Under what circumstances should a pressure gauge be taken out of use?

2010-08-05View Original

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Under what circumstances should a pressure gauge be taken out of use?

Reply #22010-08-05

The pressure gauge should be discontinued from use in the following situations: 1. In the case of a pressure gauge with a stop pin, when there is no pressure, the pointer fails to return to the stop pin; in the case of a pressure gauge without a stop pin, the pointer’s reading at zero pressure exceeds the allowable error specified for that gauge. 2. The glass covering the pressure gauge is broken, or the scale on the dial is blurred. 3. The seal of the pressure gauge is damaged or its calibration validity period has expired. 4. Internal leakage in the pressure gauge or fluctuation of the pointer. 5. Other defects that affect the accurate indication of the pressure gauge.

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