Trunnion Mounted Ball Valve is the preferred choice of ball valve in higher sizes and pressure ratings and is used in pipelines and critical process applications. The valves have advanced design features such as a built-in cavity relief mechanism, anti-static, and intrinsic double block and bleed facility. The valves are of 2-piece or 3-piece design, bolted/welded at the body connection joint, with flanged/butt weld ends, in reduced and full bore designs. These valves are available in forged construction as well as cast construction. Full Internal weld overlay or weld overlay on seat pocket area and body cavity can be provided with in-house cladding facility.
Metal seated valves seat and ball surface are either Tungsten carbide, Chromium carbide coated or Stellite Coated with in-house HVOF coating technology. Fully welded ball valves are also offered, eliminating the potential flange leak path and increasing resistance to pipeline pressure and stress with an in-house welding facility. STEM extension can be provided depending upon the customer’s requirements. Seat construction with single piston effect and double piston effect can be provided. All valves are fire-safe tested as per API 607/API 6FA.
Product Details :
- Trunnion Mounted Ball Valve design complies to API 6D, API 608.
- Fire-safe to ISO 10497 and API 607 and API 6FA.
- Fugitive emissions – Soft and Metal seated valves complies to ISO 15848-1, Class AH and BH.
- Double block and bleed (DBB) feature – Valves are designed and tested for automatic cavity relief.
- Anti-blowout stem design.
- Coil springs used for consistent seat loading and lower operating torque.
- Lip seals provided for low temperature services.
- Where tight shut off is required, Double piston effect (DPE) seats provided for redundancy in sealing.
- Cavity Pressure Relief mechanism.
- Stem seal configurations to API 622.
- Mirror-finished solid stainless ball.
- Antistatic feature.
- Actuator-mounting flange conforms to ISO 5211.
- Single, two and three piece constructions.
- Full-bore and regular-bore designs.
- Soft and metal-seated.
- Flanged ends, Butt Weld Ends, Socket-weld Ends and Screwed Ends.
| Specifications | Details |
| Design Standard | API 6D, API 608 |
| Pressure/Temperature Chart | ASME B16.34 |
| Face to face Dimension | ASME B16.10 |
| Testing Standard | API 598 / API6D / BS EN 12266-1 |
| Flange Details | ASME B16.5 UP TO 24″ |
| ASME B16.47 26″ and Above | |
| DIN / BS / IS / JIS | |
| Butt-Weld End Details | ASME B16.25 |
| Size Range | 2″ – 24″ (DN50 – DN600) |
| ASME Class | Class 150 to 2500 |
| Bore Type | Full Bore and Reduced Bore |
| Materials | A105 / LF2 / LF3 / F316 / F304 / |
| F316L / F51 / F55 / F6a / WCB / LCB / | |
| LCC / CF8M / CF8 / CF3M / 4A / 6A / Inconel | |
| Trims | F6A / F316 / F304 / F316L / F51 / F55 / |
| Inconel / 17.4 PHF6a / F316 / F304 / F316L / F51 / F55/ /Inconel / 17.4 PH | |
| Seat | Soft / Metal |
| Ends | Flange ends, Butt-weld End |
| Operation | Manual, Pneumatic, Electric |
