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Ball Valves

Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid adjustment and control. The hard-sealed V-shaped ball valve has a strong shear force between the V-shaped core and the metal seat of the hard alloy surfacing. It is especially suitable for fibers and tiny solid particles. And other media.

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Top Entry Floating Ball Valve

Compression spring is applied to the ball, the role of the compression spring is to apply pre-tightening force on the ball, so that the sealing surface of the valve seat is in close contact under any circumstances, and the sealing performance is good. The wedge Angle of the contact surface between the valve seat and the valve body is 10°,the seat is self-locking,In the direction of the line, when the valve seat is subjected to greater pressure, the valve seat will not produce any displacement. Therefore, the valve of this structure has both the characteristics of a gate valve and the advantages of a ball valve. During maintenance and inspection, it is found that the valve body and valve seat are prone to leakage. If the pre-tightening force of the spring is increased, the closing torque of the ball valve is bound to increase. In order not to increase the closing torque of the ball valve, a rubber O-ring is added to the back of the sealing surface of the valve seat to solve the problem of leakage on the back of the sealing surface of the valve seat.

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Top Entry Trunnion Mounted Ball Valve

Top entry trunnion mounted ball valves are widely used in petroleum and natural gas pipelines, as well as in oil extraction, oil refining, petrochemical, chemical, chemical fiber, metallurgy, electric power, nuclear power, food, and paper making equipment. The top entry trunnion mounted ball valve is easy and quick to disassemble on the pipeline, and the maintenance is convenient and fast. When the valve fails on the pipeline and needs to be repaired, it is not necessary to remove the valve from the pipeline. It is only necessary to remove the middle flange bolts and nuts, remove the bonnet and stem assembly from the valve body together, and then remove the ball and valve Block assembly. You can repair the ball and valve seat online. This maintenance saves time and minimizes losses in production.

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