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热词
    • 5. 发明授权
    • Diaphragm valve
    • 隔膜阀
    • US5131627A
    • 1992-07-21
    • US599004
    • 1990-10-17
    • Terrence J. Kolenc
    • Terrence J. Kolenc
    • F16K41/12
    • F16K41/12
    • A diaphragm valve includes a single layer, metal diaphragm cooperating with a plastic valve seat. The surface area and volume of the valve seat is limited. Additionally, the central portion of the diaphragm is generally hemispherically offset and extends axially from a planar periphery. The actuating stroke of the valve is maintained less than the offset that is formed in the diaphragm. Lastly, the valve seat is secured in such a manner to insure repetitive long term shutoff under a variety of operating conditions and limit entrapment and outgassing of potential system contaminants.
    • 隔膜阀包括与塑料阀座配合的单层金属隔膜。 阀座的表面积和体积受到限制。 此外,隔膜的中心部分通常半球偏移并且从平面周边轴向延伸。 阀的致动行程保持小于在隔膜中形成的偏移。 最后,阀座以这样的方式固定,以确保在各种操作条件下重复的长期关闭,并限制潜在的系统污染物的捕获和除气。