
API 6D/608 High-Pressure DN350 Class150-600 Trunnion Mounted Flanged Carbon Steel Ball Valve
TIANYU trunnion mounted flanged carbon steel ball valve is a rugged, high-performance flow control solution engineered specifically for the demanding requirements of oil & gas pipelines, natural gas transmission systems, and heavy industrial production. As a trunnion-mounted (fixed ball) valve, it features a structurally superior design where the ball is supported by upper and lower trunnions—transferring fluid pressure forces to robust bearings instead of relying on valve seats. This configuration ensures exceptional sealing stability, reduced operational torque, and extended service life in high-pressure, high-cycle applications where leakage or structural failure could lead to catastrophic safety hazards, environmental damage, or costly production downtime.







