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公开(公告)号：US5645102A
公开(公告)日：1997-07-08
申请号：US308920
申请日：1994-09-20
CPC分类号： F16K1/446 , Y10T137/4245 , Y10T137/4259 , Y10T137/5762 , Y10T137/88046
摘要： A leak resistant, switching, double valve system consists of two sliding valve bodies in a valve housing with connecting lines. The two sliding valve bodies, which can be actuated independently of one another, are in contact in the closed position with valve seats in the valve housing, and are located at some distance one behind the other, forming a leak cavity between them. During the opening process, the first sliding valve body, before it leaves its valve seat, while simultaneously reducing the size of the leak cavity, can be placed in contact with the second sliding valve body, which is provided with a tubular extension which exits the valve housing in a sealed manner and connects the leak cavity to the environment of the valve system. With such a double valve system, the invention teaches that an optimal cleaning can be performed with minimal consumption of flushing agent, because the two sliding valve bodies can be moved independently of one another, each by a partial stroke opposite to the direction of the opening motion, into a flushing position, in which the sliding valve body is free from its valve seat and is in contact with a housing stop provided with flushing agent passages.
摘要翻译： 防漏，开关，双阀系统由带有连接线的阀壳体中的两个滑阀体组成。 可彼此独立地致动的两个滑动阀体在关闭位置处与阀壳体中的阀座接触，并且位于一定距离处一个接一个地在它们之间形成泄漏腔。 在打开过程中，第一滑动阀体在离开其阀座之前同时减小泄漏腔的尺寸可以与第二滑动阀体接触，第二滑动阀体设有一个管状延伸部， 阀壳体以密封的方式连接并将泄漏腔连接到阀门系统的环境。 使用这种双阀系统，本发明教导了可以以最少量的冲洗剂进行最佳的清洗，因为两个滑动阀体可以彼此独立地移动，每个通过与开口方向相反的部分行程 运动到冲洗位置，在该冲洗位置中，滑动阀体离开阀座并且与设置有冲洗剂通道的壳体止动件接触。
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公开(公告)号：US06098645A
公开(公告)日：2000-08-08
申请号：US78985
申请日：1998-05-14
CPC分类号： F16K1/446 , Y10T137/0402 , Y10T137/4259 , Y10T137/5762 , Y10T137/8803 , Y10T137/88046
摘要： A double-seat valve with an upper valve stem and a lower valve stem which, on the end, each have valve sealing bodies, each of which valve sealing bodies has a seal which is located on the balance diameter. One of the valve sealing bodies also has a center seal which is used to seal a leakage space when the valve stems are in the open position. The center seal also lies on the balance diameter. The other valve sealing body has a sealing collar, against which sealing collar the center seal is in contact when the valve stems are in the open position, so that even in this case, a sealing of the leakage space is guaranteed.
摘要翻译： 具有上阀杆和下阀杆的双座阀，其末端分别具有阀密封体，每个阀密封体具有位于平衡直径上的密封件。 阀门密封体中的一个还具有中心密封件，当阀杆处于打开位置时，其用于密封泄漏空间。 中心密封也位于平衡直径上。 另一个阀密封体具有密封套环，当阀杆处于打开位置时，密封套环与中心密封件接触，使得即使在这种情况下也可以保证泄漏空间的密封。
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