公开(公告)号：US3701362A

公开(公告)日：1972-10-31

申请号：US3701362D

申请日：1971-07-12

Applicant: DRESSER IND

Inventor： REESE ANTHONY L

IPC: F16K1/22 ,  F16K37/00 ,  F16K17/14

CPC classification number: F16K37/0008 ,  F16K1/22 ,  Y10T137/1669 ,  Y10T137/8292 ,  Y10T137/8811

Abstract: A butterfly valve construction having an outside indicator for indicating vane relation between open and closed positions of the valve. A single assembly mode between the vane, drive shaft and outside indicator assures accurate exterior indication of vane relation. Vane operating force is transmitted through a replaceable shear pin which, in event of operating interference, fractures to prevent damage to other valve components.

Abstract translation: 蝶阀结构，具有用于指示阀的打开和关闭位置之间的叶片关系的外部指示器。 叶片，驱动轴和外部指示器之间的单一组装模式确保叶片关系的精确外部指示。 叶片操作力通过可更换的剪切销传递，在剪切销的作用下发生破裂，以防止损坏其他阀门部件。