Trunnion Ball Valves – Reliable High-Pressure Solutions
Welcome to RUFSupply! We specialize in providing high-quality Trunnion Ball Valves designed to meet the demands of critical industrial applications. Whether you’re in the oil and gas, LNG, chemical, or power generation industry, our valves ensure unmatched reliability and performance under high-pressure and high-temperature conditions.
Explore our Trunnion Ball Valves and learn how they can help you enhance your operations with maximum efficiency and minimal downtime.
What is a Trunnion Ball Valve?
A Trunnion Ball Valve is a quarter-turn valve used to control the flow of media in pipelines. Unlike floating ball valves, the ball in a trunnion ball valve is supported by a fixed stem on one side and a trunnion (shaft-like support) on the opposite side. This design ensures the ball remains securely in place, even under extreme pressure, offering precise flow control and excellent sealing capabilities.
How Does It Work?
- Flow Control:
By rotating the ball 90 degrees, the bore aligns with the pipeline to enable flow. Rotating it back blocks the flow completely. - Sealing Mechanism:
- Low Pressure: Spring-loaded seats ensure proper sealing even at low pressures.
- High Pressure: Media pressure enhances the sealing effect by compressing the seats against the ball.
- Double Block and Bleed (DBB):
Trunnion Ball Valves can isolate flow from both upstream and downstream sides while venting trapped pressure, ensuring safety during maintenance.
To learn more about API 6D certification and its importance for industrial valves, visit this API 6D Standard Overview.
Key Features of RUFSupply Trunnion Ball Valves
Our Trunnion Ball Valves are engineered to deliver superior performance and safety in demanding industrial environments:
- Double Block and Bleed (DBB): Efficient isolation for maintenance without system interruption.
- Fire-Safe Design: Certified by API 607 and API 6FA for maximum safety in fire scenarios.
- Blowout-Proof Stem: Ensures operational safety by preventing stem ejection under pressure.
- Anti-Static Device: Eliminates static discharge, crucial for flammable environments.
- Emergency Sealant Injection: Allows temporary sealing during emergencies to reduce downtime.
- Bidirectional Sealing: Provides tight seals on both upstream and downstream sides.
- Spring-Loaded Seats: Guarantees effective sealing under both low-pressure and high-pressure conditions.
To explore other types of ball valves for specialized applications like cryogenic systems, check out our Cryogenic Ball Valve page.
Different Types of Trunnion Ball Valve
At RUFSupply, we professionally produce reliable, long lasting and highly performing trunnion ball valves with high tech workmanship that satisfies the standards of the global markets.
Send your Inquiry on RUFSupply Trunnion Ball Valve Now
- Video
- Why Choose RUFSupply
- Technical Data
Custom Manufacturing
Tailored solutions to match your exact specifications, from materials to pressure ratings.
Rigorous Testing
Every valve is tested for performance, durability, and safety before shipping.
Expert Technical Support
Our team of engineers is available to help you select the right valve for your application.
Competitive Pricing
Direct manufacturing ensures no intermediaries, saving you costs.
Global Standards Compliance
Our valves meet API, ASME, DIN, JIS, and GOST standards, ensuring reliability worldwide.
Request a Quote Today!
Need a reliable trunnion ball valve for your critical operations? RUFSupply is your trusted partner for durable and high-performance solutions.
Technical Data
Specifications
| Specification | Details |
|---|---|
| Size Range | 3/4″ to 60″ |
| Pressure Rating | ANSI Class 150 to 2500 |
| Body Material | Carbon Steel, Stainless Steel, Duplex Steel |
| Ball Material | Stainless Steel, Inconel, or Coated Options |
| Seat Material | PTFE, RPTFE, PEEK, or Metal-to-Metal |
| Temperature Range | -196°C to 500°C |
| End Connections | Flanged (RF, RTJ), Welded (BW, SW) |
| Standards Compliance | API 6D, ASME B16.34, ISO 5211, NACE MR0175 |
| Operation | Manual, Gear, Pneumatic, or Electric Actuator |
| Applications | Oil & Gas, Petrochemical, LNG, Power Plants |
For more information on the differences between trunnion and floating ball valves, visit our Floating Ball Valve page.
Applications of Trunnion Ball Valves
Our Trunnion Ball Valves are designed for high-pressure and high-temperature conditions, making them ideal for the following industries:
1. Oil and Gas Industry
Used to control the transportation of crude oil and natural gas, ensuring safety and efficiency in pipelines.
2. Chemical Processing
With superior corrosion resistance, our valves perform well in aggressive and corrosive media, ensuring environmental protection.
3. Power Generation
Trunnion Ball Valves are widely applied in steam regulation and cooling systems due to their ability to withstand high pressure and temperature.
4. LNG Facilities
Critical for shut-off and control in cryogenic environments, ensuring reliable performance under extremely low temperatures.
5. Water Treatment
Used in operations requiring minimal leakage and consistent flow rates, especially during the discharge of treated water.
To explore more valve solutions for industrial pipelines, check out our Double Block and Bleed Valve page.
Differences Between Trunnion and Floating Ball Valves
| Feature | Trunnion Ball Valve | Floating Ball Valve |
|---|---|---|
| Ball Support | Fixed by trunnions at the top and bottom. | Suspended and moves downstream with fluid. |
| Pressure Handling | High-pressure and large-diameter systems. | Limited to low- and medium-pressure uses. |
| Torque Requirements | Lower due to reduced stress on seats. | Higher torque is needed for operation. |
| Applications | Critical industries like oil and gas and LNG. | General-purpose, low-cost systems. |
Customer Success Stories
Our Trunnion Ball Valves have been successfully implemented in various projects worldwide, including:
- LNG Facility in Qatar: Ensured safe and efficient shut-off in cryogenic conditions.
- Oil refinery in Saudi Arabia: Delivered reliable high-pressure performance with minimal maintenance needs.
Request a Quote Today!
Looking for a reliable Trunnion Ball Valve for your industrial needs? RUFSupply is your trusted partner for durable, high-performance solutions.
Contact Us
Phone: +86-13736716763
Email: sale@rufsupply.com
Address: First Floor, No. 8686, Yangguang Avenue, Heyi Village, Yongjia County, Wenzhou City, Zhejiang Province, China
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Sizes of trunnion-mounted ball valves generally range from 1/2 in to as much as 48 in. and even larger depending on the manufacturer. This type of valves is intended for a myriad of industrial applications and proposes reliability in performance along a vast spectrum of variations of pipe sizes.
Trunnion mount ball valve has got its ball supported in a trunnion mount. This is where added stability reduces torque requirement and boosts performance, especially in high-pressure conditions, by limiting the movement of the ball to tolerable proportions during operation.
Trunnion mount ball valve has got its ball supported in a trunnion mount. This is where added stability reduces torque requirement and boosts performance, especially in high-pressure conditions, by limiting the movement of the ball to tolerable proportions during operation.
The support structure in a trunnion mount ball valve is one example of trunnions. It holds the ball fixed so that it has a controlled rotation. Trunnions can also be seen in heavy equipment like cranes or rotating equipment to provide stability.
The trunnions of a ball valve are fixed at the upper and lower ends of the ball valve. They hold the ball in place against movement, allowing for a more accurate control, for such instances in demand of stability like high concoction of pressures.