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High Pressure Fully Welded Trunnion Ball Valve (DN50–DN1400, ASME Class 150–2500) | DELCO

DELCO High Pressure Fully Welded Trunnion Ball Valve is engineered for transmission and station pipelines where the valve body is expected to stay sealed and maintenance access is limited. A fully welded pressure boundary removes split-body bolting joints, helping reduce potential external leak points and making it suitable for buried or long-life service. It is available from DN50 to DN1400 with ASME Class 150–2500, and can be supplied with end connections to match GB/ANSI/DIN/JIS requirements.

Size Range:DN50-DN1400 ASME Cla5S: ASME 150~2500LB

API Standard: API 2000~15000

Connection Standard:GB / ANSl/DIN/JIS

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Features

A fully welded pressure boundary focuses on long-term sealing integrity, making it a preferred choice for buried and low-maintenance high-pressure pipelines.

✅Fully Welded Pressure Boundary: Designed to avoid body joint flanges/bolting interfaces, supporting long-life sealing integrity in pipeline service.

✅Buried & Limited-Access Friendly: Commonly selected for underground or hard-to-access locations where routine retightening and frequent maintenance are undesirable.

✅Trunnion-Mounted Core for High Loads: Fixed-ball support improves mechanical stability under differential pressure, especially on larger diameters.

✅Large-Diameter Operation Readiness: Can be supplied with gear operator for smoother, safer manual operation where torque demand is high.

✅Project Standard Matching: DN50–DN1400, ASME Class 150–2500; end connection standard can align with GB / ANSI / DIN / JIS specifications.

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Key Application Fields

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