Common Faults And Treatment Methods Of Pneumatic Valves

After the research and analysis of the fault status of pneumatic valves, it is known that the possible faults include valve blockage, valve failure, valve leakage, impact, etc. Therefore, it is necessary to formulate countermeasures based on actual faults to achieve system stability and create higher benefits for the company's operations.
1. The pneumatic valve is stuck
If the valve stem moves slowly, it means that there may be more viscous substances in the valve body, and the blockage of the pneumatic valve mainly occurs in the early stage of system operation. When this happens, the valve or auxiliary pipeline should be opened and closed quickly to wash away the medium that blocks the valve. At the same time, the valve stem can be clamped with a pipe wrench, and the signal pressure can be applied to make the valve stem rotate with the reaction force. If the above problems still cannot be solved, the driving power can be increased to move up and down repeatedly. It should be noted that due to the highly professional nature of the above operations, it needs to be completed with the help of professionals when solving and handling this fault.
2. The valve does not work
For this kind of failure, first of all, it is necessary to judge whether the air source pressure is normal, and on this basis, find the air source failure. When the air source pressure in the valve is normal, it is necessary to judge whether the amplifier of the electric/pneumatic converter has output. When there is no output, there may be two situations: one is that the water in the air is compressed and placed at the ball valve of the power amplifier; the other is that the constant flow hole of the amplifier is blocked. In this regard, it is necessary to implement various methods such as cleaning the air source, removing debris, and dredging the constant hole. If the valve still does not move after the above treatment, it is necessary to disassemble the valve for a comprehensive inspection.