Soft sealing ball valve
A soft sealing, ball valve technology, used in valve devices, cocks including cut-off devices, engine components, etc., can solve the problem that the service life of the ball valve does not meet the requirements, the sealing performance of the valve core and the valve seat is poor, and the cut-off performance of the ball valve is poor. Good and other problems, to achieve the effect of excellent cutting performance, small valve seat wear and excellent sealing performance
Inactive Publication Date: 2011-11-09
江苏德邦流体控制有限公司
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Problems solved by technology
[0002] Most of the existing ball valves use hard contact seals between the valve core and the valve seat, the wear of the valve seat is large, the sealing performance between the valve core and the valve seat is very poor, and the service life of the ball valve cannot meet the requirements; Poor performance, large liquid pressure loss
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[0009] Such as figure 1 As shown, a soft-sealed ball valve includes a main valve body 1, an auxiliary valve body 2, a valve core 3 and a main shaft 4, the lower end of the main shaft 4 is connected to the valve core 3, and the valve core 3 is placed in the main and auxiliary valve bodies 1, 2, between the valve core 3 and the main and auxiliary valve bodies 1 and 2 are provided with an elastic sealing valve seat 5, the elastic sealing valve seat 5 is made of Teflon PTFE, and the elastic sealing valve seat 5 and the auxiliary valve body 2 There is also a gasket 6 for sealing.
[0010] The present invention has a full-bore design, and the fluid pressure loss is small. In particular, the elastic sealing valve seat is adopted, and the valve seat has small wear and tear, excellent sealing performance, and long service life.
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The invention relates to a soft sealing ball valve which comprises a main valve body, a secondary valve body, a valve core and a main shaft, wherein the lower end of the main shaft is connected with the valve core; and the valve core is arranged in the main valve body and the secondary valve body. The soft sealing ball valve is characterized in that elastic sealing valve seats are respectively arranged between the valve core and the main valve body as well as between the valve core and the secondary valve body; and a sealing gasket for sealing is arranged between the elastic sealing valve seat and the secondary valve body. The soft sealing ball valve has a long service life and an excellent sealing performance.
Description
technical field [0001] The invention relates to a valve, in particular to a soft-sealed ball valve. Background technique [0002] Most of the existing ball valves use hard contact seals between the valve core and the valve seat, the wear of the valve seat is large, the sealing performance between the valve core and the valve seat is very poor, and the service life of the ball valve cannot meet the requirements; The performance is not good, and the liquid pressure loss is large. Contents of the invention [0003] The purpose of the present invention is to provide a soft sealing ball valve with excellent sealing and long service life. [0004] The technical scheme adopted in the present invention is: [0005] A soft-sealed ball valve includes a main valve body, an auxiliary valve body, a valve core and a main shaft, the lower end of the main shaft is connected to the valve core, the valve core is placed in the main and auxiliary valve bodies, and the valve core is connecte...
Claims
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IPC IPC(8): F16K5/06F16K5/08
Inventor 罗社新
Owner 江苏德邦流体控制有限公司