Trunnion Mounted Ball Valves

Basic Information

Type: Trunnion Mounted Ball Valves

Size: DN50-DN900(2”-36”)

Pressure Rating: PN10-PN420, CL150-CL2500

Body Material: WCB, A105, CF8, F304, CF8M, F316, CF3M, F316L, LCB, LF2, etc.

Trim Material: SS304, SS316, SS316L, or on customers’ request.

End Connection: Flange End, Butt Welding End, EN1092-1, DIN 2501, ASME B16.5

Design

Foyo trunnion mounted ball valves are designed and manufactured to provide maximum service life and reliability. All our trunnion mounted ball valves meet  requirements of API 608 and API 6D, BS5351, ASME B16.34. A complete range of body and trim materials are available.

Available Modifications for Foyo trunnion mounted ball valves:

Trim material

End connection

Packing and Gasket materials

Operation ( Manual, Pneumatic, Electric, etc.)

Pressure Equalizing

Anti-Static and Fire-safe Design

Product description

1 Operating

Extended Lever for easy operation, Gear box, Pneumatic actuator, and electric motors are all available for Foyo trunnion mounted ball valves.

2 Body and Bonnet

Split body and 3-piece body are both available for our trunnion mounted ball valves. Generally split body is for 12” and smaller.

3 Bore

By default trunnion mounted ball valves are all full bore, and reduced bore is also available.

4 End connections

RF and RTJ flanged body or Butt welding end are all available for our trunnion mounted ball valves.

5 Stem Packing

Standard stem packing is multiple V-PTFE, spring live loaded packing and graphite packing can be designed for high temperature applications.

6 Anti-Static Device

A metallic contact is designed between ball and stem to discharge statics.

7 DBB

Double block and bleed design. The body cavity of trunnion mounted ball valves is isolated when the ball is at either fully closed or fully open position. The medium entrapped in the cavity can be easily bled out to avoid overpressure.

8 Fire-Safe Design

Fire-Safe design as per API 607. Trunnion mounted ball valves ordered in compliance with API 607 will be provided with flexible graphite packing and gaskets.

Design Standards for Trunnion Mounted Ball Valves:

Steel Ball Valves, API608 and API 6D

Steel Ball Valves, ISO 14313

Fire Durable , API 607

Anti-Static, API 608

Steel Valves, ASME B16.34

Face to Face Dimension, ASME B16.10

End Flanges, ASME B16.5

Butt Welding ends, ASME B16.25

Inspection and testing, API 598, API 6D

Design Description for Trunnion Mounted Ball Valves:

Full bore or Reduced bore

Bolted bonnet, Split Body

Three piece body design for 12” and larger size

Trunnion mounted ball

Blow out proof stem

Fire durable structure

Anti-static device

Stopper device

ISO 5211 mounting pad

Available with worm gear, pneumatic and electric actuators.