After the common faults of Low price gas flow meter supplier china are handled, the local equipment faults shall be further analyzed and handled according to different fault types, so that the relevant faults can be handled properly.

1. The pressure pipe of Low price gas flow meter supplier china is blocked

In general, the blockage of pressure pipe is mainly caused by irregular blowdown of pressure pipe of differential pressure transmitter or particle invasion. When the impulse pipe is blocked, close the primary valve, and use steel wire or iron wire to unblock its blocking position. If it cannot be dredged, open the primary valve to flush with steam pressure. If the blockage of the impulse pipe is still not solved after steam flushing, relevant cutting and welding tools shall be used to replace the blocked part of the impulse pipe so that it can resume normal operation.

2. The pressure pipeline of Low price gas flow meter supplier china is frozen

The freezing of impulse piping only occurs in extremely cold weather or when the thermal insulation measures are not in place. The treatment measure is to timely input the relevant thermal insulation power supply to keep the heat tracing cable in the heating state. Check whether the thickness of the corresponding insulation layer meets the relevant design requirements, or if the local insulation layer is damaged. If the temperature is low due to several reasons, the corresponding thickness of the insulation middle layer shall be added in time.

The preventive measures for the icing of impulse piping are to timely check whether the thermal insulation measures of relevant equipment are in place and whether there is any damage during long-term operation when entering winter. If there is any damage, repair it in time.

3. Leakage at valve connection of Low price gas flow meter supplier china

The leakage at the joint of the valve is mostly the leakage at the joint of the primary valve and the pipe. When the joint of the valve leaks, water seepage or steam leakage can be seen at the welding site. If it is a leakage before the primary valve, it needs to be handled by a professional plugging company. If it is a leakage after the primary valve, the primary valve can be closed and re welded for plugging. In case of leakage of the impulse pipe behind the primary valve under special circumstances, only replace the leaking part.

4. Failure of differential pressure transmitter of Low price gas flow meter supplier china

In normal operation of differential pressure transmitter, the faults are mostly zero drift, diaphragm deformation or damage, electronic component failure, etc. For the fault zero drift and electronic component fault that can be directly judged on site, the deformation or damage of the diaphragm can only be judged after the instrument in the laboratory has been calibrated. The judgment method of zero drift is to open the balance valve and close the secondary valves at the positive and negative pressure sides. At this time, the output current of the differential pressure transmitter is 4mA, and the screen display is 0. If it is not 4mA, it indicates that the zero point has drifted, and the zero point of the differential pressure transmitter needs to be adjusted. The failure of electronic components is mainly judged by display and measurement.