Trunnion Mounted Ball Valve

The ball of the trunnion ball valve is fixed and does not move after being pressed. The CENTROFLOW Trunnion Mounted Ball Valve made in China has a floating valve seat. After being pressurized by the medium, the valve seat moves, so that the sealing ring is tightly pressed on the ball to ensure the sealing. Bearings are usually installed on the upper and lower shafts with the ball, and the operating torque is small, which is suitable for high-pressure and large-diameter valves.
 Trunnion Mounted Ball Valve
CENTROFLOW Trunnion Mounted Ball Valve main technical features: include 
  • Standard design can be in accordance with API 6D / ASME B16.34 / API 6A.
  • Antistatic design as per API 6D and ISO 17292.
  • Valve ends can be flanged (RF, FF, MF or FF, RTJ), according to ASME B16.5 (up to 24”) or ASME B16.47 (26” and above), Butt-Welding according to ASME B16.25.
  • Fire Safe according to BS6755 / API 6FA / API 607, since each sealing point is provided by a secondary fire-safe seal in graphite. Valve soft seats also are provided with secondary metal-to-metal seal in case of fire and anti blow-out stem.
Trunnion ball valves can be manual operated (lever or gearbox depending on valve size), but also equipped with an actuator (electric, pneumatic, hydraulic, gas-over-oil etc.).
Standard design is soft seated and gear operated, the following special designs are also available:
  • METAL-TO-METAL SEAT: for high temperatures (larger than 250°C) or dirt/slurry service, hard facing on seat and ball contact surfaces (Tungsten or Chromium Carbide).
  • SUBSEA DESIGN: for subsea applications, Top Entry Ball valves are provided with additional seals, blind nuts, subsea actuators etc. Valve design according to API 6D SS and ISO 14723.
  • STEM EXTENSION. For special applications the operator (lever/gear/actuator) can be lifted by an extension fixed to valve body, and a joint coupled to the stem.
The following optional features are also available:
  • Locking device.
  • Floating ball valves for drain and vent connections (if prescribed by Customer requirements)
  • Emergency stem seal injection;
  • Emergency seats sealant injection;
  • Weld overlay (316 or Inconel 625) on dynamic sealing areas or in all wetted parts.
  • Certified lifting devices;
  • Seal welded fittings.


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  • Top Entry Trunnion Mounted Ball Valve made by Centro Flow is of a single piece body valve design which delivers superior quality and functionality in the most demanding applications. It provides the highest level of safety and integrity, with the possibility of vertical installation for easier maintenance in offshore and other tight quarter applications. The structure of trunnion ball valve is opposit to a floating one with ball fix installed to the stem on one end, and the other end ball connected to trunnion. This Centro Flow Trunnion ball valve made strictly comform to the Global standard and customized specifications. And products fully controlled under management ISO 9001 and standard API. For more information please don’t hesitate to contact us imm.

  • Forged Steel Ball Valve made by Centro Flow is a very common type one among ball valves, the structure of trunnion ball valve is opposit to a floating one with ball fix installed to the stem on one end, and the other end ball connected to trunnion. This Centro Flow Trunnion ball valve made strictly comform to the Global standard and customized specifications. And products fully controlled under management ISO 9001 and standard API. For more information please don’t hesitate to contact us imm.

  • Trunnion Mounted Ball Valve made by Centro Flow is a very common type one among ball valves, the structure of trunnion ball valve is opposit to a floating one with ball fix installed to the stem on one end, and the other end ball connected to trunnion. This Centro Flow Trunnion ball valve made strictly comform to the Global standard and customized specifications. And products fully controlled under management ISO 9001 and standard API. For more information please don’t hesitate to contact us imm.

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Customized Trunnion Mounted Ball Valve made in China can be purchased at low price or attractive price. CENTRO FLOW is a professional Trunnion Mounted Ball Valve manufacturers and suppliers in China. If I want to wholesale, what price will you give me? If your wholesale quantity is very large, we can provide the discount price. The product made by China factory CENTRO FLOW can also be customized. You are welcomed to come to buy discount and high quality Trunnion Mounted Ball Valve. You can rest assured to buy discount product from us. Let us cooperate with each other to create a better future and mutual benefit.
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