TYPICAL CHART
STARTING UP THE REGULATOR WITHOUT VIS
Provide a light flow of gas downstream from the regulator. For example, using the bleed valve V2
Slowly open the gas shutoff valve V1 slightly, situated upstream from the regulator.
Check that the gas pressure is correct, using the inlet pressure gauge M1.
Check that the pressure is stable, using the outlet pressure gauge M2.
If the outlet pressure is not correct, adjust the regulator via the inspection hole (2)
Finish opening the shutoff valve V1 slowly, located at the filter inlet F1.
Slowly finish opening the shutoff valve V3, located downstream from the regulator.
Close the bleed valve V2.
START UP THE REGULATOR WITH MAXIMUM VIS (AND MINIMUM)
Provide a light flow of gas downstream from the regulator. For example, using the bleed valve 4
Slowly open the gas flow valve 1 slightly, situated upstream from the regulator.
Check that the gas pressure is correct, using the inlet pressure gauge M1.
Check that the pressure is stable, using the outlet pressure gauge M2.
If there is no outlet pressure, rearm the regulator:
o
Remove the protective cover (7)
o
Slowly press the button (12), opening the internal bypass
o
When the regulating pressure is reached at the outlet, the resistance on the button will reduce and it will be
possible to finish pressing the button and it should maintain this position unassisted.
Finish opening the shutoff valve V1 slowly, located at the filter inlet F1.
Slowly finish opening the shutoff valve V3, located downstream from the regulator.
Close the bleed valve V2.
The time required to press down the button opening the internal bypass will depend on the differential of pressure between the
inlet and outlet and the volume of the outlet tank.
ADJUSTMENTS
Regulators are supplied with springs suitable for the customer's requirements. These springs allow a range of specific
adjustments, described in the catalogue. Where other values are required, the regulating spring must be replaced Where the
regulator has VIS, the springs may also need to be changed.
REGULATION:
Remove the plastic cover (1)
Using a 27 mm socket wrench, tighten the mobile nut (2). Turning the nut clockwise increases the outlet pressure.
Turning it anticlockwise will reduce the outlet pressure.
Put back the plastic cover (1)
MINIMUM VIS (optional)
Remove the plastic cover (7)
Using a 13 mm socket wrench, tighten the mobile nut (9). Turning the nut clockwise increases the minimum operating
level. Turning it anticlockwise has the opposite effect.
Put back the plastic cover (7)
MAXIMUM VIS (optional)
Remove the plastic cover (7)
Using a 27 mm socket wrench, tighten the mobile nut (9). Turning the nut clockwise increases the maximum operating
level. Turning it anticlockwise has the opposite effect.
Put back the plastic cover (7)
To avoid dirt or damage when closing the regulator, a gas filter should be installed before the regulator, with a minimum filter
grade of 5 microns (F1).
V1
F1
R
V2
V3
M1
M2
