초록 ▼

A swivel joint for incorporation in a pipe network maintains flow path integrity at the joint for both swivel and rigid connection modes. A butt flange and a connector body having aligned flow paths therethrough are coupled together by a bearing which provides rotational movement between the butt fl

A swivel joint for incorporation in a pipe network maintains flow path integrity at the joint for both swivel and rigid connection modes. A butt flange and a connector body having aligned flow paths therethrough are coupled together by a bearing which provides rotational movement between the butt flange and the connector body. A dynamic seal is disposed between the butt flange and the bearing. A retainer between the bearing and the connector body allows axial movement therebetween when the connector body is urged toward the butt flange, but restrains such axial movement when the connector body is urged away from the butt flange. A static seal carried by the butt flange and axially spaced from the connector body in the swivel mode is engaged by the connector body when the latter is moved axially toward the butt flange, thereby establishing the rigid connection mode. The apparatus includes diverse structure for moving the connector body axially and thereby obtaining engagement between the static seal and the connector body.

대표청구항 ▼

A swivel joint having a fluid flow path therethrough, comprising a butt flange assembly having an axis aligned with the fluid flow path, a clamp hub included in said butt flange assembly, a connector body having an axis aligned with the fluid flow path, means disposed between said butt flange assemb

A swivel joint having a fluid flow path therethrough, comprising a butt flange assembly having an axis aligned with the fluid flow path, a clamp hub included in said butt flange assembly, a connector body having an axis aligned with the fluid flow path, means disposed between said butt flange assembly and said connector body for preventing axial separation and for providing swiveling motion therebetween, means for retaining said last named means in substantially fixed axial position relative to said connector body for axial separating force therebetween and for allowing axial displacement for axial converging force therebetween, means for providing a dynamic seal between the fluid flow path and the outside of the swivel joint during swiveling motion between said connector body and said butt flange assembly, and a static seal mounted on said butt flange assembly axially spaced from said connector body, so that axial converging force applied between said clamp hub and said connector body seats said static seal against said connector body, whereby said connector body is locked rotationally with said butt flange assembly and fluid flow between the fluid flow path and the outside of the swivel joint is blocked.