value, close the vent valve and check valve lock up.
14) Check for leakage in connectors and other throttle connections to the line.
15) Open SLOWLY AND GRADUALLY the output shut-off valve to put the line into operation.
16) If necessary to perform fine-tune the set pressure through the pilot regulating spring.
4.6.3 ADJUSTING THE LINE BOOKING
When the regulator is installed in a reserve line recommend that you performed the same procedure reported in
4.6.2, but the set-point pressure regulator should be adjusted for a 15% pressure - 20% less than the valve set-
point that is in operation.
Made it open SLOWLY AND GRADUALLY downstream so that the pressure outlet shut-off valve to the regulator
leg reserves equalize with the pressure that is already in operation, the regulator reserves remain closed.
To make the regulator that the reservation leg assume the setting, press the regulating spring towards slowly
clockwise until the set-point of this regulator reaches a value greater than the set-point of the line is in operation,
this the way regulatory reserve will open slowly and take the operation.
It is important that the two regulators remain with a difference of set-point at least 5% - 10%, so there is not a set-
point of overlap causing a competition between the two lines, ie a minute regulator opens in governor opens
another booking, promoting an inaccuracy in regulating.
TABLE SET POINTS RECOMMENDED
SET POINT
MAIN REGULATOR (PS)
SET POINT
REGULATOR
RESERVE
SET POINT PSV
SET POINT SSV
2,5 – 5,0 bar
PS x 1,150
PS x 1,400
PS x 1,500
5,0 – 12,0 bar
PS x 1,050
PS x 1,200
PS x 1,300
12,0 – 20,0 bar
PS x 1,025
PS x 1,200
PS x 1,300
20,0 – 80,0 bar
PS x 1,025
PS x 1,150
PS x 1,250
Note: The values in this table are recommendations based on best practices, but it is not prohibited the use of set-
points in different groups of informed upon review and approval of GASCAT.
