JC Valves

FULLY WELDED VALVES

FULLY WELDED VALVES

The JC Fully Welded Ball Valve gives it maximum strength at minimum weight as well as maximum resistance both to pipeline pressures and stresses. The compact, spherical design also eliminates body flanges, thus reducing overall size and leak paths.

JC welded body ball valves are used mainly in Gas transmission and distribution pipeline (Mid-stream), typical for underground and buried installation.

VALVES FOR UNDERGROUND PIPELINES

Trunnion mounted ball valves

The ball is fixed and the seat rings are floating, free to move along the valve axis.
Side load generated by pressure acting on the ball is absorbed by bearings.
At low pressure the seat sealing acting is achieved by the thrust of the springs acting on the seat.
As the pressure increases the fluid pressure pushes the seat rings against the ball, making the sealing more reliable.

 

Independent ball and stem

The ball and stem are independent components to minimize the effect of the side thrust generated by the pressure acting on the ball to minimize the valve operation torque. 

 

Anti-static design

The electrical conductance continuity between all the metallic components is guaranteed and certified with the design of anti-static device spring and ball.

 

Fire Safe

Prototypes have been Fire tested and certified to BS 6755 Part 2 and API 607 3rd, 4th and 5th Edition.

 

NON-DESTRUCTIVE TESTING FOR GAS VALVES

Body (Shell under pressure)

Cast   
    X-raying of critical areas and BW ends (50 mm). % according to Table 1.
    Magnetic particles testing of internal and external surfaces at 100%.
Forged
    Ultrasonic test of critical areas and BW ends (50 mm).
    % according to Table 1.   
Welds
    Dye Penetrant inspection at 100%.

Ball

Cast
    Magnetic particles or dye penetrant liquids at 100%.

TTV-JC GROUP MIDDLE EAST

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APLICACIÓN MÓVIL

APLICACIÓN MÓVIL

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