Trunnion Mounted Ball Valves: High-Pressure Reliability & Precision Control
Unlike a floating ball valve where the ball is supported only by the stem, a Trunnion Mounted Ball Valve features a ball that is mechanically anchored at the top and bottom (the "Trunnion"). This design ensures that the ball stays perfectly stationary while the seats move against it, resulting in a valve that can handle immense pressure without increasing operational torque.
The Mechanics of Excellence
In a FlowBiz Trunnion Valve, the hydraulic load from the pipeline is absorbed by the bearings rather than the valve seats.
- Stationary Ball: The ball is constrained by bearings and only permitted to rotate.
- Spring-Loaded Seats: The line pressure forces the upstream seat against the ball to create a seal. This ensures "Double Block and Bleed" (DBB) capabilities.
- Low Operating Torque: Because the ball is anchored, the torque remains consistently low even at full-rated working pressure. This allows for smaller, more cost-effective actuators.
Key Advantages of the FlowBiz Trunnion Design
- Minimized Seat Wear: The isolation of the stem/ball prevents side loading, significantly extending the service life of the downstream seats.
- Versatile Sealing: Our design uses a spring mechanism combined with line pressure to provide a perfect seal at both high and low pressures.
- Safety & Durability: The mechanical anchoring of the ball handles the thrust from the line pressure, preventing post-fatigue of the internal components.
- All-Scale Suitability: Available for all sizes and pressure classes, making them ideal for heavy-duty transmission lines.
Core Industrial Applications
FlowBiz Trunnion Ball Valves are engineered for the harshest environments:
- Oil & Gas: Hydrocarbon processing, refinery feedstock lines, and tank farms.
- Energy Sector: Natural gas processing plants, LNG terminals, and polymer production.
- Infrastructure: Feedwater systems, cooling water, and high-pressure steam service.
- Automated Skids: Turbines, compressors, generators, and separators.
Feature | Trunnion Mounted (FlowBiz) | Floating Ball Valve |
Ball Support | Top & Bottom Anchored | Supported by Stem only |
Torque | Consistently Low | Increases with Pressure |
Size Capability | Ideal for Large Bore (>4") | Limited to Small Bore |
Pressure Class | Up to Class 2500# | Typically up to Class 600# |
Your Global Partner in India and Beyond
As a leading Trunnion Ball Valve manufacturer in India, FlowBiz Exports delivers "Make in India" precision to the following regions:
- Gujarat Operations: Ahmedabad, Vapi, Surat, Bharuch, Ankleshwar, Gandhidham, Dahej, and Mundra.
- Maharashtra Presence: Mumbai, Pune, Nashik, Nagpur, Aurangabad, and Ambernath.
- Global Reach: Trusted by infrastructure projects in Dubai, Turkey, Africa, Thailand, and Vietnam.
Is your high-pressure system requiring oversized, expensive actuators?
Switch to the FlowBiz Trunnion Mounted Ball Valve to reduce your actuation costs and improve system longevity. Contact our technical team today for a consultation on your specific pressure, temperature, and material requirements (WCB, CF8M, Duplex).