fully welded ball valve
A fully welded ball valve represents a sophisticated solution in fluid control technology, engineered specifically for critical applications where leak-tight performance is paramount. This valve type features a welded body construction that eliminates potential leak paths associated with conventional bolted designs. The core component, a spherical ball with a bore through its center, rotates within the valve body to control flow. When the valve is open, the bore aligns with the pipeline, allowing unrestricted flow. Upon rotation to the closed position, the ball creates a tight seal against specially designed seats. The fully welded construction method involves joining all body components through precision welding techniques, creating a single, robust unit. These valves are typically manufactured from high-grade materials such as carbon steel, stainless steel, or specialized alloys to withstand extreme pressures and temperatures. The design incorporates advanced sealing technology, including metal-to-metal seats for high-temperature applications or soft seats for enhanced sealing in moderate conditions. Modern fully welded ball valves often feature trunnion-mounted balls for larger sizes, reducing operating torque and minimizing seat wear.
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