Worm gear drive wafer type butterfly valve
Metal seal butterfly valve
|Product Name:||Worm gear drive wafer type butterfly valve|
|1, three eccentric principles: the first eccentric - the stem axis deviated from the sealing surface of the center line: h the second eccentric - the stem axis deviated from the path center line: e third eccentric - inclined sealing surface of the cone center atPath centerline: α2, 3 eccentric structure completely eliminates the disc in a 90 ° rotation during the friction between the sealing surface.3, the real cone seal tightness reliable, attrition switch, opening and closing torque is small, easy operation and maintenance, installation, long service life.4, sealing structure, there are two, one for the flexible seal, which uses flexible metal seal ring valve ring or PTFE seals (Figure 1), and the other for the multi-level hard-seal, or valve seat seal is compatible with hard and softmulti-level structure (Figure 2) so that the sealing surface of contact between the uniform and reliable way to achieve zero leakage seals.5, high temperature, corrosion and wear.6, metal seals and high temperature properties of graphite, so that a fire safety valve.
|Parts Materials:||Name of the material body, the disc cast steel, stainless steel, chrome molybdenum stainless steel stem 2Cr13, 1Cr13, chrome molybdenum steel ring stainless steel, polyethylene in fat, anti-wear materials, stainless steel combined with high temperature asbestos flexible graphite packing
|Overall and connection dimensions:|
|Description:||This series of butterfly valve is factory successfully developed advanced technology of a high-performance butterfly valve product.This series of butterfly valve is widely used in petroleum, chemical, metallurgy, power, food, paper, plumbing, heating and environmental protection industries pipe for regulating fluid flow and cut off for use.
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