Abstract: A duct to receive duct wrap is provided with a plurality of posts at different locations on and upstanding from the post to protrude through the duct wrap. Wrap retainers fit onto the post over the duct wrap securing the duct wrap on the duct.

Abstract: A cryogenic fluid system having a flexible conduit for conducting cryogenic materials and a method for fabricating such a flexible conduit is herein disclosed. The flexible conduit of the cryogenic fluid system generally includes a first tube and a second tube disposed about the first tube. The first and second tubes can be made from the same or different materials (including composites) as long as the material which makes up at least one of the first and second tubes is silicone rubber-impregnated glass cloth. The flexible conduit also generally includes a fluorocarbon polymer liner disposed against a first inner wall of the first tube, so that the first tube is positioned between the second tube and the fluorocarbon polymer liner. Some variations of the flexible conduit have an annulus between the first and second tubes which optionally is occupied, at least in part, by insulation.

Abstract: A reinforced, self-closing pipe insulation device for thermally insulating long lengths of pipe has an insulation layer/panel capable of being rolled around the length of pipe to bring a first and a second longitudinal edge adjacent each other to form a tubular sleeve or sleeve encircling the outside of the pipe. The insulation sleeve is reinforced proximate its outer surface by a plurality of reinforcement strips. Each reinforcement strip is a self-coiling spring which has a straight configuration and a coiled configuration. The spring bias of the reinforcement strips cause a strip to coil along its length and coil-face when the straight configuration is deformed. The self-coiling spring reinforcement strips are disposed in a spaced pattern in a layer affixed to an outer planar surface of the insulation layer with their coil-faces directed toward the pipe being insulated and their lengths parallel to the width of the insulation layer.

Abstract: A glass fiber duct liner, for lining sheet metal ducts in air conditioning, heating and ventilating systems, includes a flexible blanket of biosoluble glass fibers exhibiting a biodisolution rate in excess of 150 ng/cm2/hr. The glass fibers of the blanket are bonded together at their points of intersection by a colorless, formaldehyde-free, thermosetting, acrylic acid-based latex binder resin. A major surface of the blanket, adapted to be an interior surface of the blanket over which an airstream is to be conveyed by a duct system, is coated with a white acrylic latex water and dirt repellant coating that contains an antimicrobial agent.

Abstract: The present invention relates to pipe insulation made from a polyolefin thermal insulation foam which is made by extruding, using a physical blowing agent, a foam composition comprising 77-99% by weight of a metallocene polyethylene, 5-18% by weight of a flame extinguisher, 3-8% by weight of a cell stabilizer and 0-5% by weight of other usual foam additives. The invention further relates to a method for preparing a physically foamed polyolefin thermal insulation foam and to the foam prepared therewith. The foam is very flexible and as a result the pipe insulation is particularly suitable for the thermal insulation of pipes for split air conditioning, district heating, solar energy exploitation and the process industry, even when it regards thin and/or twisting pipes. The pipe insulation can be recycled well.

Abstract: An air handling unit (AHU) includes a frame structure and panels that are assembled to provide ducting for handling air. Each panel is rectangular with two sides and four edges. Each edge is integrally formed with the panel by extruding a perimeter of the panel. The extrusion has one flat edge that serves as a receiver for a cammed leg of a latch that is mounted in the same frame structure that retains the panel. While the latches are unengaged, the panel is inserted into the rectangular opening in the structure. The latches are then individually rotated 90 degrees such that the cammed leg pushes the panel further into the pocket, thus compressing a perimeter seal and eliminating air leakage.

Abstract: A conduit for the transport of cryogenic media, in particular a superconducting cable, includes at least two metal pipes arranged concentrically and spaced apart from one another, an insulation layer being situated in the annular gap between the metal pipes and the annular gap being evacuated. The exterior of the metal pipe (4) is separated at predetermined intervals and above each opening a pump connector (10) is welded vacuum-tight to the outer metal pipe (4).

Abstract: Disclosed is an insulative support member typically for insulating piping. The insulative support member provides a supportive point of attachment for a hanger to attach the insulated pipe to a ceiling. The support member can provide both insulative value and structural support whereby a hanger can attach to the piping insulation without crushing the insulation.

Abstract: The insulated pipe arrangement comprises at least two pipe bodies, each of which has a flexible inner fluid-guiding pipe, which is enclosed by an insulating layer made of elastomeric or thermoplastic foam, a protective film made of a thermoplastic, elastomer, or duromer of high-density being arranged around the insulating layer. The pipe bodies are bonded on opposing peripheral parts of their protective film by a layer of an adhesive which allows detachment of the adhesive bond without the protective film being damaged and which produces a renewed adhesive bond after detachment of the adhesive bond when the peripheral parts of the previous adhesive bond are brought into contact again.

Abstract: A removable/reusable insulating cover includes an insulating material, a flexible and puncture resistant coating, a flap which is an extension of the coating and a hinge which is an integral part of the coating. The system provides a flexible yet durable insulation cover, which may be removed and reused.

Abstract: A thermally insulating cover structure adapted for covering a hot pipe comprises a heat insulation layer (2), a filler layer (3) and a jacket (6), which is provided with drain openings (5). The filler layer comprises a material that is permeable to water. The drain openings are shielded against entry of water, while they allow drainage of water from the filler layer into the environment. This cover structure is in particular suited for outdoor pipelines, where moist conditions may arise. The invention also provides a pipeline and a method of providing a pipeline with a thermally insulating cover structure.

Abstract: A flexible duct construction and method of manufacture is provided in which the duct is formed from a continuously wound elongate member comprising a core of insulating material, a reinforcing wire element and a casing comprising a strip of substrate material extending around the core and the reinforcing element. In the preferred method of manufacture, adhesive is applied to one side of the strip of substrate, the casing has a tail part extending from a generally circular part which encapsulates the core and the reinforcing element, and the elongate encapsulated insulating member is wound helically so that the circular part of one winding overlies and adheres to the tail part of the previous winding.

Abstract: A hose includes a tube assembly surrounded by a textile reinforcement that is surrounded by a cover assembly. The tube assembly includes an inner non-foamed layer that is surrounded by a foamed layer that is surrounded by an outer non-foamed layer. The textile reinforcement surrounds the outer non-foamed layer of the tube assembly and preferably consists of a first spiral threading and a second mesh threading. The cover assembly includes an inner non-foamed layer that is surrounded by a foamed layer that is surrounded by an outer non-foamed layer. The adjacent relationship of the outer non-foamed layer of the tube assembly and the inner non-foamed layer of the cover assembly provide a substantial increase in adhesion between the two assemblies. Further, this configuration reduces the tendency for water seepage between the layer or plies that can cause bubbles and separation.

Abstract: The present invention relates to a method intended for heat insulation of a pipe (1), comprising the following successive stages of depositing, on the outer surface of the pipe moving longitudinally, a thickness (3) of an insulating material made of elastomer having an elastic type behavior, substantially without irreversible plastic deformation, forming at least one circumferential slot (4) in the thickness of the material substantially orthogonally to the axis (2) of the pipe, and coating the insulating material thickness with a sealed sheath. In a variant, the slot is machined in the thickness of the insulant. The invention further relates to a heat-insulated pipe.

Abstract: A thermally protected and corrosion protected structure, that has in combination a core substrate and a concentric composite laminate, wherein: (i) the core substrate has a length and extends at least substantially within and is surrounded by the laminate; and (ii) the laminate has a plurality of concentric layers. The concentric layers include: (a) an inner layer of a corrosion protective material substantially along and surrounding the length of the core substrate; (b) a layer of a first protective plastic coating surrounding the corrosion protective material; (c) a layer of a heat-resistive intumescent coating surrounding the first protective plastic coating; (d) a layer of a reinforcing mesh embedded in or on the intumescent coating; and (e) an outer layer of a second protective plastic coating.

Abstract: A sleeve for providing thermal insulation to elongated substrates is disclosed. The sleeve is formed from a composite sheet having a tough, resilient reinforcing layer to which are attached a metallic reflective layer on one side and a fibrous, non-woven insulative layer on the opposite side. The composite sheet is reverse folded with the reflective layer facing outwardly and the insulative layer facing inwardly. A seam is formed lengthwise along the sleeve in spaced relation to the reverse fold, thereby defining a central space for receiving the elongated substrates. The seam is formed by fusing the inwardly facing insulative layer on each side of the reverse fold together.

Abstract: The invention concerns the use of a material comprising at least a crosslinkable elastomer selected from the group consisting of butyl rubber, halobutyls and brominated isobutylene and para-methylstyrene copolymers, and at least a non-crosslinkable elastomer with low thermal conductivity for thermal insulation, in particular for pipes. The invention also concerns a pipe, and, in particular a submarine oil pipe for great depths, comprising at least a layer of said material.

Abstract: A heat shield provides thermal insulation and reduced noise transmission for under-the-hood vehicular engine components, such as exhaust manifolds. The structure is formed in three layers: an outer metal layer to provide structural integrity, a center insulation layer to isolate heat and dampen noise, and an inner metal layer directly adjacent the shielded component for reflecting heat back to the shielded component. As disclosed, the insulation layer is sandwiched between the two metal layers. The heat shield is formed in two integral mating halves to define a unitary structure containing grommets. The grommets incorporate capscrews rotatably secured in respective halves of the structure for attachment to mounting bosses on the component. Finally, the edges of the two metal layers of the heat shield are folded over to prevent injury to installers, and to reinforce the heat shield structure for enhancing its useful life under severe conditions of vibration and heat.

Abstract: An insulated pipeline comprises an inner pipe, and an outer poly sleeve co-axial with the inner pipe. The inner pipe and the outer poly sleeve are in spaced relationship to define an annulus. An insulating core within the annulus encases lengthwise the inner pipe, and comprises a plurality of pre-cured syntactic elements. A first binder fills interstices in the annulus. The pre-cured syntactic elements include microspheres and a second binder. Each of the pre-cured syntactic elements may also include macrospheres. The pre-cured syntactic elements are preferably extruded and cylindrically shaped. In addition, in one embodiment, the second binder is preferably more rigid than the first binder.

Abstract: A thermoformed PVC, modified PVC, CPVC, metal or coated metal cover, covering system and method is provided for covering assemblies of pipe and pipe insulation, hangers, support rods and mechanical assemblies wherein the assembly is biocide treated, covered by and completely enclosed by the cover, the cover is sealed in order to prevent bacteria growth within the cover while allowing a smooth outside surface for biocide application. The cover can be modified to facilitate the application of biocide after the assembly is covered by providing resealable openings in said cover.

Abstract: An air duct that comprises one or more air duct segments that comprises a polymeric cellular material, or foam. The ducts or segments may be part of an air duct system that comprises a primary air duct, at least one secondary air duct, and at least one branch duct. Each of the aforementioned ducts comprises a cellular thermoset polymeric material. Additionally, the present invention relates to an HVAC system that comprises an HVAC unit for thermally conditioning air, and a duct system comprising a polymeric cellular material, or foam that has an R value of at least 5, and a density of from about 1.5 pounds per cubic foot to about 4 pounds per cubic foot.

Abstract: A pair of composite refractory tiles for insulating fluid-cooled structural members of a metallurgical furnace of the type for re-heating metal billets and slabs. The refractory tiles are a composite of a cast refractory shell which extends radially from an outer surface of the tile inward, at selected portions, to an inner surface for contacting the furnace member. In portions of the refractory tile, where contact with the furnace member is not made, a ceramic fiber insulating blanket fills a hollow between the cast refractory shell and the furnace member. Incorporating the ceramic fiber insulating blanket into each tile decreases furnace heat loss as compared to solid cast refractory tiles of comparable thickness. Attachment assemblies, which contact the fluid-cooled structural members, have a plurality of spaced anchoring wires which extend into the cast refractory shell and maintain proper alignment of each tile with the furnace structural member.

Abstract: A double-layer pipe for fluidic transport of abrasive solids, includes a hardened inner pipe portion of steel, an outer pipe portion of weldable steel to surround the inner pipe portion, and terminal coupling collars made of weldable steel. Disposed between the inner pipe portion and the outer pipe portion is a heat-insulating layer which is made of a combustible, non-metallic material.

Abstract: An evacuated panel (2) is provided which enables the thermal insulation of a cylindrical body (1) having two substantially rectangular main faces, formed of a flexible envelope (4) made of one or more barrier sheets, and containing a discontinuous or porous, inorganic or polymeric filling material (3). The panel has a thickness such that the ratio between this thickness and the minimum bending radius of the lateral wall of the cylindrical body is small enough so as to enable the winding of the panel without compromising the integrity thereof, and a length such that it allows at least two windings around the body (1).

Abstract: A pipeline for moving effluents at seabed level, including an inner shell and at least one outer shell having an outer surface separated from the inner shell by an annular space for receiving an insulating layer, wherein the outer shell includes a set of mutually spaced flutings arrayed along at least a portion of the outer surface and each fluting has a bottom resting on a spacer element located around the inner shell.

Abstract: A fluid transport system including a fluid transfer assembly, an air dryer and a tube. The fluid transfer assembly includes a pipe for transporting a cold fluid and a vapor barrier surrounding the pipe. The air dryer removes moisture in the air. The tube is connected to the air dryer and the fluid transfer assembly. The tube transfers air from the air dryer to the fluid transfer assembly at a plurality of points along a length of the fluid transfer assembly.

Abstract: A padding is placed around an underground irrigation pipe which allows the irrigation pipe to flex and bend when the irrigation pipe is struck or compressed. The padding is preferably a synthetic polymer that substantially reverts back to its original size after the compressing force is removed and is not affected by the elements. The padding is used over the irrigation pipe in areas of heavy traffic over the pipe or areas where the pipe may be struck. The pipe can be inserted into apertures in the padding or slits can be made in the padding to allow insertion of the pipe into the apertures. These channels can be prefabricated or cut into the padding as needed.

Abstract: An insulated pipework system comprises an outer sleeve, an inner flow pipe and one or more evacuated volumes in the space therebetween defined by annular plugs of a setting polymeric composition such as epoxy resin or a syntactic foam, typically at regular intervals along the length of the pipeline. The epoxy resins (for example) are ideally of sufficient rigidity to allow effective transfer of longitudinal forces between the inner and outer pipes. Thus, the evacuated volumes will themselves be annular. Other plugs of different orientation (for example longitudinal) could be included to subdivide the evacuated volumes further. The plugs allow the space between the pipes to be partitioned so that air can be evacuated from the sections so formed to provide the vacuum that acts as the insulating layer. Also, the plugs replace the need for bulkheads in that the partitioning of the inter-pipe space provides the desired water-stopping means.

Abstract: An air handling system ductwork component comprising a tubular, foam interior layer integrally formed with a thin, non-metal outer layer. The combination interior and outer layers are characterized as providing requisite strength for use of the ductwork component within an air handling system without inclusion of a metal-based layer. In one preferred embodiment, the interior layer is a closed cell foam, and the outer layer is plastic, with the ductwork component being formed as part of a rotational molding process. The ductwork component can assume a wide variety of forms, such as a duct, pipe, elbow, boot, tee, plenum, reducer, register, wall stack, take-off, etc.

Abstract: A method is intended for the thermal insulation of a flexible pipe. The method includes a first step of depositing a thickness of extrudable and rigid insulating material on an outer surface of the pipe, with the pipe moving longitudinally. The insulating material is cooled over a substantially rectilinear part downstream from the deposition area. Then, at least one circumferential slot is formed in the thickness of the rigid insulating material so as to restore flexibility of the pipe coated with the rigid insulating material. The thus-formed pipe includes a flexible inner pipe, a layer of rigid insulating material surrounding the flexible pipe, and at least one circumferential slot cut in the layer of rigid insulating material to allow flex of the heated insulated pipe.

Abstract: A double-layer pipe for fluidic transport of abrasive solids, includes a hardened inner pipe portion of steel, an outer pipe portion of weldable steel to surround the inner pipe portion, and terminal coupling collars made of weldable steel. Disposed between the inner pipe portion and the outer pipe portion is a heat-insulating layer which is made of a combustible, non-metallic material.

Abstract: Pipes or pipelines insulated on their surface or surfaces are described. The pipes or pipelines may be for submerged service, below the surface of water. The insulation chosen may be an epoxy substantially free of phenolics and one or more of glass or ceramics. The coating may be an abrasion resistant coating. Such pipes or pipelines are generally intended for the transport of fluids, which can include natural gas, natural gas liquids, crude oil, refined products, chemicals, combinations thereof, and the like.

Abstract: A flame resistant insulation product comprises a fibrous mineral material that has been rotary fiberized, preferably a fibrous glass. The composition of the mineral material has a softening point of at least about 699° C. An insulated duct includes a tubular wall that defines a hollow interior for conducting a fluid, and a layer of the insulation product wrapped about the wall. The mineral material reduces the number of samples of the insulated duct failing the flame penetration test of a UL 181 Standard compared to the same insulated duct with a mineral material having a softening point of less than 699° C.

Abstract: An insulation system for shafts through which hot gases flow, especially exhaust gas shafts of gas turbines has an insulation layer (20, 40) as well as a flat cover (26, 39), which holds the insulation layer (20, 40) and covers it against the gas flow. The cover (26, 39) is guided by bearing rails (21, 41). In such an insulation system, the number of spacers (22, 23, 24; 47, 48, 49) by which the bearing rails (21, 41) are fastened to a shaft wall (25, 50) shall be minimized. Furthermore, the insulation system shall be able to be manufactured with a high degree of prefabrication in the workshop and with low assembly effort at the construction site. The bearing rails (21, 41) are fastened to the shaft wall (25, 50) with a fixed mount (31, 51) and at least one movable mount (32, 52).

Abstract: A semi-rigid cover for insulating exposed plumbing structures, such as above ground backflow devices, against freezing when exposed to subfreezing temperatures. The device includes an insulative bag and a removable outer cover that is placed over the insulative bag. The insulative bag and outer cover are closed on three sides and open on a fourth. The device also includes a plurality of securing structures, such as grommets, to facilitate securing the device to the plumbing structure with padlocks, combination locks, zip ties and the like. The device further includes a sealing structure, such as a strip of hook and loop fastener, placed along the open edge to facilitate sealing the device about the plumbing structure to minimize drafts into the interior of the device and to exclude pests. The outer cover is replaceable separately from the insulative bag to reduce replacement costs in case of damage or loss.

Abstract: A floor panel for use in an air handling unit that provides a thermal barrier to the passage of heat. The panel is reinforced internally so that it can support a heavy piece of air handling equipment inside the unit such as an air conditioner heat exchanger coil. The panel includes a reservoir for collecting moisture from the coil and rapidly exhausting the moisture from the unit.

Abstract: A panel for use in air conditioning duct for carrying air along an enclosed path of travel. The panel includes a rectangular shaped frame made of a material having a relatively high R value. The frame is closed by a top cover and a bottom cover so that a cavity is established within the panel. The cavity is filled with a curable material that sets inside the panel to bond the walls of the frame together and to bond the covers to the frame. A bulb seal having high insulation characteristics extending along the length of one edge of adjoining panels so that energy transmission is further inhibited.

Abstract: A method for inhibiting external corrosion on an insulated pipeline including a pipe insulation positioned outside and around the pipe and a coating material around the insulation by positioning a plurality of concentrated charges of alkaline material in the insulation material.

Abstract: The present invention relates to a method intended for heat insulation of a pipe (1), comprising the following successive stages of depositing, on the outer surface of the pipe moving longitudinally, a thickness (3) of an insulating material made of elastomer having an elastic type behaviour, substantially without irreversible plastic deformation, forming at least one circumferential slot (4) in the thickness of the material substantially orthogonally to the axis (2) of the pipe, and coating the insulating material thickness with a sealed sheath. In a variant, the slot is machined in the thickness of the insulant. The invention further relates to a heat-insulated pipe.

Abstract: A panel for use in air conditioning duct for carrying air along an enclosed path of travel. The panel includes a rectangular shaped frame made of a material having a relatively high R value. The frame is closed by a top cover and a bottom cover so that a cavity is established within the panel. The cavity is filled with a curable material that sets inside the panel to bond the walls of the frame together and to bond the covers to the frame. A bulb seal having high insulation characteristics extending along the length of one edge of adjoining panels so that energy transmission is further inhibited.

Abstract: A floor panel for use in an air handling unit that provides a thermal barrier to the passage of heat. The panel is reinforced internally so that it can support a heavy piece of air handling equipment inside the unit such as an air conditioner heat exchanger coil. The panel includes a reservoir for collecting moisture from the coil and rapidly exhausting the moisture from the unit.

Abstract: A flame resistant insulation product comprises a fibrous mineral material that has been rotary fiberized, preferably a fibrous glass. The composition of the mineral material has a softening point of at least about 699° C. An insulated duct includes a tubular wall that defines a hollow interior for conducting a fluid, and a layer of the insulation product wrapped about the wall. The mineral material reduces the number of samples of the insulated duct failing the flame penetration test of a UL 181 Standard compared to the same insulated duct with a mineral material having a softening point of less than 699° C.

Abstract: An insulation piece for joining with a similar piece to surround a pipe elbow of a larger diameter such as greater than 9 inches outside diameter is formed by cutting from a block of the insulation material.

Abstract: A laminate comprises first and second metal layers, and a metallic felt layer disposed between the metal layers and attached to each to provide vibrational damping and thermal insulation. In one embodiment, the layers are tubular in shape and form an automotive exhaust pipe. In another embodiment the layers are annular in shape and form a disk of a brake rotor. In another embodiment the laminate is a damping structure for a brake pad assembly, wherein the first metal layer may either be the backing plate of the brake pad assembly or be attached to the backing plate. The damping structure may include additional metallic felt and metal layers. Various modes of attachment of the metallic felt layer to the metal layers are disclosed. The metallic felt layer may be completely surrounded by metal.

Abstract: A pipe insulation jacket comprises two jacket members that can be joined to form a hollow cylinder. Both jacket members are made of a dimensionally stable, thermally insulating material. Both jacket members are provided with an elastic coating layer extending over the inner surface and over one of the radially extending end faces of the jacket members. The outer surfaces of the two jacket members are covered by a common tape linking the jacket members at one side in such a way that they can be spread apart at the other to such an extent that the insulation jacket can be radially moved onto the pipe to be insulated. The tape extends over the jacket member at the side where the two jacket members are spread apart, and its inner side is provided with an adhesive layer to interconnect the two jacket members once the pipe is enclosed.

Abstract: Water resistant fibrous air duct insulation products and methods for making such products. The products may include a duct board or a duct tube including a plurality of layers of resin-bonded fibrous mat. The duct board or tube is preferably rendered water-repellent at the air stream surface by incorporating a hydrophobic agent into the resin of at least one of the layers adjacent the air stream surface.

Abstract: The present invention is directed to ceramic fiber insulation and related products and methods. A coating that is capable of being brushed and/or sprayed lightly as a liquid onto vacuum-formed ceramic fiber insulation for use at high temperatures is also provided.

Abstract: An insulation assembly for a forced gas unit comprises a facing layer and a porous insulation layer joined together by an adhesive. The facing layer includes pressure-balancing and non-pressure-balancing regions. Perforations are formed in the facing layer after the facing layer and the insulation layer are joined together and after the adhesive is cured. The perforations allow gas to flow through the facing layer so as to adequately balance the static pressures acting on the exposed and non-exposed surfaces of the facing layer.

Abstract: A pipe insulation coupling for coupling adjacent facing ends of elongated cylindrical pipe insulation tubing encased around a fluid pipe includes an elongated body extending longitudinally between a first end and a second end. The elongated body includes a pair of C-shaped clam shell portion interconnected by a living hinge for pivotal movement between an open position for receiving the pipe and a closed position clamped around the pipe and insulation tubing. Each clam shell portion includes an outer tube wall and an inner tube extending longitudinally between the first and second ends and defining a channel therebetween for receiving the adjacent facing ends of the insulation tubing. A planar wall interconnects the outer tube wall and the inner tube wall midway between the ends to abut the adjacent ends of the insulation tubing.

Abstract: A protection device for protecting a cylindrical structure has a pair of sections. The pair of sections when assembled form a tube. Each of the sections has inclined opposing mating surfaces. The sections have interlocking structures to resist longitudinal and transverse movement of the two sections with respect to one another.