High-Pressure Bidirectional Seal

摘要

A high-pressure connection in a conduit or enclosure utilizing a bidirectional, pressure-energized seal. Male and female flanges are provided, where one of the flanges has a recess that accommodates a seal ring. The outer peripheries of the two flanges' sealing surfaces are in contact with each so that clamping, bolting and bending stresses are not borne by the seal ring. The seal ring has a cross-section that includes a solid body and two V shaped sealing portions that extend from the body at an angle between 90 and 160 degrees. Each sealing portion has a set of opposing sealing faces with a cavity between them, so that fluid pressure within the cavity urges the sealing faces outward from the first cavity toward the flanges.

主权项

1. A device comprising:
a bidirectional pressure-energized seal ring having a cross-section which has a body, a first sealing portion adjacent to the body, including a first set of opposing sealing faces having a first cavity therebetween, wherein fluid pressure within the first cavity urges the first set of sealing faces outward from the first cavity, and a second sealing portion adjacent to the body, including a second set of opposing sealing faces having a second cavity therebetween, wherein fluid pressure within the second cavity urges the second set of sealing faces outward from the second cavity, wherein the first cavity opens away from the body toward a first direction, and the second cavity opens away from the body toward a second direction which forms an angle of between 90 degrees and 160 degrees with the first direction.