Eccentric/concentric combined sealing valve seat
A sealing valve, combined technology, applied in multi-way valves, valve devices, cocks including cut-off devices, etc., can solve problems such as low sealing level, poor opening of valves, easy accumulation of medium, etc., and achieve high sealing level , Eliminate the effect of inflexible opening and valve jamming
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[0010] Depend on figure 1 It can be seen that the present invention is arranged in the valve body flow port of a three-way reversing valve comprising a valve body 1, a spherical double-channel valve core 2, a valve cover and an opening and closing shaft, and it is composed of a concentric sealing valve seat and an eccentric sealing valve seat. Set at both ends of the valve body 1 and the valve core 2, the valve seat and the valve core 2 are fitted and sealed by the spring preload force and medium pressure, including the eccentric sealing valve seat body 4, the concentric sealing valve seat body 5, and the flat spring 12. Support ring 7, eccentric sealing ring 6, valve seat pressure cap 8, sealing gasket 9, adjusting pad 10, eccentric soft seal 13 and concentric sealing ring 11, of which:
[0011] The concentric sealing valve seat body 5 is set between the valve core 2 flow channel opening and the inner wall of the valve body 1, and is concentric with the valve core 2 and forms...
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