A system for supporting a paver layer that includes a layer of sand, a concrete layer, a base, drain pipes, and a gravel layer. The layer of sand, the concrete layer and the concrete layer are each formed in a substantially horizontal direction, with the layer of sand being formed above the concrete layer and the concrete layer being formed above the base. The drain pipes are provided in a substantially vertical orientation, with an upper end of each drain pipe provided within or slightly below the concrete layer.

A system for supporting a paver layer that includes a layer of sand, a concrete layer, a base, drain pipes, and a gravel layer. The layer of sand, the concrete layer and the concrete layer are each formed in a substantially horizontal direction, with the layer of sand being formed above the concrete layer and the concrete layer being formed above the base. The drain pipes are provided in a substantially vertical orientation, with an upper end of each drain pipe provided within or slightly below the concrete layer.

A flange tab system includes a first member having a first-member-first-portion and a first-member-second-portion, a second member having a second-member-first portion and a second-member-second-portion, a third member, and a ring-like member. The flange tab system provides an electrical fitting for electrical current flow between pipelines or other structures. The flange tab system is configured to secure a wire to a pipeline for cathodic protection and various other applications.

A flange tab system includes a first member having a first-member-first-portion and a first-member-second-portion, a second member having a second-member-first portion and a second-member-second-portion, a third member, and a ring-like member. The flange tab system provides an electrical fitting for electrical current flow between pipelines or other structures. The flange tab system is configured to secure a wire to a pipeline for cathodic protection and various other applications.

This disclosure describes a reinforced thermosetting resin piping system that is protected from external impact and UV damage by an outer polyurea-based layer. The embodiments described herein can be favorably used for underground and aboveground applications. In some implementations, an RTR pipe includes a core layer that includes a resin and fibers, an outer layer that includes a polyurea-based layer, and an interface layer between the core layer and the outer layer. The methods described herein also outline the process of producing the pipe structure.

A pipe insulation spacer system has a first spacer ring and a second spacer ring. Each of the first spacer ring and the second spacer ring have a flexible band. The flexible band has a bottom with a plurality of feet. The plurality of feet engage an outer surface of the process pipe such that the flexible band is spaced from the outer surface of the process pipe. An inner cladding has a body with a first end, a second end, and a pair of peripheral side edges. The first end of the inner cladding is supported by the first end spacer ring and the second end of the inner cladding is supported by the second end spacer ring. The inner cladding wraps around the process pipe such that the pair of peripheral side edges are adjacent each other and the inner cladding is spaced from the process pipe.

The proposed technology relates to a system (8) for preventing microbiological growth in a conduit conveying a liquid. The system (8) comprises a multi-layered pipe (10) constituting said conduit and having an inner layer (12) that covers the complete inside (16) of the pipe (10) and is formed of an electrically conductive polymer material. A liquid in the pipe (10) is in direct contact with the inner layer (12). The system further has a first electrical connector (18) and a second electrical connector (19) connecting to the inner layer (12) from outside the pipe (10), wherein the first electric connector (18) and the second electric connector (19) are spaced apart along the pipe (10). The system further has an electric power source (20) operationally connected to the first electrical connector (18) and the second electrical connector (19) and configured for supplying an electric current to the inner layer (12).

The proposed technology relates to a system (8) for preventing microbiological growth in a conduit conveying a liquid. The system (8) comprises a multi-layered pipe (10) constituting said conduit and having an inner layer (12) that covers the complete inside (16) of the pipe (10) and is formed of an electrically conductive polymer material. A liquid in the pipe (10) is in direct contact with the inner layer (12). The system further has a first electrical connector (18) and a second electrical connector (19) connecting to the inner layer (12) from outside the pipe (10), wherein the first electric connector (18) and the second electric connector (19) are spaced apart along the pipe (10). The system further has an electric power source (20) operationally connected to the first electrical connector (18) and the second electrical connector (19) and configured for supplying an electric current to the inner layer (12).

A processing system 100 includes a heat insulating pipe 12, a temperature measuring device 19, and a control device 20. The heat insulating pipe 12 has an inner pipe and an outer pipe. An airtight space is formed between the inner pipe and the outer pipe. A fluid having a temperature lower than that of an indoor space in which the heat insulating pipe 12 is placed is flown within the inner pipe. The temperature measuring device 19 measures a temperature of a surface of the heat insulating pipe 12. The control device 20 is controls a pressure within the airtight space by controlling an exhaust device 16 configured to exhaust a gas within the airtight space based on the temperature of the surface of the heat insulating pipe 12 and a dew-point temperature calculated from a humidity and the temperature of the indoor space.

The steel material according to the present invention contains, in mass %, C: 0.15 to 0.45%, Si: 0.10 to 1.0%, Mn: 0.10 to 0.8%, P: 0.050% or less, S: 0.010% or less, Al: 0.01 to 0.1%, N: 0.010% or less, Cr: 0.1 to 2.5%, Mo: 0.35 to 3.0%, Co: 0.05 to 2.0%, Ti: 0.003 to 0.040%, Nb: 0.003 to 0.050%, Cu: 0.01 to 0.50%, and Ni: 0.01 to 0.50%, and satisfies the following Formulae. A prior-austenite grain diameter of its microstructure is less than 5 m, and a block diameter of its microstructure is less than 2 m. The microstructure contains a total of 90% by volume or more of tempered martensite and tempered bainite.

C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15Co/6+0.70(1)

(3C+Mo+3Co)/(3Mn+Cr)1.0(2)