公开(公告)号：US3765646A

公开(公告)日：1973-10-16

申请号：US3765646D

申请日：1972-02-18

Applicant: DRESSER IND

Inventor： HULSLANDER W ,  ANDERSON G ,  GLOVER C

IPC: F16K5/02

CPC classification number: F16K5/0278

Abstract: A floating closure seal usable in conjunction with a tapered plug in the conical well of a plug valve body. Forming the seal is an elastomeric composition generally enclosing an arcuate span of a relatively thin, flexible base material. On the backside facing a recess in the supporting plug, the seal includes localized elastomeric projections engaging the recess wall. The projections act to distend the seal on its front side into diametral conformity with the proximate body well surface for effecting a sealing relation therewith.

Abstract translation: 浮动封闭密封件可与插塞阀体的锥形孔中的锥形塞结合使用。 形成密封件是通常包围相对薄的柔性基材的弓形跨度的弹性体组合物。 在面向支撑塞中的凹部的背面上，密封件包括接合凹陷壁的局部弹性突起。 突出物用于将其前侧上的密封件膨胀成与邻近的身体孔表面的直径一致，以实现与其的密封关系。

公开(公告)号：US3806087A

公开(公告)日：1974-04-23

申请号：US26898272

申请日：1972-07-05

Applicant: DRESSER IND

Inventor： HULSLANDER W

IPC: F16K5/02 ,  F16K5/16 ,  F16K5/00

CPC classification number: F16K5/0278 ,  F16K5/166 ,  Y10T29/49417

Abstract: A rotatable operating plug for opening and closing the fluid flow passage in the body of a plug valve. The plug is conically tapered of cast construction and includes a thru port for alignment with the body flow passage in the open position. To accurately and consistently control manufacturing tolerances in dimensionally critical areas, plug casting is effected with a controlled parting line located on the widest surface segment. The segment is functionally non-cooperative with the opposite body surface and the parting line thereon extends in a direction normal to the longitudinal axis of plug rotation.

Abstract translation: 用于打开和关闭旋塞阀主体中的流体流动通道的可旋转操作塞。 塞子是锥形锥形的铸造结构，并且包括用于与主体流动通道在打开位置对准的通孔。 为了精确和一致地控制尺寸关键区域中的制造公差，使用位于最宽表面段上的受控分型线实现塞子铸造。 该段与相对的主体表面在功能上不协调，并且其上的分型线在垂直于插头旋转的纵向轴线的方向上延伸。