Working principle and use of PTFE solenoid valve, troubleshooting method of PTFE solenoid valve

Main uses of PTFE solenoid valves: PTFE solenoid valves are used in highly corrosive fluid media such as strong acids, strong alkali, strong oxidants and organic solvents, as well as ultra-pure fluids. For example, automatic control of pipelines such as hydrochloric acid, concentrated sulfuric acid, various electroplating solutions, aromatic solvents, aliphatic solvents, and high-clean fluids. Solenoid valves are widely used as the best supporting products for automated fluid control of various corrosive media. Working principle of PTFE solenoid valve a) The coil is energized, the moving iron core is attracted, the valve stem assembly moves upward, the auxiliary valve port (middle hole of the valve core) is opened, and the fluid is relieved from the auxiliary valve port (middle hole of the valve core) , the valve core opens the main valve port due to the force of the fluid, the fluid flows out from the main valve port, and the solenoid valve opens normally. b) The coil is powered off, the moving iron core is reset by the force of the spring, the valve stem assembly moves downward, the auxiliary valve port (middle hole of the valve core) is closed, the valve core is forced by the fluid and the spring to close the main valve port, and the solenoid valve closure. Features of PTFE solenoid valve 1. Unique structural process a) Pilot piston or direct-acting structure, rapid opening and closing, unique soft sealing process sealing technology, no dripping. b) The seals are imported high-tech products with strong corrosion resistance and can withstand various strong acids (98% concentrated sulfuric acid), strong alkali, strong oxidants and organic solvents, and can be used for a long time without damage. c) The fluid medium is isolated from other metal parts. 2. Excellent chemical stability a) Strong acid (98% concentrated sulfuric acid, aqua regia), strong alkali, strong oxidant and organic solvent and other highly corrosive fluid media. b) Excellent atmospheric aging resistance, anti-oxidation, anti-surface dirt, anti-fading and anti-brittle properties. c) Non-polluting, non-toxic, odorless, high purity and chemically inert, and will not have any impact on the fluid medium. Suitable for ultrapure fluids, water treatment, medical water treatment, etc. 3. Wide temperature range: it can be used for a long time in the range of -50℃~+200℃. PTFE solenoid valve troubleshooting method Cause of trouble Troubleshooting method Turn on the power solenoid valve cannot open Power supply voltage is too low Coil burnt Medium pressure is too low Adjust voltage to within the range of use Replace the coil Increase pipeline medium pressure Turn off the power supply Valve is closed It does not stop or closes poorly. The medium pressure is too high. The diaphragm is damaged or there is foreign matter stuck on the diaphragm. The tower spring above the diaphragm is deflected. Reduce the pipeline medium pressure. Replace the new diaphragm. Remove the foreign matter. Reposition and install. The above is the working principle and installation of the PTFE solenoid valve. Purpose, PTFE solenoid valve troubleshooting methods are introduced. If you want to know more relevant information, please log in to Sunway Pneumatic www.diancifa.cc to view.