Regular lubrication
1.
Lubricate every 2–3 months if the gas is clean and a filter has been installed upstream of
the meter:
DN 50:
2 strokes
DN 80:
4 strokes
DN 100: 4 strokes
DN 150: 7 strokes.
2.
If the gas is dirty or contains moisture, the meter should be lubricated at least every
month.
1
Pump lever
2
Oil reservoir cover
3
Oil reservoir
4
One-way valve
Fig. 9 Sectional drawing of the oil pump
10
Decommissioning
1.
Ensure that there is sufficient ventilation in the installation room.
2.
The gas may only be released into the free air and in locations where there are no active
ignition sources.
3.
Reduce the operating pressure slowly (e.g. <350 mbar/s).
4.
The screws and nuts on the flanges may only be removed when the pipeline has been
completely depressurized.
5.
Carefully remove the meter from the pipeline.
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