Flange type gas controlled floating ball valve
A floating ball valve, flange type technology, applied in the direction of valve details, valve device, valve shell structure, etc., can solve the problems of reduced service life of valve seat, large driving force, wear of valve seat, etc., to achieve reduced friction and long service life , the effect of low production cost
Inactive Publication Date: 2019-05-21
扬州市万隆气体有限公司
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Problems solved by technology
[0004] Compared with the fixed ball valve, the structure of the floating ball valve is simple, the manufacturing process is relatively simple, and the cost is low, but because all the pressure is borne by the valve seat, the driving force required to open and close the floating ball valve is also large
On the other hand, when the opening torque is large, the pressure on the valve seat itself increases, which is easily damaged, resulting in medium leakage
Even if it is not damaged, the friction between the ball and the seat will increase, causing the seat to wear, thereby reducing the service life of the seat
Method used
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[0010] A flanged gas control floating ball valve, the floating ball valve includes a ball 1, a valve body 2, a valve seat 3, a flange 4, a valve stem 5, a shaft sleeve 6, a support ring 7, a hand wheel assembly 8, and a washer 9 , O-shaped sealing ring 10, bearing 11 and telescopic mechanism 12, the flange 4 is arranged at both ends of the valve body 2, the ball 1 is arranged on the valve body 3 through the valve seat 3 and connected to the flange 4, One end of the valve stem 5 is connected to the sphere 1, and the other end is connected to the handwheel assembly 8. The bush 6 is arranged outside the stem 5, and the support ring 7 is arranged between the bush 6 and the stem. 5, one end of the support ring 7 is connected to the valve body 2 through the gasket 9 and the O-ring 10, and the other end of the support ring 7 is connected to the handwheel assembly 8 through the gasket 9 and the O-ring 10, so The end of the valve stem 5 facing the ball 1 is provided with a telescopic m...
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The invention relates to a flange type gas controlled floating ball valve. The floating ball valve comprises a ball body, a valve body, a valve seat, flanges, a valve stem, a shaft sleeve, a support ring, a hand wheel assembly, a washer, an O-shaped sealing ring, a bearing and a telescopic mechanism; the flanges are arranged at the two ends of the valve body; the ball body is arranged on the valvebody through the valve seat and communicates to the flanges; one end of the valve stem is connected to the ball body; the other end of the valve stem is connected to the hand wheel assembly; the shaft sleeve is arranged on the outer side of the valve steam; the support ring is arranged between the shaft sleeve and the valve stem; one end of the support ring is connected to the valve body througha washer and an O-shaped sealing ring; the other end of the support ring is connected to the hand wheel assembly through the washer and the O-shaped sealing ring; the end, facing the ball body, of thevalve stem is provided with a telescopic mechanism; and a spring assembly is used as the telescopic mechanism. The valve is simple in structure, high in overall strength, free of leakage due to the all-welded structure, convenient to mount, wide in application range, low in production cost, capable of reducing friction between the valve seat and the ball body, and long in service life.
Description
technical field [0001] The invention relates to a ball valve, in particular to a flange type gas control floating ball valve. Background technique [0002] In the prior art, ball valves can be divided into floating ball valves and fixed ball valves. Among them, the fixed ball valve means that the ball does not float, and the valve seat is movable. When working, the force generated by the fluid pressure in front of the valve on the ball is completely transmitted to the valve stem, which will not cause the ball to move to the valve seat, so the valve seat will not bear excessive pressure, so the torque of the fixed ball valve is small and the valve seat Small deformation, stable sealing performance, long service life, suitable for high pressure and large diameter occasions. Generally speaking, in order to fix the ball, the structure of the fixed ball valve is complicated, and the manufacturing process is more than that of the floating ball valve. [0003] Floating ball valv...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16K5/08F16K27/06F16K31/60
Inventor 张爱英王飞张爱忠
Owner 扬州市万隆气体有限公司