The use of pneumatic valve and maintenance

） Pneumatic valve before installation, the valve must be installed in front of the check and switch operation test. Only in running action under the condition of normal, can install and use. （ ） The installation of the pneumatic valve as far as possible make the valve and piping flange concentric, and fixed support. Cannot make valve by other external force, so as to avoid the damage of valve sealing and deformation of the valve. Cause damage to valves and valve switch block and cannot be used. （ ） To ensure that the valve and pneumatic components supplied by the power source must be clean, without oil and water as much as possible. Cleanliness should be less than. Microns. （ ） Must be cleaned before access to the source, gas supply pipe, air interface and switch devices, such as in case due to line don't clean with dirt and sediment into pneumatic execution units and cause failure. （ ） Pneumatic actuators, solenoid valve, the locator, filters, pressure reducing valve, such as connection, can use a brass or nylon tube, in order to prevent dust and noise reduction, vent or silencing throttle valve should be installed muffler. （ ） After installation, for pneumatic valves should be tested, pressurize pneumatic actuators to rating, for pressure. ~。 Mpa, to switch test of pneumatic valve, observe the opening and closing of the valve. Should be flexible rotation, no jam phenomenon. On the switch card resistance phenomenon may get up steam, if any, repeatedly switch valve to the switch can be flexible. （ ） Pneumatic valve installation and debugging switch mode, use first hand gear ( Manual button on the solenoid valve) After debugging, action normal electricity debugging. （ ） Periodically maintenance of the pneumatic valve stem rotation, should be three months refueling ( The oil) At a time. Regularly for pneumatic execution units and cooperate with the use of air filters, water, sewage. Under the condition of normal check, six months maintenance once a year.