Cast Steel Trunnion Mounted Ball Valve

High-Performance Cast Steel Trunnion Mounted Ball Valve

Kunjian Tech offers professional-grade Cast Steel Trunnion Mounted Ball Valves engineered for the demanding requirements of the oil, gas, and petrochemical industries. Designed to comply with API 6D and ASME B16.34 standards, our valves ensure maximum safety and operational efficiency in high-pressure pipeline systems.

Unlike floating designs, the trunnion-mounted structure fixes the ball at two pivot points, significantly reducing operating torque and minimizing seat wear. This makes it the ideal choice for large-diameter and high-pressure applications where ease of operation and long-term durability are critical.

Key Technical Features:

• Provides independent sealing on both upstream and downstream sides for secure cavity venting.
• Certified to API 607/ISO 10497, ensuring secondary metal-to-metal sealing if soft seats are damaged by fire.
• Standard anti-static devices and a T-shaped blowout-proof stem for enhanced site safety.
• Automatically relieves excessive body cavity pressure to prevent valve damage.
• Trunnion bearings absorb hydraulic loads, allowing for smaller, more cost-effective actuators.

Specifications:

Size Range: NPS 2" to NPS 24" (DN50 – DN600)

Pressure Class: ASME Class 150 to Class 2500

Body Materials: WCB, LCB, CF8, CF8M, and Alloy Steels

Sealing: Soft seated (PTFE/NYLON/PEEK) or Metal-to-Metal

End Connections: RF, RTJ, and BW

Whether you are managing midstream pipelines or refinery processing, Kunjian Tech's trunnion ball valves deliver the "bubble-tight" shut-off performance your infrastructure requires.

Contact us today for technical datasheets and bulk B2B pricing.