Fully Welded Trunnion Mounted Ball Valves
Designed for leak proof performance, high strength, and long term reliability in demanding pipeline applications
Reliable Shut-Off Performance for Critical Pipeline Applications
Fully Welded Trunnion Mounted Ball Valves are engineered to provide dependable isolation in demanding oil, gas, petrochemical, and industrial pipeline systems. Designed with a fully welded body construction, these valves eliminate potential leakage paths associated with bolted body joints, ensuring enhanced safety, long service life, and superior sealing performance.
These valves are particularly suitable for natural gas transmission and distribution networks, as well as liquid service applications where tight shut-off, low pressure loss, and reliable operation are essential. The full bore design allows unrestricted flow through the valve, minimizing pressure drop and maximizing system efficiency.
Key Features
Fully welded body for maximum strength and leak free performance.
Trunnion mounted ball design ensures smooth operation and low torque.
Full bore construction minimizes pressure drop and maximizes flow efficiency.
Anti-blowout stem enhances operational safety.
Self relieving seats prevent cavity overpressure.
Anti-static device for safe handling of flammable media.
Soft seated design provides bubble tight shut-off.
Available with SPE and DPE seat configurations.
Fire safe certified to API 6FA and API 607 standards.
| Parameter | Specification |
|---|---|
| Size Range | 4" – 56" (NPS) |
| Pressure Class | ANSI Class 150, 300, 600, 900, 1500 |
| Temperature Range | -60°C to +250°C |
| Seat Design | Soft seal, Single and double piston effect |
| Fire Safety Certification | Fire tested to API 6FA, API 607 |
| Material Standards | ASTM, UNS, AISI, NACE MR-01-03 |
| End Connections | RF Flanged, Butt-Weld |
| Applications | Natural Gas, Oil & Gas Pipelines, Petrochemical and Industrial Services |
Frequently asked questions
Here are some common questions about our product.
A fully welded trunnion mounted ball valve has a welded body construction that eliminates bolted body joints, providing a strong, compact design with reduced potential leakage paths.
Their fully welded construction, tight shut-off, full bore flow path and robust design make them well suited for natural gas transmission and distribution pipelines where safety and reliable isolation are important.
A full bore design provides an unrestricted flow passage through the valve, helping minimize pressure drop and maintain efficient pipeline flow.
The trunnion mounted ball supports the ball from fixed points, helping reduce operating torque and providing smooth, reliable operation, particularly in larger and higher-pressure valves.
Yes. The valves are available with fire tested designs certified to API 6FA and API 607, providing additional safety for demanding oil, gas and petrochemical applications.
The listed fully welded trunnion mounted ball valves are available in sizes from 4" to 56", with pressure classes from ANSI 150 to 1500.