A foamed resin molded article (1) including: a foamed resin layer (30) comprising a first resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit and an aromatic vinyl monomer unit, and a blowing agent; and a non-foamed resin layer (50) covering the foamed resin layer (30), wherein: the non-foamed resin layer (50) comprises a second resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit, and an aromatic vinyl monomer unit; and the amount of the rubber component in the non-foamed resin layer (50), determined by pyrolysis-gas chromatography/mass spectrometry (PGC/MS), is 1% by mass or more and 30% by mass or less, based on the total mass of the second resin.

A foamed resin molded article (1) including: a foamed resin layer (30) comprising a first resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit and an aromatic vinyl monomer unit, and a blowing agent; and a non-foamed resin layer (50) covering the foamed resin layer (30), wherein: the non-foamed resin layer (50) comprises a second resin which is a copolymer including a rubber component, a vinyl cyanide monomer unit, and an aromatic vinyl monomer unit; and the amount of the rubber component in the non-foamed resin layer (50), determined by pyrolysis-gas chromatography/mass spectrometry (PGC/MS), is 1% by mass or more and 30% by mass or less, based on the total mass of the second resin.

A concentric, multi-layer laminated wrap for protection of plastic pipes including up to 60-minute fire endurance, low flame spread, low smoke, and toxic products of combustion. The laminated wrap can withstand temperatures up to 2000° F. for up to a period of 60 minutes. The concentric laminated wrap includes an inner support layer that provides strength, an intermediate fire protective coating layer that provides fire, heat, and high temperature protection, and an outer top coating layer that provides resistance to abrasion, impact, and environmental factors including water, salt water, hydrocarbons, chemicals, and gases. The protection to plastic pipes and pipe appliances is provided by the fire protective coating layer that is applied directly to the pipe or as a layer in the laminated wrap around the pipe. The present invention is disclosed for fire, heat, and high temperature protection of pipes, including linear pipes and pipe appliances such as flanges, couplings, valves, joints, tees, and bends.

Provided are a flexible insulated air duct and a modular flexible insulated air-duct system; the flexible insulated air duct includes an air-duct main body (1); the air-duct main body (1) includes an inner air-duct layer (5) and a heat-insulating layer (4) integrally formed on the inner air-duct layer (5); the inner air-duct layer (5) is arranged inside the heat-insulating layer (4), and the heat-insulating layer (4) is a rubber/plastic material. The modular flexible insulated air-duct system made by assembling a main air duct (7), a branched air duct (8), and a connecting air duct (9) may be rapidly connected on-site using a zip fastener to form an air-duct system having any configuration.

An insulating cover for assemblies including pipe elements, pipe couplings, elbows, Tees and valves also acts as a vapor barrier. Cover portions are joined along a seam which provides for a continuous seal between both the cover portions and the pipe elements which extend through channels defined in the cover. The seam includes a furrow into which sealant is forced when the cover portions are joined around the assembly. The furrow is defined by an asymmetric tongue and groove joint. Canals in the channels, in communication with the grooves, also receive the sealant to provide the continuous seal.

An insulating jacket for enclosing a pipe fitting includes an elbow housing configured to envelop and cover a pipe elbow and a pair of coupling housings each configured to envelop couplings mounted to the elbow. Each of the housings is made from a pair of housing halves which are made from a block of rigid insulating material. Each pair of housing halves can be mated together by interlocking tongue in groove connection elements formed on the housing halves. The rigid insulating material is soft enough to be carved by hand and resilient enough to be deform sufficiently to allow the housing halves to be mated over the pipe fitting.

An insulating jacket for enclosing a pipe fitting includes an elbow housing configured to envelop and cover a pipe elbow and a pair of coupling housings each configured to envelop couplings mounted to the elbow. Each of the housings is made from a pair of housing halves which are made from a block of rigid insulating material. Each pair of housing halves can be mated together by interlocking tongue in groove connection elements formed on the housing halves. The rigid insulating material is soft enough to be carved by hand and resilient enough to be deform sufficiently to allow the housing halves to be mated over the pipe fitting.

An exhaust elbow includes an inlet, an outlet, a curved gas guiding duct between the inlet and the outlet, and a plurality of thermally insulated stiffeners connected to an external surface of the curved gas guiding duct, each of the stiffeners including a metallic component and thermal insulation adjacent to at least a portion of a surface of the metallic element.

The present disclosure provides insulated components that include corrugated regions, which corrugated regions may reside on inner tubes, outer tubes, or both. The present disclosure also provides insulated components that may achieve straight, curved, or other variable geometries.

The present disclosure provides insulated components that include corrugated regions, which corrugated regions may reside on inner tubes, outer tubes, or both. The present disclosure also provides insulated components that may achieve straight, curved, or other variable geometries.