Product Overview
The Trunnion Mounted Ball Valve is a heavy-duty valve designed for high-pressure and large-diameter applications, providing reliable sealing and smooth operation.
Unlike floating types, the ball in this valve is fixed (supported by trunnions), which prevents seat overloading and ensures stable torque even under high pressure.
It offers tight shut-off, long service life, and high operating safety, making it ideal for oil & gas, petrochemical, and industrial pipeline systems.
Product Advantages
● Stable Operation under High Pressure: Fixed ball design minimizes seat stress and ensures consistent sealing.
● Excellent Tightness: Soft or metal seat options achieve zero leakage in Class 150 / Class 300 systems.
● Long Service Life: Low friction, corrosion-resistant materials extend maintenance intervals.
● High Safety Design: Fire-safe, anti-static, and anti-blowout configurations available.
● Optional Standards: Various design, test, and flange standards can be selected to meet specific project requirements.
Size Range
● NPS 2″ – 32″ / DN50 – DN800
Pressure Rating
● Class 150 (PN10 / PN16 / PN25)
● Class 300 (PN40 / PN63) (Note: Pressure ratings are selected based on material and customer requirements; not all configurations are available for every size.)
Optional Standards
● Design Standard: EN ISO 17292 / API 6D / ASME B16.34 (optional per project)
● Test Standard: EN 12266 / API 598 / API 6D
● Flange Standard: EN 1092-1 / ASME B16.5 / ASME B16.47
Industry Applications
● Oil and natural gas pipeline systems
● Petrochemical and refinery plants
● Power generation and energy projects
● Water and industrial fluid transportation
● Process control and automation systems
Tianjin Dingliu valve Industry Co., Ltd. is a high-tech enterprise specializing in the valve and automation industry.
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