Low pressure regulator Type FL 90-4, Type FL 91-4
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part no. 05 004 52 b
Restarting the safety overpressure shut-off valve OPSO with visual indicator
If the safety overpressure shut-off valve OPSO has responded, which is shown in
RED
on the
visual indicator - take the following steps.
1. Close the gas withdrawal valve.
2. Vent the pressure regulator
loosen the screw connection on the outlet side .
3. Ventilate the inlet pressure
Loosen the connection on the inlet side .
4. Tighten all connections again.
5. After elimination of defects, open the gas cylinder valve or the shut-off fittings.
6. Unscrew the protective cap by hand.
7. Turn the protective cap around and pull out the spindle with the release device
until the spindle clicks into place and remains open.
8. Screw the protective cap on again by hand.
9. OPSO is ready to operate
and the display is
GREEN
.
10. Check for leaks.
Restarting the integrated safety overpressure shut-off valve (OPSO)
1. Close the gas withdrawal valve.
2. Ventilate the pressure regulator
loosen the connection on the outlet
side .
3. Ventilate the inlet pressure
loosen the connection on the inlet side
.
4. Tighten all connections again.
5. Depress the button with a screwdriver
(approx. 5 mm), until the button locks
into place.
6. The safety overpressure shut-off valve
(OPSO) is ready for operation.
7. Check for leaks.
MAINTENANCE
Upon proper ASSEMBLY and OPERATION, the product is maintenance-free.
