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Trunnion mounted ball valve is applicable to long distance pipeline and general industry pipeline. Its strength, safetyand harsh environment resistance shall be taken into special consideration, therefore, it can be applied to corrosive and non-corrosive medium. When operation, the acting force produced by valve front end fluid on ball can fully pass to bearing without moving ball, and the ball will not move tovalve seat, in this way, valve seat will not bear greater pressure; therefore, trunnion mounted ball valve is characterized as low torque, small valve seat deformation,stable sealing performance,long-term service life. It is usedto high pressure and large bore application. With tight property,advanced spring pre-valve assembly can realize upstream seal. Every valve is equipped with two valves and sealed from per direction; therefore, there is no flow direction limitation for installation and it can be bi-directional application. This valve is usually installed horizontally.
The ball of the fixed ball valve is fixed by the lower valve stem, and does not move after being pressed. Therefore, in the design, the two sealing rings must have sufficient pre-tightening force to ensure the sealing of the valve seat and the ball, which is a double-sided forced seal. Thrust or plain bearings are usually mounted on the upper and lower valve stems that are integral with the ball.
Nominal Bore: 1-13/16"~4-1/16"
Working Pressure : 2000psi ~ 15000psi
Temperature Level: –75° F ~ +250° F
Body Material: AA、BB、CC、DD、EE、FF、HH
Specification Level: PSL1~PSL3G
Performance Level: PR1~PR2
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