The ball valve insert comprises a shut-off element closely surrounded by a lining which has flanges on both sides. Disposed between the lining flanges are a housing body, resilient insets and, if necessary, a pressure member. The ball valve insert can be inserted in the housing in the ...
专利名称：BALL VALVE HAVING A BALL VALVE INSERT LINED WITH PLASTICS MATERIAL 发明人：NEMETZ, Josef 申请号：DE1995000508 申请日：19950418 公开号：WO95/029357P1 公开日：19951102 专利内容由知识产权出版社提供 摘要：The invention concerns a ball valve having a replaceable ball valve insert. The ball ...
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1. The fluid resistance is small, its resistance coefficient with section of equal length. 2. Simple structure, small volume, light weight. 3. Compact and reliable, the widespread use of plastic ball valve sealing surface of materials, good sealing, also has been widely used in the va...
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The invention relates to a one-piece lined plastic housing in which the lining or coating also provides the seal against the shut-off component. The invention is characterised by an economical production process and also by the fact that, in its embodiment as a compact fitting, the threaded jo...
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