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公开(公告)号：US4658978A
公开(公告)日：1987-04-21
申请号：US747959
申请日：1985-06-24
申请人： Morio Ikematsu , Tohru Wada , Tohru Nakanishi , Nobuo Ishigami
发明人： Morio Ikematsu , Tohru Wada , Tohru Nakanishi , Nobuo Ishigami
CPC分类号： F16K27/067 , Y10T137/6116
摘要： A top entry ball valve is proposed which has a valve body formed with a valve chamber, a valve mounted in the valve chamber, a seat ring at the low-pressure side, and a seat ring assembly having another seat ring, a belleville spring and a seat ring holder at the high-pressure side. The seat ring assembly can be easily mounted into and removed out of the valve chamber by use of a clamp while comprising the belleville spring. The clamp comprises a pair of clamping pieces fastened together with a bolt.
摘要翻译： 提出了一种顶进球阀，其具有形成有阀室的阀体，安装在阀室中的阀，在低压侧的阀座环，以及具有另一个阀座环，贝氏弹簧和 高压侧的座圈保持架。 座圈环组件可以容易地通过使用夹具安装到阀室中并从壳室中移除，同时包括贝氏弹簧。 夹具包括一对用螺栓紧固在一起的夹紧件。
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公开(公告)号：US4641681A
公开(公告)日：1987-02-10
申请号：US858796
申请日：1986-05-02
申请人： Morio Ikematsu , Hiromichi Hiranuma
发明人： Morio Ikematsu , Hiromichi Hiranuma
CPC分类号： F16K5/0673 , F16K5/0636 , Y10T137/6045 , Y10T137/6109 , Y10T29/53552
摘要： A clamp for use with a top entry type ball valve having a valve casing, a valve body, a seat ring, and a seat ring assembly consisting of another seat ring, a belleville spring and a seat ring holder. The clamp has a pair of clamping plates, a clamping bolt, and a pair of fulcrum bolts. These bolts are screwed through the clamping plates. The lower ends of the clamping plates engage the top of the seat ring and the seat ring holder, respectively. The clamping plates are moved away from each other at the clamping bolt and the distance between them is kept constant at the fulcrum bolts. Thus, the clamping force is applied to the lower ends of the clamping plates.
摘要翻译： 一种用于具有阀壳体，阀体，座圈和由另一个座圈，百叶窗弹簧和座圈保持器组成的座环组件的顶入式球阀的夹具。 夹具有一对夹紧板，夹紧螺栓和一对支点螺栓。 这些螺栓拧紧通过夹板。 夹紧板的下端分别接合座圈和座圈保持架的顶部。 夹紧板在夹紧螺栓处彼此远离，并且它们之间的距离在支点螺栓处保持恒定。 因此，夹紧力被施加到夹紧板的下端。
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