Z45T( W) Gate valves, Copper or iron seal face body and disc, valve body and disc T, W) The valve body and disc should swap as required. T production. W the body blank, need a pair of body mould, two pairs of core box. A pair of core box match body mold production T body blank die, the other a pair of blank production W the valve body. Because of the two - body appearance - Within the sample, the shape difference is small, not easy to distinguish, there is confusion. According to the production and processing and usage, it is suggested that T. The exchange of design need not consider W valve body and disc. In order to Z45T ( W) 1 - D80 center line of valve sealing surface size ( Figure) As an example. Through analysis, choose the iron sealing face of valve body and disc sealing surface line size remains the same, change size (copper seal face gate valve sealing surface of the center line Table) 。 In order to avoid T, w body blank confusion, design two kinds of body size. After the improvement, reduced the core box mold, the original mould changes little. When machining, T. Two sides than W, two sides processing 1 mm more, Tn mode to reduce 2 mm. W the body iron after sealing surface wear, ram down cannot be blocked. The improved T/W has no swapping Industrial Valves body and disc, but the processing is convenient, meets the requirement.

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