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Carbon Steel 2PCS Full Bore Trunnion Mounted Ball Valve - 6inch 6000LB | China Suppliers & Factory Quality
Products Specification
| Type | Trunnion Mounted Ball Valve |
| Size | 6” |
| Pressure | 600LB |
| Connection | Flange End |
| Operation | Gear Box |
| Body Material | WCB |
| Design Standard | API6D |
| FTF Dimension Standard | ASME B16.10 |
| Flange Dimension Standard | ASME B16.5 |
| Test Standard | API598 |
| Application | W.O.G |
Features
Trunnion Design
The ball is fixed in place by a trunnion (a shaft or pin) at the top and bottom, which reduces the load on the valve seats and ensures stable operation.
Low Operating Torque
The trunnion design reduces the friction between the ball and the seats, requiring less force to operate the valve. This is especially beneficial in high-pressure applications.
Double Block and Bleed (DBB) Capability
Trunnion mounted ball valves can isolate both upstream and downstream sides of the valve simultaneously, allowing for the bleeding of pressure or fluid from the cavity between the seats.
Sealing Performance
The design provides better sealing performance, as the seats are spring-loaded or activated by the line pressure to maintain a tight seal.
Safety and Reliability
These valves are known for their high reliability and are often used in critical applications like oil and gas, petrochemical, and power industries.
Size and Pressure Handling
Suitable for larger diameters and high-pressure conditions, trunnion mounted ball valves can handle a wide range of pressures and temperatures.
Bi-Directional Operation
These valves can control the flow of fluid in both directions, providing flexibility in various piping configurations.
Extended Service Life
The reduced wear and tear on the seats due to the trunnion support leads to a longer service life and lower maintenance costs.
Emergency Sealant Injection System
Many trunnion mounted ball valves have an emergency sealant injection system that allows for sealing in case of seat damage.
Fire-Safe Design
Many trunnion mounted ball valves are designed to be fire-safe, ensuring operation even under fire conditions to prevent leakage and maintain control.
These features make trunnion mounted ball valves a preferred choice for demanding applications where durability, reliability, and performance are critical.
Application
Trunnion mounted ball valves are versatile and reliable, making them ideal for a variety of applications requiring high pressures, large diameters and reliable sealing. Here are some key applications:
1. Oil and Gas Industry
Upstream: Used in drilling operations, production manifolds and wellhead equipment.
Midstream: Ideal for piping systems, storage facilities and compressor stations.
Downstream: Commonly used in refineries and petrochemical plants to control process flows.
Midstream: Ideal for piping systems, storage facilities and compressor stations.
Downstream: Commonly used in refineries and petrochemical plants to control process flows.
2. Petrochemical Industry
Critical to the transport and processing of chemicals, a strong and reliable seal is essential.
3. Power Generation
Used in power plants, including nuclear, thermal and hydropower plants, to control steam, water and other fluids in high-pressure systems.
4. Water and Wastewater Treatment
Used in large water treatment plants and distribution systems due to its durability and ability to handle high pressures.
5. Marine and Offshore Applications
Suitable for subsea applications and offshore platforms where reliability under extreme conditions is critical.
6. Liquefied Natural Gas and Cryogenics
Ideal for liquefied natural gas (LNG) plants and cryogenic processes due to its performance at low temperatures.
7. Mining and Mineral Processing
Used in slurry handling, ore processing and other high wear environments.
8. Pulp and Paper Industry
Used in the processing and transportation of pulp and paper products, often requiring large volumes and high pressures.
9. HVAC System
Heating, ventilation and air conditioning systems for large buildings and industrial complexes.
10. Industrial Manufacturing
Used in a variety of manufacturing processes requiring reliable fluid control.
11. Chemical Processing
Critical for handling corrosive and hazardous chemicals requiring high integrity and reliability.
12. Fire Safety System
Due to its fireproof design, it is often integrated into fire extinguishing systems, especially in industrial settings.
These applications highlight the versatility and reliability of trunnion mounted ball valves in a variety of high pressure and critical service environments.
Technical Drawing
Dimension Test
Pressure Test
Painting Thickness Test
Frequently Asked Questions
What are the core technical specifications of this Trunnion Mounted Ball Valve?
This trunnion mounted ball valve features a 6-inch size, 600LB pressure rating, flanged end connections, and is operated by a gear box. The body is constructed of robust WCB material, designed according to the API6D standard, and tested in accordance with API598.
What is the benefit of the trunnion design compared to floating ball valves?
In a trunnion design, the ball is fixed by a shaft or pin at both the top and bottom. This reduces the load on the valve seats, ensures stable operation under high pressures, and significantly lowers the operating torque required to open or close the valve.
What is Double Block and Bleed (DBB) capability?
DBB capability allows the valve to isolate both the upstream and downstream pressure lines simultaneously. This feature makes it safe and easy to bleed off excess pressure or fluid trapped in the valve cavity between the seats.
Is this trunnion mounted ball valve suitable for fire-safe applications?
Yes, many trunnion mounted ball valves feature a fire-safe design. This ensures that the valve remains operational and maintains critical sealing control to prevent hazardous leakage even under extreme fire conditions.
What testing procedures do these valves undergo?
The valves undergo rigorous quality control tests, including dimension testing, pressure testing to check sealing integrity, and painting thickness testing to ensure long-term corrosion resistance in harsh environments.