Linde HiQ Redline Instrucciones página 12

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6.4.1 Mounting the regulating valve V 50
Tools: Fork spanner SW 22 (standard issue) Parts: Gasket G 1/4", 11.2 x 5.5 x 1.5 mm. Gasket G
1/4", 11.2 x 5.5 x 2.1 mm.
Remove the protection plug from the intended mount of the point of use regulator. The regulating valve
is usually mounted on the right (or on the bottom). To connect the regulating valve put a gasket in the
port on the regulator. Screw the regulating valve in by hand. The regulating valve should now be 90°
- 120° before the intended final position. If this is not the case, you will have to change the gasket. To
increase the angle, take a thicker gasket. To decrease the angle, take a thinner gasket. Once the position
of the regulating valve is right, tighten it to its final position with the fork spanner. Close the open port
of the regulator with a gasket and a G 1/4" protection plug, screw gas tight.
6.4.2 Operating the regulating valve V 50
To open the regulating valve and to increase the flow, the hand-wheel is turned to the left. A maximum
of 10 turns is possible. To decrease the flow and close the regulating valve, turn the hand-wheel to the
right until a slight resistance can be detected - this is when the minimum flow rate or the closed position
has been reached.
Warning! If you turn the valve closed any tighter, you risk destroying the valve!
6.5 connecting a consumer
Danger! Before starting assembly, de-pressurize the gas supply system. Depending on the type of gas,
remaining gases in the tubes must be removed. Danger of ignition, explosion or poisoning!
To connect a consumer there are the following possibilities: compression fittings, reducing compression
fittings and hose nipples.
6.5.1 Connection with compression fittings/reducing compression fitting
When tube fitting, you can use metal tubes or plastic hoses.
Caution! When using soft plastic hoses, the hose must have a supporting insert. This is the only way
to get secure mounting.
6.5.2 connection with a hose nipple
When using a hose nipple only soft hoses may be used.
Caution! The hose must be secured against coming off the hose nipple with a hose band clip.
7. Maintenance and breakdowns
7.1 Maintenance
The gas supply system should be examined regularly to make sure it is working correctly and to check
for leaks. When carrying out maintenance and service work, inform the operating personnel and the
users before starting work. For all service and maintenance work take the power off all associated
operating equipment and secure the main switch LINDEinst unexpectedly being turned back on. Check
fittings which have come undone for correct positioning. After completing maintenance work, make sure
that the safety installations are functional again.
Danger! For safety reasons, repairs and maintenance work only to be carried out by LINDE service
companies.
7.2 Malfunctions
By experience these regulators have a high level of reliability. Should any of the following breakdowns
occur despite this, exchange the pressure regulator and have the defective equipment repaired:
Gas release at the outlet of the pressure regulator when the hand-wheel is completely closed. Display of
increasing pressure on the outlet pressure gauge when the valve is closed or no gas is flowing. Gas release
at the regulator cover. Gas release at a gasket. Too high pressure drop with normal flow. Gas release at
the pressure relief valve. Gas release at the pressure gauge. Pointer of a pressure gauge does not return to
"0". Faulty pressure display.
8. return of equipment under pressure
Danger! Pressurized equipment can only be returned which are completely free of fluids and have been
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