Trunnion Mounted Ball Valve – API 6D High-Pressure Valve for Industrial Applications

Product Overview

Our trunnion mounted ball valves are built for high-pressure, high-demand industrial applications such as oil & gas pipelines, petrochemical plants, and power stations. The trunnion design supports the ball to reduce seat wear and provides reliable shutoff performance even in the toughest conditions. These valves are compliant with API 6D, ASME B16.34, and fire-safe standards.

Technical Specifications

Valve Type: Trunnion Mounted Ball Valve
Sizes: 2” to 60” (DN50–DN1500)
Pressure Class: ANSI 150# to 2500#
Body Materials: Carbon Steel, Stainless Steel, Duplex, Inconel
Ball/Stem: SS316, ENP coated, or Tungsten Carbide
Seat Options: Soft (PTFE, Devlon) or Metal Seated
Design Standard: API 6D, ASME B16.34
End Connections: Flanged, Butt Weld, RTJ, Hub Ends
Operation: Manual, Electric, Pneumatic, or Hydraulic
Temperature Range: -46°C to +250°C (varies by seat material)

Key Features

• Double Block and Bleed (DBB) capability
• Low operating torque due to trunnion support
• Anti-blowout stem for enhanced safety
• Fire-safe and anti-static design (API 607/6FA)
• Emergency sealant injection system
• Compliance with API 6D & ISO 14313 standards

Common Applications

• Oil & Gas Transmission Pipelines
• Petrochemical Refineries
• Gas Processing Plants
• FPSO and Offshore Platforms
• Power Generation Facilities

Why Choose a Trunnion Ball Valve?

Unlike floating ball valves, trunnion-mounted ball valves are ideal for larger sizes and higher pressures. The ball is anchored by trunnions, reducing load on the seats and allowing smoother, lower-torque operation, making them the go-to solution for critical shut-off applications.

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