东洋阀门（上海）有限公司

Brief introduction of pneumatic three way ball valve:
The pneumatic ball valve three commonly used rubber, nylon and Teflon as the seat sealing material, so its temperature by the valve seat ring material limit. Ball valve closing function is by the metal sphere under the action of the media, in the plastic valve seat between each other pressing to complete the (floating ball valve). Under the action of certain contact pressure, the valve seat sealing ring is deformed in local area. This deformation can compensate for the manufacturing precision of the sphere and the surface roughness, to ensure the sealing performance of the ball valve.
Because the pneumatic three ball valve seat ring is usually made of plastic, so the choice of valve structure and performance, to consider the ball of fire and fire, especially in petroleum, chemical, metallurgy and other departments, the use of ball valve in the equipment and piping system of flammable and explosive medium, should pay attention to fire and fire.
Usually, the double adjustment, strict sealing, slurry wear necking channel, the rapid opening and closing movement (1/4 turn open and close), high pressure cut-off (pressure difference), low noise, there is the phenomenon of cavitation and gasification, a small amount of leakage to the atmosphere, the pipeline system operating torque is small, the fluid resistance is small. Recommended valve.
Pneumatic three way ball valve:
Pneumatic three way ball valve is also applicable to light structure, low pressure cut-off (pressure difference), corrosive medium pipeline system. In the low-temperature (cryogenic) equipment and piping system valve can also be used. In the metallurgical industry of oxygen pipeline system, the need to use the ball after a strict treatment. The head of the line in the pipeline and gas in the pipeline to be buried in the ground, need to use the full bore ball valve welded. In the requirements of the performance, the need to use a special structure with a V shaped opening of the valve. In the petroleum, petrochemical, chemical, electric power, urban construction, the operating temperature of 200 degrees or more of the pipeline system can be used for metal sealing metal.
Common faults and solutions of pneumatic three way ball valve:
Ball valve for a long time by the material erosion, friction, causing serious impact wear, can not meet the normal production, while causing the equipment to shorten the period of use. According to the current use of ball wear resistant materials, such as ceramic materials, polymer composite materials, widely used with micava technology system. Polymer material has superior adhesive properties, superior wear resistance, and the safety of the solution of the defects of the metal often wear, to ensure the normal production of enterprise equipment. But in the material of ceramic materials unique and special surface enhancer, in the dry grinding environment wear resistant and anti impact performance is better than any physical or even more than the worst of the steel tile, pneumatic three ball valve products and coal incompatible performance is to prevent the ideal material of coal product.