It is far from meeting the requirements of many media in the market. For example, when the operating medium is rosin, the operating temperature of the thermal insulation pneumatic ball valve is required to be 300 ℃, which is conducive to the rosin medium to obtain more ideal liquidity. The traditional O-ring as a sealing part cannot meet its requirements.
2 Improvement measures According to the existing problems of thermal insulation pneumatic ball valve, determine to improve the sealing material and structure of thermal insulation pneumatic ball valve.

The manual booster structure of the pneumatic pneumatic ball valve introduces that there are many valves in the gas pipeline that need to be closed and opened quickly, so the valves driven by the gas-liquid system meters can also be controlled remotely. Because the medium pressure in the transmission gas pipeline fluctuates greatly, when the pressure is relatively high, It is difficult to open and close the valve when the friction torque of the ball rotation is very large. A large driving force must be required, which requires an emergency mechanism to input energy to the driving system to increase the pressure of the working medium.