Trunnion Mounted Ball Valves are heavy-duty quarter-turn isolation valves designed for high-pressure and large-diameter pipeline applications. In this design, the ball is mechanically anchored by a trunnion at the bottom and supported at the top, allowing it to rotate without floating. Line pressure acts on the spring-loaded seats, ensuring reliable sealing while keeping operating torque low.
Applications
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Power Plants
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Boiler Feed Water Systems
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Pump Discharge Lines
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Oil & Gas Industry
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Refineries
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Chemical & Petrochemical Plants
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High-Pressure Water & Steam Systems
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Marine Application
Key Features
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Non-Slam Axial Flow Design
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Low Pressure Drop
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High-Speed Response
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Compact & Robust Construction
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Long Service Life
Valve Details
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Size Range 2 Inch to 48 Inch
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Pressure Class ASME Class #150 to #2500
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Body Material Carbon Steel / Alloy Steel / Stainless Steel
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Disc / Piston Material SS 304 / SS 316
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Spring Material Stainless Steel / Inconel (Optional)
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Seat Type Metal Seat
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End Connection Flanged / Butt Weld
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Design Standard ASME B16.34
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Testing Standard API 598