Abstract: A tubing hanger body made from Non-CRA steel coupled to production tubing made from CRA material. The coupling includes pin threads at the top end of the production tubing which are arranged to be screwed into box threads of the tubing hanger body. A seal sub having metal-to-metal and/or elastomeric seals engages the top end of the production tubing and protects the tubing hanger body from contact with production fluid flowing from the production tubing below to a Christmas tree tubing above. The invention includes a method of repairing of an existing tubing hanger body where its through bore has been damaged. This allows the through bore to be over machined and a CRA sleeve installed to replace tubing threads and body material.

Abstract: A composite reinforced line pipe is manufactured by aligning first and second pipe segments each having a composite reinforcement wrapped circumferentially about a core, attaching the line pipes at a cut-back portion of their exposed core, wrapping a joint tape circumferentially about the cut-back portion, wrapping a resin reinforcement tape circumferentially about the joint tape, and curing the joint tape and resin reinforcement tape.

Abstract: Glass modules for use in the assembly of equipment, installations and for pipe works, the surfaces of which are entirely or partially coated with a conductive coating, in particular from transparent conductive polymers for the purpose of reducing surface resistance, their use, as well as the equipment, installation and pipe works made therefrom.

Abstract: A molded nipple connection system for permanently molding a metal nipple within a plastic container that is not susceptible to expansion/contraction forces incurred by the plastic container. The inventive device includes a metal nipple having a threaded end or a cincture surrounded end, a lumen, an immersion end positioned within the plastic during molding, and a plurality of openings adjacent the immersion end. The plurality of openings allow the liquefied plastic during molding to project through the exterior surface of the metal nipple into the lumen of the metal nipple where it is joined with liquefied plastic within the lumen of the metal nipple. After hardening of the plastic, the mold is removed and the metal nipple is captured within the plastic container because of the plastic-securing loop created through the plurality of openings. The plurality of openings are preferably slots, however they may comprise various other well-known shapes.

Abstract: A hydraulic coupling employing a polymeric elastomeric sealing member to provide an excellent seal under pressure. The polymeric elastomeric seal additionally has high resistance to acids, alkalis, hydrocarbons, ketones, ethers, esters, alcohols and salt solutions. The sealing member has the elasticity to return to its normal physical condition after pressure is removed.

Abstract: A hydraulic coupling employing a polymeric elastomeric sealing member to provide an excellent seal under pressure. The polymeric elastomeric seal additionally has high resistance to acids, alkalis, hydrocarbons, ketones, ethers, esters, alcohols and salt solutions. The sealing member has the elasticity to return to its normal physical condition after pressure is removed.

Abstract: A structural member comprising a main body molded of synthetic resin, an insert portion molded from a engineering plastic having better functional properties at least in respect of strength than those of an ordinary synthetic resin and a metallic reinforcement ring entirely embedded in the structural member between the main body and the insert portion is disclosed. The foremost end part of another member is threadly engaged with a plurality of female threads around the inner surface of the insert portion or press fitted into the insert portion.

Abstract: The improved electrofusion joint and header for supplying hot water that perform satisfactorily at elevated temperatures as evidenced by high heat resistance, that exhibit good sealing property and that can be handled efficiently in mounting and various other operations have a crosslinked thermoplastic resin layer and at least one joining portion which comprises a non-crosslinked thermoplastic resin layer that is formed a as an integral part of said crosslinked thermoplastic resin layer in the area where it contacts a tubular member to be joined, and a heating electric wire provided either within or on the outer or inner surface of said non-crosslinked thermoplastic resin layer. Such electrofusion joint and header are applicable to any part of a piping system for supplying hot water and they will withstand use for a prolonged period.

Abstract: In a face seal fitting between two conduits, one conduit is provided with an annular groove in which a two-piece ring makes a sliding fit. The ring is coated with a diamond low friction coating which facilitates sliding of the ring in the groove. The ring assembly performs the function of a flange and is engaged by a threaded coupling nut. As the coupling nut is turned to engage a second coupling nut and draw the conduits together, the nut also engages the two-piece ring which slides in the groove thereby reducing torque.

Abstract: The flexible ball joint is provided with a continuous ring mounted inside a casing and supported by an inner spherical surface of one of the segments of the casing and by a cylindrical portion of an end piece element. The respective contacting sides of the ring are concentric with the juxtaposed spherical and cylindrical surfaces, so that the ring is able to be slidably guided by those surfaces in response to an absorbing shock without losing the contact with the surfaces.

Abstract: An aseptic pipe joint for food processing pipe fittings of the type including a pair of frustoconical ferrules having radially extending surfaces, a "C" shaped metallic ring positioned between the surfaces in abutting relation therewith, a resilient O-ring filling the "C" shaped ring to form an aseptic seal, a resilient seal ring positioned between the ferrule surfaces and spaced radially outwardly from the "C" shaped ring forming a hermetic zone between the seals and a passage in one of the ferrules connected to the hermetic zone for testing the aseptic seal.

Abstract: An abrasion resistant pipe bend or elbow for slurry pipelines is disclosed. The bend or elbow has a wall of enlarged thickness disposed in the exterior of the turn of the fluid flow, in the area where impingement of the interior wall of the elbow by solid particulate material is most likely to occur. The wall of enlarged thickness includes a plurality of spaced protrusions which form a plurality of indentations or pockets. Openings of the pockets are disposed in substantial alignment with the instantaneous trajectory of solid particulates transported in the slurry. The pockets become filled with captured solid particles when slurry is transported through the elbow. The particles act as a shield or buffer against further bombardment of the wall of the elbow by the particles. Leading edges of the protrusions optionally have a cladding of an abrasion resistant material, such as a hardfacing composition, and are disposed to have a favorable, usually large, impact angle with the solid particles.

Abstract: A coupling for fluidly connecting flexible tubing includes a rigid connector and an elastic retaining sleeve. The rigid connector has a main portion and a first and preferably second male end portions projecting therefrom with a fluid passage disposed within the male end portions and the main portion for fluid communication with the flexible tubing. The elastic sleeve member has a connector gripping section that circumferentially grips the main portion of the connector and a first and preferably second section for gripping the flexible tubing. The first and second sections are initially in a retracted position, folded-back over the connector gripping section and are movable to a second tubing-engaging position to grip the tubing. Preferably, handles are attached to the first and second gripping sections of the sleeve proximate their ends so that the sleeve may be gripped manually to facilitate movement of the first and second sections from the retracted position to the tubing-engaging position.

Abstract: The pipe coupling is of compression type and comprises a main body having externally threaded portions, a nut and at least one sleeve. The sleeve is formed with a ceramic coating layer on its entire surface.