Vacuum regulating valve with ceramic valve element
A technology of vacuum adjustment and ceramic valve core, which is applied to the valve details, the parts in contact between the valve element and the valve seat, and the valve lift. Improved sealing performance, simple flow path, and low flow resistance
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[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0040] Such as figure 1As shown, the present invention provides a ceramic valve core vacuum regulating valve, including: valve body 1, valve seat cushion pad 2, valve seat 3, valve core lower cushion pad 4, valve core upper cushion pad 5, metal wear-reducing ring 6. Valve body nut 9, valve body stud 10, valve stem 11, disc spring 15, disc spring pressure plate 16, pressure plate nut 17, actuator 18, adjustment pad 19, pressure plate stud 21, leak detection hole 22, Bracket 24, valve body gasket 25, valve core lock nut 26, valve stem connection sleeve 27, valve core 28, valve seat lock nut 29, ceramic pressure pad wear-reducing ring 30, ceramic pressure pad 31, bellows and packing device; wherein, the bellows includes an upper bellows 13, a lower bellows 8, an upper bellows welding ring 12 and a lower bellows welding ring 7, and the packing de...
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