A torque retention arrangement for a flange bolt connector for use with pipe. The torque retention arrangement a carrier body and a plurality of springs. The carrier body can include a plurality of spring holes equi-spaced around a circumference. A plurality of springs in a vertical stack can be mounted in each of the plurality of spring holes in the carrier. Each spring is in a convex orientation in a pre-torque condition and is in a planar orientation in a post-torque condition.

A first duct segment may include a first flange including a first planar mating face and a first recess. A second duct segment may include a second flange including a second planar mating face and a second recess. The first duct segment and the second duct segment may be installed in a gas turbine engine. A first E-seal may be inserted in the first recess, and a second E-seal may be inserted in the second recess. A gap may be measured between the first flange and the second flange. A flat shim may be selected based on the size of the gap. The flat shim may be inserted between the first flange and the second flange. A plurality of bolts may be inserted through the first flange, the flat shim, and the second flange to seal the first duct segment to the second-duct segment.

A first duct segment may include a first flange including a first planar mating face and a first recess. A second duct segment may include a second flange including a second planar mating face and a second recess. The first duct segment and the second duct segment may be installed in a gas turbine engine. A first E-seal may be inserted in the first recess, and a second E-seal may be inserted in the second recess. A gap may be measured between the first flange and the second flange. A flat shim may be selected based on the size of the gap. The flat shim may be inserted between the first flange and the second flange. A plurality of bolts may be inserted through the first flange, the flat shim, and the second flange to seal the first duct segment to the second-duct segment.

A torque retention arrangement for a flange bolt connector for use with pipe. The torque retention arrangement a carrier body and a plurality of springs. The carrier body can include a plurality of spring holes equi-spaced around a circumference. A plurality of springs in a vertical stack can be mounted in each of the plurality of spring holes in the carrier. Each spring is in a convex orientation in a pre-torque condition and is in a planar orientation in a post-torque condition.

A torque retention arrangement for a flange bolt connector for use with pipe. The torque retention arrangement a carrier body and a plurality of springs. The carrier body can include a plurality of spring holes equi-spaced around a circumference. A plurality of springs in a vertical stack can be mounted in each of the plurality of spring holes in the carrier. Each spring is in a convex orientation in a pre-torque condition and is in a planar orientation in a post-torque condition.

A seal fitting assembly comprises a first block having a first aperture, a second aperture, and a first annular sealing surface surrounding the first aperture. A second block has a third aperture and a fourth aperture. An insert has a fifth aperture, a second annular sealing surface, and a second threaded portion. A first seal structure is disposed between the first annular sealing surface and the second annular sealing surface. An adapter has a sixth aperture, a surface of the adapter defining the sixth aperture including a third threaded portion configured to engage the second threaded portion of the insert. A second seal structure is disposed between the insert and the adapter. A fastener is received in the second aperture of the first block and the fourth aperture of the second block.

A method and a device for sealing between pair of pipe flanges (1, 2; 25, 26). At least one flange (1; 2; 26) is has a face with a circular groove (6; 7; 27) to at least partly receive a sealing ring (9; 21) which has its ring wall rectilinear as seen in a cross-section when front faces of the pipe flanges are spaced apart. A bottom (13; 14; 28) of the groove (6; 7; 27) exhibits a first transition (15; 16; 29) between the bottom and a radially located inner wall of the groove, and a second transition (17; 18; 30) between the bottom and a radially located outer wall of the groove. The ring (9; 21) in side view exhibits a shape like a truncated cone. The pipe flanges (1, 2; 25, 26) are attached to each other to yield that the flanges (1,2; 25, 26) in operative state are forcibly held in an abutting and facial engagement, and upon tensioning of tensioning means (3, 4) to create said operative state, compressive forces act onto the sealing ring (9; 21) to yield that its wall, as viewed in cross-section, is bent radially to exhibit a curved configuration.

Provided is a flange joining structure having excellent earthquake resistance, for which the joining operation can be performed simply and easily, similar to conventional practice. A flange joining structure provided with a first member having a first annular flange part, a second member having a second annular flange part, and a seal body placed between the first member and the second member, these components being connected and joined together by a bolt and a nut. The seal body has an annular base part formed from a metal plate and an elastic seal part provided integrally to the annular base part, the elastic seal part being provided so as to cover the annular base part, and the elastic seal part of the seal body sealing the space between the first annular flange part and the second annular flange part.

Provided is a flange joining structure having excellent earthquake resistance, for which the joining operation can be performed simply and easily, similar to conventional practice. A flange joining structure provided with a first member having a first annular flange part, a second member having a second annular flange part, and a seal body placed between the first member and the second member, these components being connected and joined together by a bolt and a nut. The seal body has an annular base part formed from a metal plate and an elastic seal part provided integrally to the annular base part, the elastic seal part being provided so as to cover the annular base part, and the elastic seal part of the seal body sealing the space between the first annular flange part and the second annular flange part.

A gasket in a transport refrigeration system (TRS) and method of preventing corrosion in a compressor using a gasket. The gasket includes a body, where the body includes a fluid pass portion, and a flange that extends from the body. The body and the flange include a second layer between an outside first layer and a third layer. The second layer is a metal and the metal is a non-uniform thickness that extends across the flange and the body to deflect compression load distribution.