Trunnion Mounted Ball Valves (API 6D) for High-Pressure Pipelines
Key features:
Double Block and Bleed (DBB): Our valves are engineered with double block and bleed feature which allows isolation in both upstream & downstream pressure with cavity relief valve to vent trapped pressure
Anti-static device: Built in spring loaded anti-static device, preventing static buildup in flammable environments like Oil & Gas, Chemicals and other hazardous applications
Blowout Proof Stem: The stem is designed blowout proof to work under high system pressure
Fire safe design: Our valve comes with fire safe design and in accordance with API 6D
Looking for a High-Pressure Ball Valve Solution? Contact Hubluxe Engineering today for a competitive quote on Trunnion Mounted Ball Valve.
High-Performance Isolation for Critical Process Lines
Hubluxe Engineering is a leading Trunnion Mounted Ball Valve Manufacturer delivering robust flow control solutions for the oil, gas, petrochemical, and power industries. Trunnion Mounted Ball Valves are designed in accordance with key international standards.
This design ensures low operating torque and a reliable seal even at extreme pressures, making it the preferred choice for large-diameter pipelines and critical shutoff applications.
The valves are offered in a various body options, materials, trims and actuation options to address critical services in Oil & Gas, Energy & Power, Hydrocarbon, power and allied industries.
Trunnion Mounted Ball Valve technical specifications:
Product: ‘HUBLUXE’ Trunnion Mounted Ball Valve
Size: DN 50 – DN 600 (2” – 24”)
Body Material of construction (MOC): A216 Gr. WCB, A351 Gr. CF8 / CF8M, CF3M, A352 Gr. LCB / LCC, Monel
Pressure class: 150#, 300#, 600#
Bore size: Full Bore / Reduce Bore
End connections: Flange end (ASME B16.5), Butt weld end (ASME B16.25)
Design standard: ASME B16.34 / EN ISO 17292 / BS 5351
Face to Face standard: ASME B16.10
Testing standard: API 598 / EN-12266
Flange standard: ASME B16.5 / EN1092-1
Drilling Standard: ANSI B16.5
Mode of operation: Manual handwheel / Pneumatic / Hydraulic / Electrical actuator
Standard construction details of Trunnion mounted ball valve
| Sr. No. | Part Name | Material |
|---|---|---|
| 1 | Body | WCB / CF8 / CF8M / CF3M |
| 2 | Connector | WCB / CF8 / CF8M / CF3M |
| 3 | Ball | CF8 / CF8M / CF3M |
| 4 | Seat Ring | CF8 / CF8M / CF3M |
| 5 | Stem | ASTM A276-T316 |
| 6 | Gland Flange | CF8 / CF8M / CF3M |
| 7 | Seat Inserts | PTFE / RPTFE / VITON |
| 8 | Springs | Inconel X-750 |
| 9 | Body connector gaskets | Graphoil with SS316 Spiral |
| 10 | Body Trunnion gaskets | Graphoil with SS316 Spiral |
| 11 | Stem Packing | RPTFE (Carbon / Glass filled) |
| 12 | Gland Packings | RPTFE (Carbon / Glass filled) |
| 13 | Body Studs & Nuts | ASTM A193 Gr. B8M & A194 Gr. 8M |
| 14 | Trunnion Studs & Nuts | ASTM A193 Gr. B8M & A194 Gr. 8M |
| 15 | Trunnion | ASTM A351 Gr. CF8M + White metal bush |
| 16 | Seat 'O' Ring | EPDM / PTFE |
| 17 | Connector 'O' Ring | EPDM / PTFE |
| 18 | Gland | ASTM A276-T316 |
| 19 | Gland Studs & Nuts | Carbon Steel |
| 20 | Bracket | Carbon Steel |
| 21 | Gear | Standard |
Trunnion mounted ball valve applications:
- Oil & gas
- Petrochemicals
- Power generation
- Floating production storage and offloading (FPSO)
- LNG
- Fertilisers
- Steel & Mining
- Sugar Mills
- Food & Beverages
- Pharmaceuticals
FAQs (Frequently asked questions)
Find detailed answers to common questions about Trunnion Mounted Ball Valve (TMBV) in our Knowledge centre.
A trunnion mounted ball valve is a type of isolation valve with quarter turn type where the ball is attached (anchored) at the top and bottom by shaft which is known as trunnion.
Unlike the floating ball valve, the ball in TMBV (Trunnion Mounted Ball Valve) is supported at both ends by a trunnion, reducing bearing pressure and allowing for effective sealing at high pressures. It is ideal for large-size and high-pressure applications.
It is intended to function as fully OPEN or fully CLOSED. These valves are widely known for their double block and bleed (DBB) functionality, offering complete isolation of flowing fluid.
Hubluxe Engineering manufactures valves designed in accordance with API 6D standards, ensuring they meet the face-to-face dimensions, pressure-temperature ratings, and testing protocols required for pipeline service.
Yes. Full Bore Trunnion Mounted Ball Valves provide an unobstructed flow path matching the pipe ID, making them ideal for pipeline pigging and cleaning.
Double Block and Bleed (DBB) seals against pressure from both sides but relieves cavity pressure to the lower pressure side. Double Isolation and Bleed (DIB) (available on request) use bi-directional seats to isolate the cavity strictly, often required for critical isolation service application.
Trunnion mounted valves have a fixed ball and movable seats, ideal for high-pressure and large-diameter pipelines. Floating ball valves have a ball that moves slightly to create a seal, and are better suited for low to medium pressure systems.