Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring
A metal sealing ring, double eccentric technology, applied in the direction of lift valve, valve device, engine components, etc., can solve the problems of complex sealing structure, achieve the effect of simplifying the sealing structure, improving reliability and ensuring the internal sealing performance
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[0010] Depend on figure 1 , figure 2 As shown in the figure, an S-shaped elastic double O-shaped metal sealing ring hard-sealed double eccentric butterfly valve includes a double eccentric butterfly plate 1, a valve body 8, and a valve stem 9. Its characteristic is that between the double eccentric butterfly plate 1 and the valve body 9 There is an integrated S-shaped elastic double O-shaped metal sealing ring 2, which is formed by connecting large and small elastic O-shaped metal sealing rings through the metal of the S-shaped outer ring. The O-shaped metal sealing ring 2 has an adjustment mechanism composed of a pressure ring 3, a control ring 7, a positioning plate 4, an adjustment bolt 5, and a retaining ring 6 to adjust the deformation amount and deformation direction of the large and small elastic O-shaped metal sealing rings.
[0011] Depend on image 3 As shown, the S-shaped elastic double O-shaped metal sealing ring 2 is formed by connecting large and small ela...
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