Trunnion Ball Valve
Production Overview
The Trunnion Ball Valve from Vcore Valves is a highly reliable valve designed for high-pressure and large-diameter pipeline systems, commonly used in oil & gas, power plants, and petrochemical industries. The unique design of the trunnion ball valve features a fixed ball that is supported by trunnions (a type of bearing), which minimizes wear and tear while maintaining consistent performance. Our design offers greater sealing capacity and torque, making it ideal for systems that require high reliability and performance under extreme conditions.
Key Features
-
Fixed Trunnion Design – Provides support for the ball, reducing wear and ensuring consistent performance
-
High Pressure & Large Diameter Capability – Ideal for large-scale industrial applications
-
Full Bore Design – Minimizes pressure drop and ensures efficient flow with minimal obstruction
-
Reliable Sealing – Features a tight seal even under extreme pressure and temperature conditions
-
Actuation Options – Available with manual, electric, pneumatic, or hydraulic actuators for remote control
-
Durable Construction – Made from high-strength materials like stainless steel, carbon steel, and alloys for corrosion resistance
-
Easy Maintenance – Simple design with easy access to parts for quick maintenance and repair
-
Global Standard Compliance – Manufactured to meet ANSI, API, and ISO standards
Technical Specifications
| Item | Description |
|---|---|
| Valve Type | Trunnion Ball Valve |
| Body Material | Stainless Steel (304, 316), Carbon Steel, Alloy Steel (F22) |
| Ball Material | Stainless Steel (316) or Chrome-Plated Carbon Steel |
| Seat Material | PTFE, PEEK, Metal Seat |
| Stem Material | Stainless Steel (304, 316) |
| Seal Material | PTFE, NBR, FKM |
| Coating | Fusion Bonded Epoxy (FBE), Anti-Corrosion Coating |
| Size Range | DN50–DN1200 (2”–48”) |
| Pressure Rating | PN10 / PN16 / PN25 / 150LB / 300LB |
| Temperature Rating | -20°C to +200°C (soft seat), up to 500°C (metal seat) |
| Connection Types | Flanged (ANSI B16.34), Butt Weld, Socket Weld |
| Actuation Options | Manual, Pneumatic, Electric, Hydraulic |
| Media | Water, Oil, Gas, Steam, Chemicals, Slurries |
| Standards Compliance | API 6D, ISO 9001, ANSI B16.34, BS 5351 |
Main Dimensions & Weight
| DN (mm) | L (mm) | H (mm) | W (mm) | Weight (kg) |
|---|---|---|---|---|
| 50 | 200 | 280 | 160 | 15 |
| 100 | 250 | 350 | 180 | 25 |
| 150 | 300 | 450 | 220 | 45 |
| 200 | 350 | 550 | 250 | 70 |
| 250 | 400 | 650 | 300 | 100 |
| 300 | 450 | 750 | 350 | 150 |
| 400 | 500 | 850 | 400 | 220 |
| 600 | 600 | 1000 | 500 | 300 |
Function
Our Trunnion Ball Valve is designed to regulate the flow of fluids in high-pressure systems by using a fixed ball supported by two trunnions (bearings) that reduce ball wear and allow for smoother operation. When the actuator turns the stem, the ball rotates to control the flow of fluid through the valve. This provides reliable sealing and minimizes wear on the valve components, ensuring long-term durability in high-pressure and high-flow applications.
The full bore design ensures that the flow is unrestricted when the valve is open, making it ideal for systems that require high flow rates and minimal pressure loss. The trunnion design makes the valve resistant to high torque and wear, which is particularly beneficial in applications where there are frequent pressure fluctuations or high flow velocities.
Trunnion ball valves are designed for on/off control and are typically used in pipelines that handle liquids, gases, and slurries. They can be equipped with a range of actuators, including electric, pneumatic, or hydraulic, for automated operation. The full bore design ensures minimal flow resistance and pressure loss, making this valve ideal for high-flow applications.
Application
-
Oil & Gas – Flow control in pipelines, pumping stations, and refineries
-
Power Generation – Isolation and regulation of steam and water systems in power plants
-
Petrochemical & Chemical Processing – Flow regulation of aggressive chemicals and slurries
-
Water Treatment – Isolation of high-pressure water lines in treatment plants
-
Mining – Flow control for slurry and tailing pipelines
-
HVAC Systems – Regulation of high-pressure heating and cooling fluids in large buildings
-
Fire Protection – Isolation and control in firewater systems