There is provided a pipe connection arrangement for a heat exchanger and a method of connecting a pipe to a heat exchanger utilising a pipe connection arrangement. The pipe connection arrangement includes: a metallic block fitting; a flange for coupling to the block fitting; and a seal. The block fitting includes a bore extending therethrough for receiving a pipe for connection to a heat exchanger and the flange includes a bore extending therethrough for receiving the pipe. The block fitting includes a surface that faces the flange when the flange is coupled to the block fitting. The seal is configured for location between and for abutting both the surface of the block fitting and an annular collar of a pipe when it is connected by the pipe connection arrangement. The pipe extends through the bore of the flange and the flange is coupled to the block fitting.

A gas station for delivery of gas to appliances, in particular in a building, comprising a casing (12) and a gas regulation device (13) with several components comprising a gas regulator 14 and one filter (32), wherein the gas regulation device (13) is mounted or mountable within the casing (12), wherein the casing (12) comprises a ground plate (10) and a cover element (11) being securable or secured onto the ground plate (10), wherein the ground plate (10) is configured for mounting to a wall or to an external mounting post (50).

An apparatus includes a telescopic double tubular member accommodated in an outer case that is mounted so as to surround an outer circumferential surface of a water pipe, and placed between a pair of cut faces. The double tubular member includes an anti-corrosion member that faces the pair of cut faces and a core member, and is configured such that the anti-corrosion member is radially expanded by the core member, so as to be pressed against the pair of cut faces. The anti-corrosion member has a through hole that communicates with the water pipe, and a flange positioned above the through hole and extending radially outward. The flange has an abutment surface that abuts an outer circumferential surface of the water pipe, and this abutment surface is curved along the outer circumferential surface of the water pipe.

A gas station for delivery of gas to appliances, in particular in a building, comprising a casing (12) and a gas regulation device (13) with several components comprising a gas regulator 14 and one filter (32), wherein the gas regulation device (13) is mounted or mountable within the casing (12), wherein the casing (12) comprises a ground plate (10) and a cover element (11) being securable or secured onto the ground plate (10), wherein the ground plate (10) is configured for mounting to a wall or to an external mounting post (50).

A gas station for delivery of gas to appliances comprising a casing and a gas regulation device comprising at least a gas regulator and a filter. The gas regulation device is mounted within the casing which comprises a ground plate and a cover element secured onto the ground plate. The ground plate is configured for mounting to a wall or an external mounting post and comprises at least one spacer, so that the ground plate is attached to the wall or the external mounting post in such a way that a predefined gap is maintained between the ground plate and the wall or between the ground plate and the mounting post. The ground plate includes a flap which supports the gas regulation device and the cover element and a hook configured to hook the cover element in the ground plate via a locking element.

There is provided a pipe connection arrangement for a heat exchanger and a method of connecting a pipe to a heat exchanger utilising a pipe connection arrangement. The pipe connection arrangement includes: a metallic block fitting; a flange for coupling to the block fitting; and a seal. The block fitting includes a bore extending therethrough for receiving a pipe for connection to a heat exchanger and the flange includes a bore extending therethrough for receiving the pipe. The block fitting includes a surface that faces the flange when the flange is coupled to the block fitting. The seal is configured for location between and for abutting both the surface of the block fitting and an annular collar of a pipe when it is connected by the pipe connection arrangement. The pipe extends through the bore of the flange and the flange is coupled to the block fitting.

The apparatus includes a telescopic double tubular member 2 accommodated in an outer case 1 that is mounted such as to surround an outer circumferential surface of a water pipe K, and placed from above between a pair of cut faces 10 formed by making a full cut of the water pipe K. The double tubular member 2 includes an anti-corrosion member 3 that faces the pair of cut faces 10 of the pipe and a core member 4 to be inserted into the anti-corrosion member 3 from above, and is configured such that the anti-corrosion member 3 is radially expanded by the core member 4 being inserted into the anti-corrosion member 3, so as to be pressed against the pair of cut faces 10 of the pipe. The anti-corrosion member 3 has a through hole 31 that communicates with the water pipe K, and a flange 35 positioned above the through hole 31 and extending radially outward. The flange 35 has an abutment surface that abuts on an outer circumferential surface of the water pipe K, and this abutment surface is curved along the outer circumferential surface of the water pipe K.

A gas station for delivery of gas to appliances comprising a casing and a gas regulation device comprising at least a gas regulator and a filter. The gas regulation device is mounted within the casing which comprises a ground plate and a cover element secured onto the ground plate. The ground plate is configured for mounting to a wall or an external mounting post and comprises at least one spacer, so that the ground plate is attached to the wall or the external mounting post in such a way that a predefined gap is maintained between the ground plate and the wall or between the ground plate and the mounting post. The ground plate includes a flap which supports the gas regulation device and the cover element and a hook configured to hook the cover element in the ground plate via a locking element.

A pipeline connector that is piggable and is reinforced against deformation. At the point where the connector diverges from one pipeline to multiple pipelines, the connector may be surrounded by a tube, forming a space between the connector and the tube. The space may be filled with filler material, such as grout. Thus, radial pressure from the contents of the pipeline may be borne by the tube rather than the connector at the point of divergence. The ends of the tube surrounding the connector may be covered by plates, which may enclose the grout-filled space and which may act as feet for the pipeline connector.

A robot and method of controlling a tool carried by a robot in a main pipe where the tool is operable to extend into a branch conduit extending from the main pipe. The robot can be moved to a location in the main pipe corresponding to a branch conduit opening location where the branch conduit opens into the main pipe by referencing a digital map of the main pipe. The tool can be extended from the robot toward the branch conduit opening at an angle corresponding to an angle the branch conduit makes with the main pipe so as to reduce the likelihood of contact of the tool with a wall of the branch conduit.