Wafer-type pneumatic control valve is one of the pneumatic ball valves of domestic valve manufacturers. It was originally a new generation of ultra-short flanged ball valve designed and developed domestically by introducing Italian technology. The ball core has rectangular, V-shaped and O-shaped channels. This product is compact in structure, small in size, light in weight and easy to install. It can be widely used in petroleum, chemical, metallurgy, electric power, light industry and other industries. The camshaft solenoid valve can automatically perform oil, water, gas, pulp or fibrous fluids. Adjust or cut control.

Due to the influence of the operating environment of the clamp-type pneumatic control valve, when purchasing a pneumatic control valve, it is generally necessary to pay special attention to its sealing performance. However, during the use of any product, it is inevitable that the air tightness will be reduced due to factors such as aging. Therefore, how should we deal with the leakage of the natural gas solenoid valve pneumatic control valve?

In the case of valve body leakage, we will first analyze the cause of the leakage. Due to the effect of high temperature, high pressure and high permeability fluid medium, the stuffing box of the regulating valve will also leak more during use. The main cause of filler leakage is interface leakage, and leakage also occurs for textile fillers. The interface leakage between the valve stem and the filling piece is caused by the gradual attenuation of the contact pressure of the filling piece and the aging of the filling piece itself. That is, the contact gap between the filling piece and the valve stem will leak.

After analyzing the reasons, we should deal with the leakage. When choosing the packing, the corrosion-resistant solenoid valve is elastic graphite because it has good air tightness, low friction, small changes after long-term use, small wear and tear, easy maintenance, and gland After the bolts are re-tightened, the frictional force remains unchanged, the pressure resistance and heat resistance are good, the internal medium is not corroded, and the metal in contact with the valve stem and the filler does not undergo pitting or corrosion. So as to effectively protect the sealing of the valve stem stuffing box and ensure the long-term and reliable sealing of the stuffing box.