A pneumatic ball, floating ball valve

stainless steel ball is floating, pneumatic ball valve under the effect of medium pressure, the fitness ball produce certain displacement and compression at the outlet seal surface, guarantee the outlet seal.

floating stainless steel pneumatic ball Industrial Valves has simple structure, good sealing, but all spheres of work under medium load to export sealing ring, so want to consider to seal material can withstand the working load of sphere medium. In this structure, it is widely used in low pressure ball valve.

2, fixed ball pneumatic ball valve

stainless steel pneumatic ball valve ball is fixed, does not produce mobile after compression. Fixed ball valves have a floating ball valve seat, the medium pressure, mobile seat, make the seal compression on the ball, to ensure the seal. Usually mounted on the upper and lower shaft with ball bearing, the operating torque is small, suitable for high pressure and large diameter of the Industrial Valves.

in order to reduce the pneumatic ball valve operating torque and increase the reliability of the seal, appeared in recent years, oil seal ball valve, both betting special lubricant between the sealing surface, in order to form a layer of oil film, which increases the sealing, and reduce operating torque, suitable for high pressure large diameter ball valve.

3, elastic ball pneumatic ball valve

pneumatic ball valve of the sphere is elastic. Ball and seat sealing adopts metal materials, sealing pressure is very big, relying on the pressure of the medium itself already could not reach the requirements of sealing, must exert external forces. This valve is suitable for high temperature and high pressure medium.

elastic ball is on the lower end of the sphere wall open one elastic slot, and elasticity. When close the channel, sphere rolling out with stem wedge-shaped head pressure to seal with the valve seat. Wedge head before you turn the sphere are released, the sphere then restore the original prototype, appear very small gap between the sphere and valve seat, can reduce the sealing surface friction and operating torque.

pneumatic ball valve position according to the channel can be divided into straight-through, three general formula and right Angle type. Two kinds of ball valves for distribution after the medium and change the flow of medium.

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