公开(公告)号：US4364543A

公开(公告)日：1982-12-21

申请号：US244393

申请日：1981-03-16

申请人： Masahiro Soya ,  Isao Sato ,  Seiji Kurose

发明人： Masahiro Soya ,  Isao Sato ,  Seiji Kurose

IPC分类号： F16K31/50 ,  F16K41/02 ,  F16K41/14 ,  F16K41/18 ,  F16K43/00

CPC分类号： F16K31/50 ,  Y10T137/6065 ,  Y10T137/6106

摘要： A valve device comprises a valve body having an inflow passage and an outflow passage, a valve seat fixed to the valve body at a position between the passages, a valve element for seating against and separating from the valve seat, a valve stem movable together with the valve element toward and away from the valve seat, a stem holding member secured at a portion thereof to the valve body in the body interior and holding the valve stem at a screw engagement part therewith where a surface at an extremity of the portion of the stem holding member is in abutting contact with a surface of the main body thereby to form a first metal-contact seal, a bonnet which is detachably fixed to the valve body with a sealing member interposed therebetween, and through which the valve stem is rotatably fitted, where the bonnet covers the remainder portion of the stem holding member, and a mechanism for forming a second metal-contact seal at a stem holding part of the stem holding member when the valve is in the fully opened state thereof.

摘要翻译： 阀装置包括具有流入通道和流出通道的阀体，在通道之间的位置处固定到阀体的阀座，用于抵靠和离开阀座的阀元件，可与 所述阀元件朝向和远离所述阀座，杆保持构件，其固定在所述阀体的一部分处，并且将所述阀杆保持在与所述阀体的螺纹接合部分处的所述阀体的一部分处的表面， 杆保持构件与主体的表面邻接接触，从而形成第一金属接触密封件，阀盖可拆卸地固定到阀体上，密封构件插入其间，阀杆可旋转地安装在阀体上 其中所述发动机罩覆盖所述杆保持构件的剩余部分，以及用于在所述阀为所述杆保持构件的杆保持构件的杆保持部分处形成第二金属接触密封件的机构 处于完全打开状态。