
Split Body Trunnion Ball Valves: API 6D Class 2500 High-Pressure Isolation
Engineered for Extreme Pressure and Critical Service
This 6 Inch Split Body Trunnion Mounted Ball Valve is designed for the most demanding high-pressure applications in the Oil and Gas, Petrochemical, and Power Generation industries. Conforming rigidly to the API6D standard, this valve is rated up to Class 2500 and utilizes RTJ Flange Ends for superior sealing integrity in harsh environments.
The 3–Piece Split Body structure allows for easy assembly and disassembly, while the Trunnion mounting and DBB functionality ensure safe, reliable, and verifiable isolation.
🔑 Key Features and Operational Advantages
Split Body (3–Piece) Design: The body’s modular construction allows for precise machining, superior structural integrity, and straightforward in-line maintenance accessibility.
Trunnion Mounted: Provides mechanical support to the ball, ensuring low, consistent operating torque and reliable sealing under Class 2500 thrust loads.
Double Block and Bleed (DBB): Achieves verifiable isolation. When closed, both the upstream and downstream seats seal the flow, allowing trapped pressure in the body cavity to be vented (bled) for safety confirmation.
Ring Type Joint (RTJ) Ends: Provides a metal-to-metal sealing ring groove, guaranteeing the highest level of joint integrity and leak resistance, essential for high-pressure and high-temperature services.
Side Entry Structure: Standard construction allowing for straightforward installation into critical pipeline sections.
📋 Detailed Technical Specifications
| Component | Specification | Description |
| Type | Trunnion Mounted Ball Valve | Side Entry, 3–Piece Split Body Structure |
| Design Standard | API 6D Specification for Pipeline Valves | Guarantees dimensional and performance compliance. |
| Nominal Size | 6 Inch (DN150) | Standard pipeline size. |
| Pressure Rating | Class 2500 (PN420) | Engineered for extreme pressure service. |
| Body Material | ASTM A350 LF2 | Forged Low-Temperature Carbon Steel (ideal for lower temperatures). |
| Trim Material | LF2 + ENP / Stainless Steel | Enhanced trim components for corrosion and wear resistance. |
| Seat Material | PEEK | High-performance polymer offering superior chemical and high-temperature resistance. |
| End Connections | Flanged RTJ (Ring Type Joint) | Best-in-class seal for severe, high-pressure flange connections (ASME B16.5 / B16.47). |
| Functionality | Double Block and Bleed (DBB) | Essential for verified safety isolation. |
🔬 Ideal Applications
This Split Body Class 2500 Trunnion Ball Valve is the definitive choice for applications where safety and absolute shut-off verification are mandatory:
High-Pressure Injection Systems
Pipeline Compressor Stations
Process Isolation requiring DBB Verification
High-Temperature and Low-Temperature (Cryogenic) Service due to LF2 material selection.
📞 Ensure Integrity: Request a Quote
Invest in the highest level of pipeline safety and performance. Our API 6D Class 2500 Split Body Trunnion Ball Valves are built to endure.
Contact our engineering team to verify compliance and request a comprehensive quote.
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