Ball Valve Structure
Good sealing, but the ball to bear the load of the working medium is all transmitted to the outlet seal, so consider whether the seal material can withstand the working load of the ball medium, the ball may be deflected when subjected to higher pressure shock. This structure, generally used for low and medium pressure ball valves.
The ball valve's ball is fixed and does not move when pressurized. Fixed ball ball valve are with floating seat, after being pressed by medium pressure, the seat produces movement, so that the seal is pressed tightly on the ball to ensure sealing. Usually equipped with bearings on the upper and lower shafts with the ball, the operating torque is small and suitable for high pressure and large diameter valves.
In order to reduce the operating torque of the ball valve and increase the reliability of the seal, and the emergence of oil seal ball valve, both in the sealing surface between the pressure injection of special lubricant to form a layer of oil film, that is, to enhance the sealing, but also to reduce the operating torque, more suitable for high pressure and large diameter ball valve.
If you have any enquiry about quotation or need details about high-pressure ball valves please feel free to email us at sales@dljierui.com. Thanks for your interest in our products.
