Cast Steel Trunnion Mounted Ball Valve

Cast Steel Trunnion Mounted Ball Valve

Trunnion Ball Valve has many advantages,Easy maintenance, easy installation, long service life.It is designed by integrated body, coat-style trunnion fixed support, flange or butt welded structure.

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Specification of this Cast Steel Trunnion Mounted Ball Valve
Trunnion Ball Valve has many advantages,Easy maintenance, easy installation, long service life.It is designed by integrated body, coat-style trunnion fixed support, flange or butt welded structure. The unique seat retractable technology,clubs can be replaced online , the valve seat and valve stem seals metal bellows and bellows spring, torque is reduced to minimum, coat-style valve for easy operationIts torque is small, reliable sealing, the special structure of the spherical ball valve seat and not the same as normal,can automatically adjust the seal position. As a leading Ball Valve Manufacturer in china. We supplies: floating ball valve,trunnion ball valve,metal seated ball valve,threaded end ball valve,butt welded ball valve,Forged steel ball valve etc, We can manufacture and supply ball valve according to your requirements. 
Parameters of this Cast Steel Trunnion Mounted Ball Valve

Trunnion mounted ball valves met all the requirements of API 6D as well as the other design codes;Minimum wall thickness comply with ASME B16.34. Valves are usually supplied with lever,gear box,actuator or bare shaft on customer request

ISO5211 platform design is adopted for the convenience of installing the actuator
Double block and bleed function
Anti-blow-out stem design
The pressure balancing hole is provided on the steel ball
The body is provided with a device for cleaning the valve cavity
Automatic pressure relief function
Fireproof and antistatic design
Sealant injection system for emergency seal
Multiple driving modes facilitate the realization of automatic control
Reliable stem seal and low operating torque. Metal hard seal seat can be made according to requirements 

Pictures of this Cast Steel Trunnion Mounted Ball Valve
 

  

Product advantage of this Cast Steel Trunnion Mounted Ball Valve
Some of the ball valves we offer have a trunnion mounted ball design, but most have a floating ball design; the most applicable design for your application depends upon your design criteria.
What makes a trunnion style ball valve different are the seats, which instead of being fixed are spring loaded, thus actively pushing against the ball to form a seal; therefore there's no need for the ball to pivot for sealing. The trunnion design is more complex, requiring both a top and bottom shaft to properly position the ball.
Trunnion style valves offer operational advantages for large diameter pipelines and high pressures, namely extended valve seat life. As might be expected, more stringent performance requirements often translate into more complex designs where the trunnion mounted ball design is advantageous. 

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