Abstract: A seal assembly is provided for maintaining a pressure difference between an exterior and an interior of an object having an access hatch and an access hatch frame. The seal assembly has a seal retainer having an interior face oriented toward the interior of the object, an exterior face oriented toward the exterior of the object, a hatch-side face oriented toward the access hatch and extending from the interior face to the exterior face, and frame-side face oriented toward the access hatch frame and extending from the interior face to the exterior face. The seal assembly also has at least one sealing member mounted on either the interior face or the exterior face of the seal retainer and a plurality of conduits formed in the seal retainer and extending from the exterior face to the interior face.

Abstract: A seal assembly is provided for a joint between a first pipe segment and a second pipe segment. The seal assembly has at least one primary sealing member mounted on the first flange and at least one supplemental sealing member mounted on the first flange between the first pipe segment and the at least one primary sealing member. A first sealed containment area is formed between the at least one primary and at least one supplemental sealing members when the sealing members are compressed. A plurality of conduits are formed in the first flange. A first supply conduit is located between the at least one primary sealing member and the at least one supplemental sealing member and a return conduit is located so that the at least one primary sealing member is positioned between the supply conduit and the return conduit.

Abstract: A seal assembly is provided for a joint between a first pipe segment having a first flange and a second pipe segment having a second flange. The seal assembly has at least one primary sealing member mounted on the first flange and forming a loop around the first pipe segment and at least one supplemental sealing member mounted on the first flange between the first pipe segment and the at least one primary sealing member, the at least one supplemental sealing member forming a loop around the first pipe segment. The seal assembly also has a first sealed containment area that is formed between the at least one primary and at least one supplemental sealing members when the at least one primary and at least one supplemental sealing members are compressed and a plurality of conduits formed in the first flange and extending from a first face of the first flange oriented away from the second flange to a second face of the first flange oriented toward the second flange.

Abstract: A seal assembly is provided for maintaining a pressure difference between an exterior and an interior of an object having an access hatch and an access hatch frame. The seal assembly has a seal retainer having an interior face oriented toward the interior of the object, an exterior face oriented toward the exterior of the object, a hatch-side face oriented toward the access hatch and extending from the interior face to the exterior face, and frame-side face oriented toward the access hatch frame and extending from the interior face to the exterior face. The seal assembly also has at least one sealing member mounted on either the interior face or the exterior face of the seal retainer and a plurality of conduits formed in the seal retainer and extending from the exterior face to the interior face.