A pipe (100) comprises a first connector fitting (102) and a second connector fitting (104) downstream of the first. The fluid pressure within the pipe (100) is substantially equalised to the air pressure within the first connector fitting (102). Then a draw wire (4), fitted with a sail structure (6) is inserted through the first connector fitting (102). Fluid flow within the pipe (100) acts upon the sail structure 6 to move the draw wire (4) along the pipe (100) in towards the second connector fitting (104) where an extraction member (108) is inserted. The extraction member (108) is used to withdraw the draw wire (14) through the second connector fitting (104). The draw wire (4) is attached to a first end of a micro-duct (110) and thus a pulling mechanism (114) can act on the draw wire 4 to introduce the micro-duct (110) into the pipe (100) between the connector fittings (102, 104).

A pipe (100) comprises a first connector fitting (102) and a second connector fitting (104) downstream of the first. The fluid pressure within the pipe (100) is substantially equalised to the air pressure within the first connector fitting (102). Then a draw wire (4), fitted with a sail structure (6) is inserted through the first connector fitting (102). Fluid flow within the pipe (100) acts upon the sail structure 6 to move the draw wire (4) along the pipe (100) in towards the second connector fitting (104) where an extraction member (108) is inserted. The extraction member (108) is used to withdraw the draw wire (14) through the second connector fitting (104). The draw wire (4) is attached to a first end of a micro-duct (110) and thus a pulling mechanism (114) can act on the draw wire 4 to introduce the micro-duct (110) into the pipe (100) between the connector fittings (102, 104).

A vehicle includes a prime mover including at least two fluid conduits, and a heat shrink sleeve provided around the at least two fluid conduits. The heat shrink tube forms a conduit bundle of the at least two fluid conduits.

A vehicle includes a prime mover including at least two fluid conduits, and a heat shrink sleeve provided around the at least two fluid conduits. The heat shrink tube forms a conduit bundle of the at least two fluid conduits.

A method and apparatus for assembling a high purity liquid distribution system is described. A distal end portion of the tube is heated then pushed over a sleeve so that the distal end portion can have a shrink seal fit over the sleeve to mitigate accidental or inadvertent pull out of the tube from a fitting. Other benefits are also achieved such as minimal flow restriction of the liquid flowing through the joint and the tube.

A method and apparatus for assembling a high purity liquid distribution system is described. A distal end portion of the tube is heated then pushed over a sleeve so that the distal end portion can have a shrink seal fit over the sleeve to mitigate accidental or inadvertent pull out of the tube from a fitting. Other benefits are also achieved such as minimal flow restriction of the liquid flowing through the joint and the tube.

An exhaust adapter secures an exhaust tube relative to an exhaust pipe. The exhaust adapter is formed to have an annular shape enclosing a through hole, and is mounted on the outer peripheral surface of the exhaust tube and on the inner peripheral surface of the exhaust pipe by inserting the exhaust tube into the through hole. When the exhaust adapter is being fitted on the outer peripheral surface of the exhaust tube, the inner peripheral surface of the exhaust adapter presses the outer peripheral surface of the exhaust tube, and when the exhaust adapter is being fitted on the inner peripheral surface of the exhaust pipe, the outer peripheral surface of the exhaust adapter presses the inner peripheral surface of the exhaust pipe.

An exhaust adapter secures an exhaust tube relative to an exhaust pipe. The exhaust adapter is formed to have an annular shape enclosing a through hole, and is mounted on the outer peripheral surface of the exhaust tube and on the inner peripheral surface of the exhaust pipe by inserting the exhaust tube into the through hole. When the exhaust adapter is being fitted on the outer peripheral surface of the exhaust tube, the inner peripheral surface of the exhaust adapter presses the outer peripheral surface of the exhaust tube, and when the exhaust adapter is being fitted on the inner peripheral surface of the exhaust pipe, the outer peripheral surface of the exhaust adapter presses the inner peripheral surface of the exhaust pipe.

A bi-directional seal assembly for sealing the annulus between an inner tubular member and an outer tubular member comprises an annular seal which in cross section includes a generally U-shaped first portion having a radially inner first leg and a radially outer second leg and a generally U-shaped second portion having a radially inner third leg and a radially outer fourth leg. The second and third legs are joined together such that the first leg engages the inner tubular member and the fourth leg engages the outer tubular member. Pressure below the seal urges the first leg into sealing engagement with the inner tubular member and forces the second and third legs radially outwardly to thereby urge the fourth leg into sealing engagement with the outer tubular member. Also, pressure above the seal urges the fourth leg into sealing engagement with the outer tubular member and forces the second and third legs radially inwardly to thereby urge the first leg into sealing engagement with the inner tubular member.

A bi-directional seal assembly for sealing the annulus between an inner tubular member and an outer tubular member comprises an annular seal which in cross section includes a generally U-shaped first portion having a radially inner first leg and a radially outer second leg and a generally U-shaped second portion having a radially inner third leg and a radially outer fourth leg. The second and third legs are joined together such that the first leg engages the inner tubular member and the fourth leg engages the outer tubular member. Pressure below the seal urges the first leg into sealing engagement with the inner tubular member and forces the second and third legs radially outwardly to thereby urge the fourth leg into sealing engagement with the outer tubular member. Also, pressure above the seal urges the fourth leg into sealing engagement with the outer tubular member and forces the second and third legs radially inwardly to thereby urge the first leg into sealing engagement with the inner tubular member.