Pneumatic valve is installed to check the maintenance

Pneumatic valve body with circular hole is use for opening and closing, the body with the valve rod rotation, in order to realize the on-off movement. ball valve, is mainly used to connect or truncation pipeline medium, is generally not used to adjust flow, pressure, temperature scope is very big, but is generally used in medium and small diameter pipeline. After installation, we must also periodically check the pneumatic valve is working correctly, and verify its aging degree. Main projects include examination, pneumatic valve sealing surface wear. The stem and stem nut abrasion of trapezoidal thread. Packing is outdated failure, if there is any change in time. Valve repair after assembly, should carry on the sealing performance test. In order to ensure the normal operation of the pneumatic valve and, should be regularly to inject grease inside. When injecting grease, must pay attention to the quality of the oil, the oil not only maintain the valve quality is bad, it will cause damage to the valve; At the same time also pay attention to the grease injection, much less the more bad. And also to pay attention to the problem of pressure, if when the injection pressure is too low, can lead to seal failure, or pressure is too high, note oil mouth can easily plug.