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The Principle Of Three-plece Model Ball Valve

Edit:Vatac Vango Valves (Wenzhou) Corp      Date:Mar 20, 2015

Three ball valve works It works as follows: First, open process [Wiki] mechanical [/ wiki] to put pressure on the role of 1 in the closed position, the sphere of the valve stem, pressed on the seat. Turn handwheel, the valve stem is the reverse movement, the bottom of the angular plane so that the sphere to disengage the valve seat. 3 stem continue to enhance the interaction and stem the spiral groove of the guide pin, the sphere began to friction-free to rotate. 4 up to the fully open position, the stem raised to the limit position, the sphere rotated to the fully open position. Second, the shutdown process A closed, clockwise rotation of the handwheel, stem began to decline and make a sphere out of the seat begins to rotate. 2 Continue turning the handwheel, the valve stem by the spiral groove embedded in its role of guide pins, so that the stem and the sphere at the same time rotated 90 °. 3 near the closed sphere in the case of contact with the seat rotated 90 °. 4 handwheel is turned the final laps, the stem at the bottom of the angular plane mechanical wedge to the oppression of the sphere, so that it closely pressed on the seat, to achieve complete seal. 

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Vatac Vango Valves (Wenzhou) Corp is one of the best China steam trap, check valve, knife gate valve, flow control valve, trunnion ball valve, stainless steel check valve, electromagnetic flowmeter, metal expansion joint manufacturers and suppliers, as a company, our professional factory can always produce products at both good quality and price.
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