Product Features & Advantages
Unmatched Structural Stability & Low Operating Torque: The trunnion-mounted ball is supported at both ends, eliminating stem-side loading and preventing ball float. This design ensures the ball remains perfectly centered, which drastically reduces the torque required to operate the valve, especially in high-pressure applications, and protects the actuator or operator from excessive stress.
Exceptional Sealing Integrity & Longevity: Sealing is achieved by pressurized seats that are pushed against the stationary ball. This mechanism provides bubble-tight shut-off and is highly resistant to wear from erosive media. The balanced forces on the ball and seats ensure consistent, leak-free performance over millions of cycles.
Engineered for High-Cycle & Frequent Operation: Built with durability as a priority, the valve's robust internal components and minimized wear mechanisms make it ideal for applications requiring frequent switching. It delivers consistent performance with minimal maintenance, reducing total cost of ownership.
Seamless Automation Readiness: The valve is equipped with a standardized ISO 5211 mounting pad, facilitating direct and easy integration with pneumatic, electric, or hydraulic actuators. This allows for precise and reliable remote control in automated process systems.
Proven High-Pressure Capability: The trunnion design is inherently suited for high-pressure service. By containing the hydraulic forces within the sturdy body and trunnions, the valve maintains its integrity and sealing capability in demanding industrial conditions, including hydraulic power units and main process lines.
Our Service
We provide comprehensive support to ensure optimal performance and integration of our heavy-duty valves:
◎Detailed Technical Documentation: Each valve comes with assembly, operation, and maintenance guides to ensure correct installation and long-term reliability.
◎Easy Maintenance & Repair Kits: The design is service-friendly, and we offer readily available replacement part kits, including seats, stems, and seals, to facilitate quick repairs and minimize downtime.
◎Expert Actuation Support: We provide guidance and compatibility information for integrating with a wide range of aftermarket actuators, supporting both new automation projects and system upgrades.
FAQ
Q: What is a "Fixed" or "Trunnion-Mounted" ball?
A: A "Fixed" or "Trunnion-Mounted" ball is securely held in place by two integral support shafts (trunnions) at the top and bottom. It rotates in place for flow control but does not move or float axially under pressure. This contrasts with a "Floating Ball" design, where the ball is only connected to the stem and can be pushed downstream under pressure to create a seal.
Q: What are the key durability benefits of this design?
A: The key benefits are reduced wear and extended service life. By fixing the ball in place, there is minimal friction and mechanical stress on the seats and ball during operation. This design is exceptionally resistant to the effects of high-cycle operation, pressure-assisted sealing, and abrasive media, resulting in far greater longevity.
Q: Is this valve suitable for automation?
A: Absolutely. The standardized ISO 5211 mounting pad allows for direct attachment of virtually any industry-standard pneumatic or electric actuator. The inherently low operating torque of the trunnion design also means you can often use a smaller, more cost-effective actuator.
Q: What are the typical pressure ratings and industrial applications?
A: Trunnion-mounted ball valves are typically rated for higher pressures (e.g., ASME Class 600, 900, 1500, or higher) compared to floating ball valves. They are indispensable in critical sectors such as:
Oil & Gas: Pipeline transmission, wellhead control, and production manifolds.
Power Generation: High-pressure steam and feedwater systems.
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