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What are the factors that affect the quality of air source for pneumatic regulating valves? kle-valve Wuxi Clariant Fluid Pneumatic Control Valve Pneumatic control valve uses compressed gas as the power source to drive the valve to realize switching volume and proportion adjustment. Therefore, the quality of the air source directly affects whether the pneumatic control valve can work normally. So what are the factors that affect the quality of the air source of the pneumatic control valve? (1) Whether an air filter is installed in front of the cylinder. According to regulations, a filter pressure reducing valve (filter + pressure reducing valve) should be installed in front of each pneumatic valve. The filter holes are from 5 microns to 40 microns (60 microns). Many factories do not install a pressure reducing valve in front of the cylinder, allowing pressure fluctuations. This situation is applicable to many occasions (it is okay not to install a pressure reducing valve in front of the cylinder). However, failure will occur if a filter is not installed in front of the cylinder. If a filter is not installed in front of the cylinder, impurities in the pipe will gradually enter the cylinder and wear out the sealing ring of the cylinder piston. In the cold winter in the north, water freezes in the cylinder and quickly damages the cylinder. (2) The air filter in front of the cylinder has not been cleaned or drained for a long time. The air filter should be inspected and cleaned after six months of use, and the drain valve should drain water and drain regularly. (3) The filter installed in front of the positioner is too thick: The orifice of the guide valve of the positioner of the pneumatic control valve is only a few microns. It is best to use a 3~5 micron filter to ensure the long-term operation of the positioner. (4) Large equipment and large amounts of usage do not use secondary filtration.: Because large installations are far away, the air from the air compressor will be transported over long distances and the stolen goods in the pipeline will be brought into the instrument air. It is best to use secondary filtration in an area with many instruments. What are the factors that affect the quality of air source for pneumatic regulating valves? The quality of the air source of the pneumatic control valve is the guarantee of the service life of the pneumatic control valve. Therefore, the stability and high quality of the air source must be ensured. The above analysis can be used as a reference for daily maintenance. kle-valve Wuxi Clariant Fluid Control Equipment Co., Ltd. Extended reading: Regulating valve selection: Valve body type selection for regulating valves