High temperature pneumatic ball valve design and production of key points

the use of pneumatic ball valve temperature usually depends on the heat resistance performance of pneumatic seat materials. Pneumatic ball valve pneumatic seat ptfe or nylon material is commonly used in manufacturing. Its use temperature & lt; Degrees. Therefore the temperature higher than using the often called high temperature pneumatic valve ball. High temperature pneumatic ball valve design key point is: ( ） Right to choose is suitable for high temperature use sealing materials; （ ） How to compensate the pneumatic valve seat wear in the use process, and coordination among the pneumatic valve, pneumatic valve seat and ball due to the assembly of deformation temperature and the temperature of different temperature difference. According to its aerodynamic seat materials, high temperature pneumatic ball valve can be divided into two categories, metal to metal and metal seal. Their common characteristic is the sphere and pneumatic valve body is made of high temperature resistant metal materials, the difference, the former pneumatic seat for metal or heat-resisting alloy manufacture, the latter pneumatic seat materials using non-metallic materials such as para polystyrene, flexible graphite and carbon fiber manufacturing.