公开(公告)号：US4305567A

公开(公告)日：1981-12-15

申请号：US128227

申请日：1980-03-07

申请人： William G. Lunt

发明人： William G. Lunt

IPC分类号： F16K5/02 ,  F16K5/22 ,  F16K41/04 ,  F16J15/22 ,  F16J15/24

CPC分类号： F16K5/222 ,  F16K41/046 ,  F16K5/0285 ,  Y10T428/30 ,  Y10T428/31544

摘要： A valve comprises a casing having a passageway therethrough for the flow of fluid and a bore intersecting the passageway. A flow regulating member is rotatably mounted in the bore for blocking the passageway in the valve closed position of the flow regulating member. The flow regulating member has a port therethrough for connecting and being in communication with the passageway in the valve open position. The flow regulating member and the casing define a first chamber at one end of the flow regulating member. A stem is rotatably mounted within the casing and is mechanically coupled to the flow regulating member to rotatably drive the flow regulating member within the casing. The stem has an annular rim formed toward and positioned within the first chamber. At least one annular seal surrounds the stem to effect the seal between the stem and casing. Valving and/or porting is provided for introducing a pressure equal to or greater than the line pressure into the first chamber whereby the pressure acts on the annular rim to move the stem in an axial direction to compress the annular seals which are alternate layers of polytetrafluoroethylene and graphite.

摘要翻译： 阀包括具有通道的壳体，用于流体流动和与通道相交的孔。 流量调节构件可旋转地安装在孔中，用于阻塞流动调节构件的阀关闭位置中的通道。 流量调节构件具有一个通过其的端口，用于在阀打开位置连接并与通道连通。 流量调节构件和壳体在流量调节构件的一端限定第一腔室。 杆可旋转地安装在壳体内并且机械地联接到流量调节构件以可旋转地驱动壳体内的流量调节构件。 所述杆具有朝向并定位在所述第一室内的环形边缘。 至少一个环形密封件围绕杆以实现杆和壳体之间的密封。 提供阀门和/或端口用于将等于或大于管线压力的压力引入第一室，由此压力作用在环形边缘上以沿轴向方向移动杆，以压缩作为聚四氟乙烯交替层的环形密封件 和石墨。

公开(公告)号：USRE30989E

公开(公告)日：1982-07-06

申请号：US165419

申请日：1980-07-03

申请人： Earl A. Bake ,  William G. Lunt

发明人： Earl A. Bake ,  William G. Lunt

IPC分类号： F16K1/10 ,  F16K31/50 ,  F16K41/12

CPC分类号： F16K41/12 ,  F16K1/10 ,  F16K31/50

摘要： A metal diaphragm valve including a multiple ply metal diaphragm structure comprised of a plurality of thin circular metal elements each having a planar annular rim surrounding a dome-shaped interior portion superimposed one on top of another with their annular rims fixed together to seal the hollow interior portion of a valve bonnet. A diaphragm contacting surface including at least two areas of different degrees of curvature, one of which is cruciform in shape, is mounted for axial movement in the valve bonnet. A method of making the metal diaphragm structure and a hermetically sealed valve assembly are also disclosed.