Trunnion Mounted ball valves

casted Trunnion mounted ball valve

Trunnion Mounted Ball Valves are an excellent choice for on/off service in large and high pressure applications because the ball is anchored at the top and bottom of the design.

SIO manufactures Trunnion Mounted Ball Valves in an extensive range of designs, materials, sizes, pressure classes and end connections that are designed in accordance to ASME B16.34 and where applicable API 608, API 6D or BS EN ISO 17292.

The valves are fire-safe test approved and include design features to ensure electrical continuity between ball, stem and body. Cryogenic and high temperature metal seated configurations are also available.Forged are designed for improved mechanical properties, pressure retention, and quality.

Designed Feature

Trunnion Mounted Ball Valve-1


Double Block and Bleed, Side entry, Split body design, Fire Safe, Full / Reduced Port, Antistatic device, Blowout proof stem, Lever operated, Gear Operated or Actuated.

Design & Dimensions as per API 6D / ISO 14313.

Construction: One Piece Body End Entry
Two Pieces Body Side Entry
Three Pieces Body Side Entry
Seats: Soft Seated / Metal Seated
Bore: Full Bore / Reduced Bore
Ends: RF, RTJ, FF, BW, Hub, etc.

Manual (Lever, Gear)
Actuated (Electric, Pneumatic)

Size: 2”-24”
Rating: ANSI Class 150# and 300#,600#,900#,1500#,2500#


Carbon Steel, Stainless Steel, Low Temp Carbon Steel, Duplex, Super Duplex, Super Austenitic Stainless Steel and exotics like Inconel, Monel, Hastelloy etc.

Forged type

DIB Type