GMK Cast Steel Trunnion Mounted Ball Valve

Trunnion ball valves perform exceptionally well in high-pressure settings. As a result of the trunnion of the ball valve being anchored in this design, a good seal can be achieved in either the upstream or the downstream direction. Trunnion-mounted ball valve having a ball design. Trunnion Mounted Device that either seal off or otherwise obstructs the pipe in order to restrict the passage of whatever is already inside. The valves satisfy all of the API standards, including those pertaining to size, weight, and material. It is required to have an installed ball valve with a bleeder in order to either manage the pressure in the pipes or prevent pressure spikes. Sealing that is consistent in both directions. It is possible that the flow will be obstructed in both directions as a result of this.

  • Size range:DN50-DN1000
  • Pressure:ANSI #150, #300, #600, #900, #1500
  • Material:WCB, LCB, LCC, WC6, WC9, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CN7M, Alloy 20, B148, UB6, Hastelloy C etc
  • Connection:Flanges, RTJ flange, butt weld, hub end, groove
  • Operate:Hand lever, gearbox, pneumatic actuator

CE Certification

ISO Standards

Warranty Included



Some of the benefits provided by the GMK Cast Steel Trunnion Mounted Ball Valve are as follows:

  • A reduction in the torque required for operations

Ball valves that are mounted on a trunnion require less operating torque than ball valves that are not installed on a trunnion because the trunnion strengthens both the ball’s base and its cap.

  • Easy operation

In terms of user-friendliness, valves that require only a quarter turn to open or close are far superior to those that require the entire turn. It is popular among businesses and industries that require prompt modifications or shutdowns.

  • Reduced amount of wear and tear on the seats

As a result of being shielded from the abrasion caused by the seats, the ball that is trunnion-mounted enjoys a longer lifespan and better resistance to wear.

  • Pressures on both high and low levels are regulated.

Because it uses a separate spring mechanism to keep the opening closed, the ball valve can be used for pressure regulation at both high and low levels.



  • Two pieces or three-piece design
  • Trunnion mounted ball, blow-out proof stem
  • Full port or reduced bore
  • Fire-safe construction and anti-statics device
  • Self relieving seat
  • Double block and bleed function
  • The emergency sealant injection system
  • With vent valve and drain valve
  • ISO 5211 mounting pad optional


Size range DN50-DN1000
Pressure ANSI #150, #300, #600, #900, #1500
Material WCB, LCB, LCC, WC6, WC9, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CN7M, Alloy 20, B148, UB6, Hastelloy C etc
Connection Flanges, RTJ flange, butt weld, hub end, groove
Operate Hand lever, gearbox, pneumatic actuator
Supply ability 10000 piece/pieces per month
Port Wenzhou/shanghai
Payment terms L/C, D/A, D/P, T/T
Delivery time 7-10 Working day
  • Design and manufacture: API6D, BS5351, ASME B16.34
  • Pressure-temperature rating: ASME B16.34
  • Face to face(end to end): ANSI B16.10, API6D
  • End connection: 2″-24″ ASME B16.5; 26″ -42″ ASME B16.47; B.W end ASME B16.25
  • Test and inspection: API598, API6D
  • Fire-safe design: API607, API6FA
Can we order goods from you directly?
Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.
Can I get a discount?
This depends on the specific situation, you can call directly to consult.