公开(公告)号：US4778150A

公开(公告)日：1988-10-18

申请号：US022992

申请日：1987-03-06

申请人： Robert B. Pratt ,  Stephen G. Ratkowski ,  Donald J. Kalivoda

发明人： Robert B. Pratt ,  Stephen G. Ratkowski ,  Donald J. Kalivoda

IPC分类号： F16K31/50 ,  F16K41/04

CPC分类号： F16K31/508 ,  F16K41/043

摘要： A rising stem valve comprising a valve body, a two part valve stem and a stem guide washer. The valve body has a valve seat in a passage between an inlet and outlet port. The two part valve stem comprising a rotating stem and a non-rotating stem and the rotating stem has a threaded bore receiving a threaded end of the non-rotating stem. The non-rotating stem has a non-circular cross section external of the threaded bore and is adapted to carry a closure head to the valve seat. The stem guide washer has a bore positioned in mating relationship with the noncircular cross section of the non-rotating stem, whereby the stem guide washer prevents the stem from rotating when the upper stem is rotated.

摘要翻译： 一种上升杆阀，包括阀体，两部分阀杆和杆导向垫圈。 阀体具有在入口和出口之间的通道中的阀座。 两部分阀杆包括旋转杆和非旋转杆，并且旋转杆具有接纳非旋转杆的螺纹端的螺纹孔。 非旋转杆在螺纹孔的外部具有非圆形横截面，并且适于将闭合头承载到阀座。 杆导向垫圈具有与非旋转杆的非圆形截面成配合关系的孔，由此当上杆旋转时，杆引导垫圈防止杆旋转。