This disclosure relates to a device in the form of a connecting pipe for use in heat pump devices for decoupling as well as for vibration control. The device includes a pipe section as well as a connecting element arranged at each end. The device further includes two non-metallic, spaced, staggered bellows assemblies for vibration compensation, the pipe section having a constant material thickness between the connecting elements, apart from any individual stabilizing rings. In addition, the bellows arrangements includes of one or more annularly closed foldings, each extending 360°.

A system comprises a tube and a bender. The tube comprises a first cylindrical portion and a second cylindrical portion. An undulated portion is disposed between the first cylindrical portion and the second cylindrical portion. Alternatively, the tube can comprise a plurality of cylindrical portions and undulated portions. The bender comprises a plurality of L-shaped brackets and a plurality of U-shaped brackets, and further includes a driving rod subassembly.

An expansion joint for a solids return system includes a female joint portion, a male joint portion received by the female joint portion, the male joint portion and the female joint portion forming a lateral breach therebetween, a double rope seal positioned within the lateral breach, the double rope seal being configured to accommodate relative lateral movement between the female joint portion and the male joint portion, and an insulating pillow received about the male joint portion and abutting a distal end surface of the female joint portion, the insulating pillow being configured to accommodate relative axial movement between the female joint portion and the male joint portion.

An expansion joint for a solids return system includes a female joint portion, a male joint portion received by the female joint portion, the male joint portion and the female joint portion forming a lateral breach therebetween, a double rope seal positioned within the lateral breach, the double rope seal being configured to accommodate relative lateral movement between the female joint portion and the male joint portion, and an insulating pillow received about the male joint portion and abutting a distal end surface of the female joint portion, the insulating pillow being configured to accommodate relative axial movement between the female joint portion and the male joint portion.

A flanged fitting includes an annular fitting flange having an annular end face. A glass liner lines a radially inner annular portion of the annular end face of the annular fitting flange. A radially outer annular portion of the annular end face of the annular fitting flange is free from the glass liner. The radially inner annular portion and the radially outer annular portion of the annular end face of the annular fitting flange define an annular gasket abutment face configured to seat a gasket thereon. An annular gasket includes an annular gasket layer. The annular gasket layer includes a radially inner annular gasket segment including a first material suitable for forming a liquid-tight seal with an opposing flange. A radially outer annular gasket segment surrounds the radially inner annular gasket segment. The radially outer annular gasket segment is fire-rated for forming a fire-rated seal with the opposing flange.

A flexible conduit element with an end portion that is designed for attachment to a rigid conduit element. The flexible conduit includes a bellows member, an interlock member, an outer fixing member and a connection nozzle. An attachment portion of the connection nozzle extends beyond the outer fixing member and the interlock member and ends in a flared shape to form a gas-tight seal.

A compensator (100) comprising an upstream sleeve (30) configured for being connected in a sealed manner to an upstream pipe (2), a downstream sleeve (31) configured for being connected in a sealed manner to a downstream pipe (3), and a bellows (1) connecting, in a sealed manner, the upstream sleeve and the downstream sleeve. The compensator (100) further comprises a backup assembly (4) comprising a backup bellows (5), the backup assembly being suitable for switching from a rest state, in which the backup assembly is not sealingly connected to at least one of the upstream sleeve and the downstream sleeve, to an operating state, in which the backup assembly is sealingly connected to the upstream sleeve and to the downstream sleeve.

A compensator (100) comprising an upstream sleeve (30) configured for being connected in a sealed manner to an upstream pipe (2), a downstream sleeve (31) configured for being connected in a sealed manner to a downstream pipe (3), and a bellows (1) connecting, in a sealed manner, the upstream sleeve and the downstream sleeve. The compensator (100) further comprises a backup assembly (4) comprising a backup bellows (5), the backup assembly being suitable for switching from a rest state, in which the backup assembly is not sealingly connected to at least one of the upstream sleeve and the downstream sleeve, to an operating state, in which the backup assembly is sealingly connected to the upstream sleeve and to the downstream sleeve.

A flexible, thermal-isolating tube includes a first fluid flow channel portion having a dual-walled configuration, a second fluid flow channel portion having a dual-walled configuration, and a bellows disposed between and coupled to each of the first and second fluid flow channel portions. The flexible, thermal-isolating tube, including each of the first and second fluid flow channel portions, and the bellows, is configured as a unitary structure. The flexible, thermal-isolating tube is manufactured using an additive manufacturing process. The flexible, thermal-isolating tube is disposed within a gas turbine engine

A flexible, thermal-isolating tube includes a first fluid flow channel portion having a dual-walled configuration, a second fluid flow channel portion having a dual-walled configuration, and a bellows disposed between and coupled to each of the first and second fluid flow channel portions. The flexible, thermal-isolating tube, including each of the first and second fluid flow channel portions, and the bellows, is configured as a unitary structure. The flexible, thermal-isolating tube is manufactured using an additive manufacturing process. The flexible, thermal-isolating tube is disposed within a gas turbine engine