Trunnion Ball Valve is designed for high-pressure and large-diameter applications, offering robust and reliable performance in various industries. Unlike floating ball valves, trunnion-mounted ball valves feature additional anchoring at the top and bottom of the ball, reducing the load on the valve seats and ensuring lower operating torque. This design makes trunnion ball valves ideal for handling high-pressure fluids, gases, and slurries, providing tight shut-off and long service life.
These valves are widely used in industries such as oil & gas, petrochemical, power generation, and water treatment, where reliability and durability are essential. Trunnion ball valves are available in a variety of materials and configurations to meet specific industrial requirements, and they are suitable for both on/off and throttling applications.
Key Features:
- Trunnion-Mounted Design: Provides additional support to the ball, reducing seat wear and lowering the required operating torque.
- Tight Shut-Off: Ensures a leak-proof seal even under high-pressure conditions, making it suitable for critical applications.
- High-Pressure Capability: Ideal for handling high-pressure fluids and gases in both upstream and downstream applications.
- Double Block and Bleed (DBB) Capability: Ensures complete isolation and safety during maintenance operations.
- Durable Construction: Built from high-quality materials to withstand corrosive environments, high pressures, and extreme temperatures.
Manufacturers:
- KITZ
- VELAN
- SVR
- FLOWORK
- CAMERON
Applications:
- Oil & Gas Pipelines
- Petrochemical Plants
- Power Generation
- Water Treatment Plants
- Chemical Processing
- Offshore Platforms
- LNG Terminals
- Refining Plants
Benefits:
- Lower Operating Torque: The trunnion-mounted ball reduces the load on the seats, requiring less torque to operate, which allows for smaller actuators and reduced operating costs.
- Extended Seat Life: The trunnion support reduces seat wear, ensuring a longer service life and minimizing maintenance requirements.
- Versatile Applications: Suitable for both on/off and throttling operations, and capable of handling a variety of fluids, gases, and slurries.
- Safety Features: Double block and bleed capability and emergency sealant injection ensure complete isolation and enhance operational safety.
Our Trunnion Ball Valves are engineered to provide reliable and leak-proof performance in high-pressure and large-diameter systems. With customizable materials and flexible designs, these valves are built to meet the specific needs of your critical applications.
For more information about our products and services, or to discuss your specific valve requirements, feel free to contact us.
| Technical Parameter | Standard Specifications & Capabilities |
|---|---|
| Valve Profile & Support mechanics | Trunnion Mounted Ball Valve (Heavy-duty anchoring at top and bottom of the ball to absorb structural pipeline pressure loads, ensuring low operating torque and minimized seat wear) |
| Nominal Size Range | DN50 to DN1500 (2 Inch to 60 Inch large-bore pipeline layouts) |
| Pressure Design Ratings | ASME Class 150 / Class 300 / Class 600 / Class 900 / Class 1500 / Class 2500 |
| Body Metallurgy Material | Forged Carbon Steel (A105), Cast Carbon Steel (A216 WCB), Stainless Steel (A351 CF8/CF8M), Alloy Steel (A182 F11/F22), Duplex & Super Duplex Stainless Steel |
| Ball & Stem Metallurgy | High-polish Stainless Steel, Inconel overlay/solid, or Monel cladding options tailored for highly sour/corrosive gas services |
| Seating Configuration | Soft Seating (PTFE, Devlon, or PEEK for absolute zero-leakage) or Metal-to-Metal hard-faced seating with Stellite/TCC coating for abrasive slurry loops |
| Operational Safety Features | Double Block and Bleed (DBB) design compliance, Anti-Static grounding devices, Fire-Safe certified design, and emergency sealant injection fittings for stems/seats |
| Pipeline Connections | Flanged RF / RTJ (ASME B16.5 / ASME B16.47), Butt Weld Ends (ASME B16.25) |
| Design Compliance Codes | API 6D, ASME B16.34, API 607 / ISO 10497 (Fire Safe Type Tested) |
| Pressure Testing Standards | API 6D / API 598 hydrostatic, high-pressure gas, and low-pressure air seating leakage verification tests |
| Quality Tracking Traceability | EN 10204 3.1 Certified Mill Test Reports (MTR), heat code tracking, NDT logs (UT/Radiography), and validated GA blueprints |
| Regional Asset Approvals | Sourced for critical high-pressure grids run by SWCC, NWC, Saudi Aramco, ADNOC, SABIC, KOC, KNPC, and BAPCO Energies |
