公开(公告)号：US3834663A

公开(公告)日：1974-09-10

申请号：US20633771

申请日：1971-12-09

Applicant: JAMESBURY CORP

Inventor： DONNELLY J

IPC: F16K1/226 ,  C10L1/14 ,  C10L1/18 ,  C10L1/30 ,  F16K1/228 ,  F16K1/22

CPC classification number: F16K1/2285 ,  C10L1/14 ,  C10L1/1814 ,  C10L1/182 ,  C10L1/1828 ,  C10L1/188 ,  C10L1/306

Abstract: Disclosed is a butterfly valve particularly adapted for service with high pressure and high temperature fluids, and fluids containing suspended solids such as slurries. A butterfly valve is provided with a metal seat ring having a curved metal lip that is adapted to contact the peripheral surface of the valve disc. The metal seat has a configuration that enables fluid pressure from one side of the valve to enhance the sealing effectiveness of the valve. The lip of the seat is positioned to provide an interference fit with the periphery of the disc when the valve is closed, so that the valve is capable of sealing fluid from either side of the disc over a portion of the pressure rating of the valve.

Abstract translation: 公开了一种特别适用于高压和高温流体以及含有悬浮固体如浆料的流体的蝶形阀。 蝶阀具有金属座圈，该金属座圈具有弯曲的金属唇缘，该弯曲的金属唇缘适于与阀盘的周面相接触。 金属座具有能够使阀的一侧的流体压力提高阀的密封效果的结构。 座椅的唇部被定位成当阀门关闭时与盘的周边形成过盈配合，使得阀能够在阀的压力等级的一部分上从盘的任一侧密封流体。

公开(公告)号：US3801066A

公开(公告)日：1974-04-02

申请号：US3801066D

申请日：1971-07-01

Applicant: JAMESBURY CORP

Inventor： MILES M ,  DONNELLY J

IPC: F16K1/228

CPC classification number: F16K1/2285

Abstract: Disclosed is a butterfly valve particularly adapted for service with cryogenic fluids at temperatures down to -320* F and lower wherein a butterfly valve is provided with a seat that has a configuration that permits the seat to shrink upon exposure to lowered temperatures and to engage a protrusion in the valve housing. The forces generated by the shrinkage of the seat and the engagement with the protrusion cause the seat to deform in a controlled manner and maintain sealing engagement with the butterfly disc despite the dimensional changes of the valve components attributable to exposure to the cryogenic fluid.

Abstract translation: 公开了一种蝶阀，特别适用于在低于-320°F及更低的温度下使用低温流体的蝶阀，其中蝶阀设置有座椅，该座椅具有允许座椅在暴露于降低的温度下收缩并且接合 突出在阀壳体中。 由于座椅的收缩和与突起的接合而产生的力导致座椅以受控的方式变形并且保持与蝴蝶盘的密封接合，尽管由于暴露于低温流体而导致的阀部件的尺寸变化。