HIGH PRESSURE POINT VALVE OPERATING INSTRUCTIONS

HIGH PRESSURE POINT VALVE OPERATING INSTRUCTIONS
HIGH PRESSURE
POINT VALVE
OPERATING
INSTRUCTIONS
IMPORTANT
Ensure that the regulator connected to the point valve has an
inlet pressure rating equal to, or higher than the maximum
fill pressure of the cylinders being used.
Do not use oils or greases on the point
valve or associated components.
Open all valves SLOWLY and FULLY to ensure the
pressure increases gradually.
Do not remove the plastic caps in cylinder valve
outlets until ready for use.
TO PUT THE POINT VALVE INTO OPERATION
1. Ensure that all outlet points in the pipeline system
are closed.
2. Check that the isolation valve is closed.
3. Ensure that the cylinder valve outlet is clean.
Momentarily open and then closed the cylinder valve
to blow out any foreign matter and ensure that each
cylinder is full. Close the cylinder valve lightly to
make slow opening, (after connection to the point
valve), easier.
4. Connect cylinder lead/coil to the cylinder valve.
Ensure that the end of the lead/coil is not
contaminated with any foreign matter, or that it is
not damaged.
5. Ensure that the regulator control knob is fully backed
off (ie. turned fully anti-clockwise).
6. Slowly and fully open the cylinder valve. Check the
cylinder connection for leaks using a weak solution of
soapy water
7. Slowly and fully open the isolation valve. Adjust the
regulator control knob until the outlet gauges reads
approximately 50-100 kPa. Wait until the pressure
into the pipeline stabilizes (ie. cannot hear gas
flowing through the regulator). Continue to adjust
the regulator knob desired pipeline pressure is
reached. (Note: attempting to rapidly pressurise a
pipeline system may damage the supply regulator).
TO CHANGE OVER SUPPLY CYLINDER
1. Close the cylinder valve and isolation valve.
2. Slowly and carefully remove the supply lead/coil from
the cylinder.
3. On the new cylinder, ensure that the new cylinder
valve outlet is clean. Momentarily open and then
closed the cylinder valve to blow out any foreign
matter and ensure that each cylinder is full. Close the
cylinder valve lightly to make slow opening, (after
connection to the manifold), easier.
4. Connect cylinder lead/coil to the cylinder valve.
Ensure that the end of the lead/coil is not
contaminated with any foreign matter, or that it is
not damaged.
5. Slowly and fully open the cylinder valve. Check the
cylinder connection for leaks using a weak solution of
soapy water
6. Slowly and fully open the isolation valve to allow the
system to operate. (Note, if during the changing of
the supply cylinder the pipeline has de-pressurised,
as indicated by the regulator gauges, the “put the
point valve into operation” should be followed to
avoid damaging the regulator).
It is recommended that the high pressure point valve systems only be shutdown for servicing or if the pipeline system is not going
to be used for a prolonged period of time. It is normal practice to leave the manifold in an operating condition overnight.
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