Trunnion Mounted Ball Valve
Aarya Sales supplies trunnion mounted ball valves in India, designed for high-pressure and large-diameter applications in demanding industrial environments. These valves are manufactured in accordance with API, ASME, and ANSI standards, ensuring quality, safety, and reliable performance.
400# Three Piece Design F/E Full Bore Ball Valve WCB / SS 304 / SS 316
400# Three Piece Design F/E Full Bore Ball Valve WCB / SS 304 / SS 316
150# Three Piece Design F/E Full Bore Ball Valve WCB / SS 304 / SS 316
The trunnion-mounted design supports the ball with shafts at the top and bottom, reducing operating torque and improving stability compared to floating ball valves. This design also minimizes stress on valve seats, ensuring enhanced sealing performance even under high pressure.
These valves are widely used in oil & gas pipelines, petrochemical plants, and power industries, offering advanced features such as double block and bleed (DBB) and automatic cavity pressure relief. Sourced from trusted manufacturers, Aarya Sales ensures durable construction, efficient operation, and long service life.
Trunnion Mounted Ball Valve Supplier in India — Aarya Sales
Trunnion-mounted ball valves support the ball on top and bottom trunnions rather than letting it float against the seat, dramatically reducing operating torque and seat wear in large-bore, high-pressure service. Aarya Sales supplies trunnion-mounted ball valves in sizes 50 NB to 900 NB, Class 300# to Class 2500#, for pipeline and high-pressure process applications.
Materials: Carbon Steel (A216 WCB), Alloy Steel (WC6/WC9), Stainless Steel (CF8M), Duplex. Fire-safe design tested to API 607/6FA. Double block & bleed (DBB) function standard. Standards: API 6D, API 600. Approved for oil & gas pipeline and refinery service.
Frequently Asked Questions
A trunnion-mounted ball valve holds the ball in a fixed position using top and bottom trunnion shafts, rather than letting it float against the downstream seat. Spring-loaded seats provide the seal instead, which reduces operating torque and seat wear significantly compared to floating ball valves — especially important at Class 600# and above.
Trunnion-mounted valves are preferred for large-bore (typically 50 NB and above) and high-pressure (Class 600# and above) service, where a floating ball design would require excessive operating torque and suffer accelerated seat wear from the ball's weight bearing on the seat.
Yes. Trunnion-mounted ball valves with independent spring-loaded seats provide true double block and bleed functionality — both seats seal independently against line pressure, with a bleed port to verify seat integrity — a common requirement in pipeline and refinery specifications.
We supply trunnion-mounted ball valves from 50 NB to 900 NB, Class 300# to 2500#, to API 6D and API 600 standards, with fire-safe testing to API 607/6FA and full material test certification.