Your browser is out of date.

You are currently using Internet Explorer 7/8/9, which is not supported by our site. For the best experience, please use one of the latest browsers.

Trunnion Mounted Ball Valves


Forged trunnion 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. Bonney Forge is a trunnion mounted ball valves manufacturer 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. All designs are forged for improved mechanical properties, pressure retention, and quality.

Contact Us
Trunnion Ball Valves

Trunnion Ball Valves

Product standards & features

Applicable standard range

SIZE 1/2 NPS - 24 NPS
CLASS 150 - 2500

Applicable standards

Design ASME B16.34, ISO 17292, API 608, API 6D
Inspection & testing API 598
Marking MSS SP-25
Fugitive emission ISO 15848

Applicable end finishes

Face to face ASME B16.10
Socket weld ASME B16.11
Screwed ends (NPT) ASME B1.20.1
Flanged ends ASME B16.5
Butt welding ends ASME B16.25

Product features

1 Standard double block sealing performance.
2 Full die forged structure for all pressure containing parts.
3 Flanged valves are provided with flanged integral with closure member.
4 Standard primary gasket design is OR AED type, secondary emergency seal always provided for fire-safe purpose.
5 High quality packing for reliable tightness and low emission performance.
6 Use of low seat-ball friction materials and surface finish for reliable sealing and long service life.
7 Best-in-Class CV values.
8 Standard split & bolted design for body-closure connection.
9 Low operation torque design.
10 Static conduction spring is used as standard between the stem and the ball (Antic-Static Device).
11 Anti blow-out proof stem design.