Compared to floating ball valves, trunnion-mounted ball valves feature an additional support for the ball from the bottom. This support is called a trunnion. The trunnion absorbs any pressure from the flow and keeps the ball constantly in the same position. The sealing is provided by spring-loaded seats. This design reduces the stress on the ball and seats of the valve and makes the sealing performance more stable and consistent, independent of the flow pressure. Trunnion-mounted ball valves are ideal in high-pressure services, while allowing for low operating torque requirements.

Fully welded, full port, straight ball, trunnion-mounted ball valves, designed specifically for natural gas distribution systems.

Manufactured from high-grade carbon steel material, they can be used in below-ground or above-ground applications.

Features:

• 304 stainless steel balls and stem standard
• Standard horizonal gear operator or optional vertical gear operator
• Positive stops
• Seats of 25% carbonized PTFE (Teflon) (G-453) rated to -20F
• Zinc coated stem bearings
• Serial numbered for full traceability
• Trunnion mounted, 100% full port
• API 6D tested