In industrial flow control, certain components are valued for their reliability under demanding conditions. Neway Valve specializes in engineering valves that meet these rigorous standards, with the trunnion ball valve being a prime example of their focused expertise. This type of valve is specifically constructed to manage high-pressure applications effectively. Its operational principle distinguishes it from other valve designs, offering a distinct approach to controlling fluid flow.
The Fixed Core of the System
A trunnion ball valve incorporates a ball that is anchored or supported by a shaft at both its top and bottom. These supporting shafts are called trunnions, a feature from which the valve gets its name. Unlike a floating ball design that relies on line pressure to create a seal, the ball in a trunnion ball valve is mechanically fixed in place. This foundational support is what allows the component to handle significant system pressures without becoming dislodged, forming the basis of its robust performance.
Engaging the Sealing Mechanism
When the valve is in the open position, the bore of the ball is aligned with the pipeline, allowing for unobstructed flow. To shut off the flow, an actuator turns the ball 90 degrees, positioning its solid side across the pipeline. In trunnion ball valves, the subsequent action is critical. As the ball rotates into the closed position, spring-loaded seats are pushed against the surface of the ball. The fixed trunnion absorbs the force, preventing excessive stress on the seats and ensuring a tight, bubble-proof seal is achieved without overloading the mechanism.
Advantages in High-Pressure Scenarios
The fixed-trunnion design provides notable benefits, particularly for large-diameter or high-pressure lines. Because the ball is supported, the operating torque required to open and close the valve is considerably lower than that of a floating ball valve. This reduction in required force allows for smaller, more cost-effective actuators. The design also minimizes wear on the valve seats, contributing to a longer service life and reduced maintenance needs, even with frequent cycling.
The operational design of trunnion ball valves centers on managed force and mechanical stability. Neway Valve utilizes this robust principle to manufacture valves that provide dependable shut-off in challenging environments, ensuring system integrity and operational safety where it is most required.
