Abstract: A pressure casing has a plurality of casing shells (10a, b) which can be connected in a pressure-tight manner in a parting plane (11) by a flange (13). The casing shells (10a, b) are pressed together with sealing effect in the parting plane (11) in the region of the flange (13) by at least one threaded bolt (19; 19a-d) which extends through the flange (13) perpendicularly to the parting plane (11). A reduced thermal loading of the threaded bolts (19; 19a-d) of the flanged joint is achieved by the at least one threaded bolt (19; 19a-d) being exposed over a part of its length towards the inner side of the casing (10).

Abstract: The invention is directed at joint assembly which includes a first part and a second part to be assembled together. The first and second part are secured together via a set of fasteners and a set of attachment portions. The set of attachment portions cooperate with one of the first or second parts and receive the set of fasteners.

Abstract: An anchor valve for security is disclosed. The anchor valve includes a check valve with a flapper for preventing a contaminant from entering the fluid supply system. Contaminants that are outboard of the anchor valve are unable to pass by and are expelled when the fluid supply valve is opened. The anchor valve may include an access cover for maintenance and inspection of the flapper and the check valve.

Abstract: An apparatus for sealing an open end of a pipe includes a clamp for frictionally being secured to the exterior of the pipe, a sealing plate for covering the open end of the pipe and being connectable to the clamp, and an urging mechanism for urging the sealing plate towards the clamp and for forming a seal between the sealing plate and the open end of the pipe. In one aspect, the clamp comprises an annular body formed by at least two sections that are radially tightened over the pipe exterior. In another aspect, the clamp comprises cooperating annular bodies, one capable of radially narrowing the other for frictionally engaging the pipe outer surface. In another aspect the method provides a method of sealing an end of a pipe. According to the invention, once the open end is sealed, the interior of the pipe may be pressurized, for example for testing the integrity thereof.

Abstract: A gasket and seat system for sealing a joint is disclosed. The gasket comprises, for example, an inner portion with a wall facing an interior of the coupling and an outer portion, which extends axially forming radial end walls. The inner portion of the gasket is formed with an angled wall, making the inner portion expand inwards, which angled wall interacts with a matching angled wall of the seat, such that the joint has provisions for increasing the sealing ability in cases with increased pressure in the coupling. The gasket may further have the wall facing the interior being adapted to be flush with an interior surface when mounted in the seat and may also have provisions for heat expansion and elevated pressures, in order to remain flush with the coupling at elevated temperatures and in order to ensure sealing at elevated pressures.

Abstract: A hydraulic tube assembly for connecting two hydraulic components in a hydraulic system is provided. The hydraulic tube assembly may include a first hydraulic component, a second hydraulic component, a tube subassembly, and at least one port connection subassembly. The tube subassembly may include a tube having two ends, a first packing box, and a second packing box. The port connection subassembly may have two ends, with a first end coupled to the tube subassembly and a second end coupled to a hydraulic component. The port connection subassembly may include a packing box flange, at least one tension rod, at least one fluid seal, and a connecting cylinder flange.

Abstract: A tank or bulkhead connection allows attaching a device to a tank without welding or requiring internal tank or other side of bulkhead access. Two flange halves can be passed through a pre-drilled hole pattern to allow an outer flange and a gasket to be fastened to the inner halves, thus clamping the flanges to the tank/bulkhead. This allows the tank connection to be installed without welding and avoids total fluid draining and attendant environmental and safety considerations.

Abstract: A pump suction line assembly includes a sump including a wall formed with a bore and a seat, a tube including an inlet, an outlet, a length connecting the outlet and inlet, and a flange contacting the seat, a housing, a seal fitted in the bore and contacting the flange and the housing, and fasteners that compress the seal, secure the tube to the wall, and secure the sump to the housing.

Abstract: A pipe joint includes a first pipe that includes a first flange and a second pipe that includes a second flange. A first sleeve is installed within the first pipe and a second sleeve is installed within the second pipe. Further, an annular ring is positioned between the flange of the first pipe and the flange of the second pipe. The annular ring includes a first hub that extends into the first pipe and a second hub that extends into the second pipe. Moreover, a first complementary engagement structure is formed between the first sleeve and the first hub of the annular ring. The first complementary engagement structure provides a first seal interface within the pipe joint. A second complementary engagement structure is formed between the second sleeve and the second hub of the annular ring. The second complementary engagement structure provides a second seal interface within the pipe joint.

Abstract: A coupling structure for an absorption refrigeration circuit includes a gasket held between two coupling members. The gasket has a protruding part that elastically deforms when clamped between adjoining faces of the two coupling members.

Abstract: An apparatus for sealing an open end of a pipe includes a clamp for frictionally being secured to the exterior of the pipe, a sealing plate for covering the open end of the pipe and being connectable to the clamp, and an urging mechanism for urging the sealing plate towards the clamp and for forming a seal between the sealing plate and the open end of the pipe. In one aspect, the clamp comprises an annular body formed by at least two sections that are radially tightened over the pipe exterior. In another aspect, the clamp comprises cooperating annular bodies, one capable of radially narrowing the other for frictionally engaging the pipe outer surface. In another aspect the method provides a method of sealing an end of a pipe. According to the invention, once the open end is sealed, the interior of the pipe may be pressurized, for example for testing the integrity thereof.

Abstract: A change-out flange suited for use at an existing head casing of an oil or gas production well. The change-out flange is devised to replace standard hammer caps atop a well casing. By the present invention, with comparative ease a variety of wellhead equipment can be removably and interchangeably secured to the wellhead using an existing casing bowl or spool. The change-out flange has a casing hub that can be screwed unto a known casing bowl, and an integral connection flange provided with a plurality of connection holes arrayed in a manner consistent with the connection hole arrays of an assortment of conventional wellhead devices such as valves. A variety of well head devices thus can be more readily removed from, and securely replaced upon, the change-out flange. Lockdown pins are insertable into the change-out flange in a manner which secures the tubing hanger in place within the casing bowl.

Abstract: A wafer-shaped hollow fiber module adapted for in-line use in a piping system. The piping system may include two standard bolted flange connections, and at least one wafer-shaped hollow fiber module sealed between the two standard bolted flange connections. The wafer shaped hollow fiber module includes: a cylindrical housing having an open end and a closed end having a first sealing surface and an inlet port; at least one side port through the cylindrical housing; an end cap united to the open end having a second sealing surface and an outlet port.

Abstract: To provide a connecting structure of a double tube and an assembling or disassembling method of the double tube capable of disassembling or repairing an inner tube without cutting an outer tube. A connecting structure (10A) includes an outer tube (11) and an inner tube (12). The outer tube (11) is provided at a location corresponding to a connection flange portion (13) of the inner tube (12) with an outer tube short cylinder (15) including openings (14) each having a lid (14a). The outer tube short cylinder (15) is provided at respective ends with outer tube connection flange portions (16A and 16B). There are provided push-up bolts (21) capable of adjusting gaps respectively between an outer tube connection flange portions (17A-1 and 17A-2) which are opposed to each other, and between an outer tube connection flange portions (17B-1 and 17B-2).

Abstract: The present invention relates to a pressure vessel (1) for a high pressure press comprising at least a first sub-cylinder (4) and a second sub-cylinder (6), which are axially connected to form a cylinder body (2) for enclosing a high pressure medium, and a sealing arrangement arranged at the inner wall of the cylinder body for sealing the joint (3) between the first and the second sub-cylinder (4, 6) against leakage of the pressure medium. The sealing arrangement is comprising a ring shaped sealing band (18), a first circumferential protruding flange (30), which is arranged on the inner wall of the first sub-cylinder and which axially extends from the joint (3) and away from the second sub-cylinder (6), and a second circumferential protruding flange (32), which is arranged on the inner wall of the second sub cylinder (6) and which axially extends from the joint (3) and away from the first sub-cylinder (4).

Abstract: A coupling for securing pipe elements together in end-to-end relation is disclosed. The coupling has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segments. The gripping bodies are arranged opposite to each other. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping bodies radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping bodies engage and retain the pipe elements.

Abstract: A flange connection for connecting e.g. two sections of a tube or pipe comprises two flanges and a sealing ring inserted into an annular sealing space defined by radial faces and axially extending peripheral walls between the flanges. The sealing ring has an annular main body and an outer periphery with a cross-sectional shape that has legs extending outwardly from the main body. These legs, in a condition prior to application of sealing pressure, are inclined away from each other and have rounded outer ends that abut both the radial faces and the peripheral walls defining the annular sealing space. The legs, in a condition where the flanges are forced against each other, are axially compressed and upset at least in a radial direction by plastic flow of material on the outer ends in sealing engagement with the axially extending peripheral walls.

Abstract: A metal gasket includes an outer ring that is formed in a substantially C-shaped cross-section having an opening in a circumferential direction and an inner ring that is disposed inside the outer ring, wherein the inner ring is configured in a polygonal shape of a cross section, and a pair of corner portions opposing to each other in the inner ring are disposed on inner circumferential faces on the both sides of the opening in the outer ring.

Abstract: Pipe ends having radial flanges may be easily attached by an arcuate snap coupler having a channel for receiving portions of spaced face to face flanges on respective pipe end portions to be connected. The flanges may be formed directly on the pipe end portions, or may be formed by coupler body pieces attached to the pipe end portions. The arcuate snap coupler includes an open channel portion having two parallel side walls spaced apart a distance equal to the maximum desired distance over the face to face flanges when the two pipe end portions are joined together, a first hinge portion for rotatable attachment to a first fastener bolt extending between the flanges, and a second hinge portion for attachment to a second fastener bolt extending between the flanges after rotation of the coupler to receive the flange portions in the channel.

Abstract: A valve comprises a cup-shaped element presenting an outer surface on which a driver element is mountable and, inserted in said cup-shaped element, a core comprising at least one seal element arranged to block a first fluid passage provided in a bush, said core being movable within said cup-shaped element against the action of an elastic element between a first position in which said seal element rests on said bush such as to close its first passage and a second position in which said seal element is detached from said bush such as to open its first passage, said bush being associated with a closure element for the cup shaped element, the closure element presenting, for its fixing to the cup-shaped element, means cooperating with an inner surface of said cup-shaped element.

Abstract: A flange of a first pipe and a flange of a second pipe are connected via the flanges. An annular seal groove is formed in the flange surface of the flange. A sealing liquid is poured and placed in the seal groove from a sealing liquid pouring section via a pouring passage. The sealing liquid placed in the seal groove forms a liquid seal structure to improve sealing ability. Further, the sealing liquid is placed also in a discharge passage and a discharge pipe. When gas in the pipes enters the seal groove, the gas can be discharged from a discharge device and detected by a gas sensor to enable the user to take safety measures.

Abstract: A clamp adapter assembly for connecting an instrument to a pressure vessel. The clamp adapter assembly allows an operator to convert a bolt connection base known in the art into a base suitable for utilizing a clamped connection similarly known in the art. The connection assembly includes a bottom plate, at least one fastener to fasten the bottom plate to a base, a top retaining plate, and a clamp. The peripheral portions of the bottom plate and top retaining plate may be beveled in order to be received within a tri-clamp. The top retaining plate may include two sections that overlappingly engage one another.

Abstract: A wafer-shaped hollow fiber module adapted for in-line use in a piping system. The piping system may include two standard bolted flange connections, and at least one wafer-shaped hollow fiber module sealed between the two standard bolted flange connections. The wafer shaped hollow fiber module includes: a cylindrical housing having an open end and a closed end having a first sealing surface and an inlet port; at least one side port through the cylindrical housing; an end cap united to the open end having a second sealing surface and an outlet port.

Abstract: A flanged member (1), intended to be included as a component in a flanged joint, for installation in a pressure equipment device, and having a first flanged end (3) having a first end surface (10) intended to be assembled together with another end surface (4) of a flanged end (11) on another, second flanged member (2) constituting a second component in the flanged joint. The first end surface is slightly concave in the radial direction over at least a part of the extension thereof in the radial direction.

Abstract: A joint for connecting pipe sections is provided in which a portion of the joint includes a first pipe section, a first reducer fitting section, a first flange attached to the first pipe section and having holes for receiving fasteners, and a fluid conduit (such as a pipe sleeve) positioned inside at least a portion of the first pipe section and the first reducer fitting, wherein the fluid conduit forms an annular space defined by the outside surface of the fluid conduit wall and the inner walls of the first pipe section and the first reducer fitting. The annular space separates the heat-sensitive flange, a flange gasket, and the flange fasteners from high-temperature fluids flowing in the fluid conduit, thereby allowing for the use of lower rated and less expensive components than would otherwise be required in a direct heat contacting arrangement.

Abstract: This invention describes a flanged connection or attachment joint between two coaxial, cylindrically-shaped members having different thermal coefficients of expansion, the connection/attachment being suitable for use in high temperature fluid transport.

Abstract: A flexible pipe comprising a flexible cylindrical tubular pipe body connected at each of its ends to a rigid connector end fitting in the form of a sleeve. The wall of the pipe body is mechanically reinforced by at least one traction layer of filaments of small thickness, presenting high traction strength, that are wound helically about the longitudinal axis of the pipe. The traction layer is composed of an array of uninterrupted filaments interconnecting the two end fittings alternately in one direction and then in the other direction, while being fastened on the end fittings.

Abstract: Each of ridges 7 on respective opposite side surfaces of a gasket 4 has a trapezoidal cross sectional shape defined by an outer tapered face 7a providing an outer peripheral surface, an inner tapered face 7b providing an inner peripheral surface and a flat face 7c providing a top end surface. The hardness of the gasket 4, the angle between the tapered faces 7a, 7b of the ridge 7, the height of the ridge 7 and the area of the flat top end face 7c of the ridge are so determined that the value of thrust for tightening up the coupling is between a predetermined minimum value and a predetermined maximum value.

Abstract: A fluid conduit coupling for a turbofan engine wherein the engine has a gas path defined by inner and outer duct walls and the exterior surface of the outer duct wall is readily accessible for visual inspection. In one example, a first fluid line extends across the gas path between the inner and outer duct walls and a second fluid line is connected to the first fluid line at the level of the outer duct wall. The first fluid line may include a female coupling member and the second fluid member may include a mating male coupling member. An annular sealing member is associated with the first and second couplings and a leak path is defined between the annular sealing member and the exterior surface of the outer duct wall, whereby fluid may be detected by visual inspection of the outer duct wall if a leak should occur at the annular sealing member.

Abstract: A connection structure includes a thin wall stainless steel pipe with a swelling portion, a sandwiching portion forming an inclined pressing surface capable of pressing an inclined surface of the swelling portion, a joint spacer forming a first retention portion pinching a first gasket with respect to the swelling portion as well as having a fitting portion fitted to an outer periphery of an end portion of the thin wall stainless steel pipe, and forming a gasket receiving portion in an outer peripheral side thereof, and a joint having a second retention portion sandwiching and pressing a second gasket to an inner peripheral side facing the gasket receiving portion.

Abstract: A seal assembly for a fluid coupling includes: (a) a generally planar, substantially rigid seal retainer with opposed first and second faces, having an annular first groove formed in the first face; (b) a first resilient seal disposed in the first groove; and (c) an annular first backup ring positioned radially outboard of the first resilient seal and secured to the first resilient seal, wherein the first backup ring is substantially harder than the first resilient seal.

Abstract: A thin flange, for use with a vacuum system, includes a member having a diameter and a thickness. The member has a first face having a first sealing surface. The member has a second face opposed and substantially parallel to the first face. The second face has a second sealing surface. The thickness of the member is less than previously attained. In some designs, the thickness of the member is less than 0.28 inches.

Abstract: A connection structure includes a thin wall stainless steel pipe in which a swelling portion, a sandwiching portion forming an inclined pressing surface capable of pressing one inclined surface of the swelling portion, a joint spacer forming a first retention portion pinching a first gasket with respect to the swelling portion as well as having a fitting portion fitted to an outer periphery of the end portion of the thin wall stainless steel pipe, and forming a gasket receiving portion in an outer peripheral side thereof, a joint having a second retention portion sandwiching and pressing a second gasket to an inner peripheral side facing the gasket receiving portion.

Abstract: A coupling for securing pipe elements together in end-to-end relation has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segments. The gripping bodies are arranged opposite to each other. The segments have angularly oriented reaction surfaces on the connection members. The gripping bodies have angularly oriented contact surfaces which interface with the reaction surfaces. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping bodies radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping bodies engage and retain the pipe elements.

Abstract: A wafer-shaped hollow fiber module adapted for in-line use in a piping system. The piping system may include two standard bolted flange connections, and at least one wafer-shaped hollow fiber module sealed between the two standard bolted flange connections. The wafer shaped hollow fiber module includes: a cylindrical housing having an open end and a closed end having a first sealing surface and an inlet port; at least one side port through the cylindrical housing; an end cap united to the open end having a second sealing surface and an outlet port.

Abstract: A pipe joint and can include a first pipe having a flange and a second pipe having a flange. A first sleeve can be installed within the first pipe and a second sleeve can be installed within the second pipe. Moreover, an annular ring can be disposed between the flange of the first pipe and the flange of the second pipe. The annular ring is configured to engage the first sleeve and the second sleeve and create a sealing engagement between the annular ring, the first sleeve and the second sleeve when a compressive force is applied to the first sleeve, the second sleeve, or a combination thereof along a longitudinal axis of the pipe assembly.

Abstract: An air conditioner system fitting is disclosed including a first seal portion with a metal material adapted to provide a primary scat, and a second seal portion attached to a free edge of said first seal portion and adapted to provide a secondary seal, wherein the fitting militates against leakage during operation of the air conditioning system.

Abstract: Each of ridges 7 on respective opposite side surfaces of a gasket 4 has a trapezoidal cross sectional shape defined by an outer tapered face 7a providing an outer peripheral surface, an inner tapered face 7b providing an inner peripheral surface and a flat face 7c providing a top end surface. The hardness of the gasket 4, the angle between the tapered faces 7a, 7b of the ridge 7, the height of the ridge 7 and the area of the flat top end face 7c of the ridge are so determined that the value of thrust for tightening up the coupling is between a predetermined minimum value and a predetermined maximum value.

Abstract: A multi-pressure flange is disclosed that includes a first set of fasteners comprising four fasteners in a first rectangular pattern for attachment in a first pressure rating and a second set of fasteners comprising four fasteners in a second rectangular pattern in which the first rectangular pattern is perpendicular to the second rectangular pattern. The second set of fasteners is selectively combinable with the first set of fasteners for attachment in a higher second pressure rating. The flange may include a recess to receive sealing component and a receptacle configured to receive a pipe fitting. Systems and methods including the multi-pressure flange are also disclosed.

Abstract: A connector spool system for connecting a first component and a second component of an industrial compression system includes a connector spool having a substantially cylindrical shape. The spool includes an axial end and a flange at the axial end, the flange defining a radial surface for positioning proximate the first component. A spacer is positioned between the flange of the spool and the first component, the spacer including radial surfaces for providing uniform compressive force transmission between the spool and the first component.

Abstract: An emergency redundant mounting flange is provided for incorporation into an oil-well blow-out-preventer (BOP), enabling rapid, tight-fitting attachment of an oil containment cap over a BOP outflow port in an emergency. This flange extends radially outward from the protected port, and includes an annular region with a connection feature, such as a ring of bolt-holes, permitting cap attachment. The cap, also provided, is a barrel-shaped diameter-reduction pipe which can be connected onto the emergency mounting flange at its bottom end, and onto a standard riser pipe at its top end, thus containing or stopping the flow of oil. After installation, the cap fully encloses the protected port, while creating a tight seal with the emergency mounting flange. Extension of these methods to bell-and-spigot plumbing fixtures, including reinforced concrete pipe, is also provided.

Abstract: A security splicing system of aligned pipes against an expansion and/or contraction thereof due to variations in temperatures, has a flange unit providing a stability and watertightness of a splice, and including a double flange with two identical fastening elements gripping an outer face of an end area of two previously spliced pipes with a watertight connecting flange, so that an accidental displacement of the watertight connecting flange is prevented in an event that dimensions of the end area of the pipes vary due to an expansion or contraction.

Abstract: A fitting for use with metal tubing in a jacket, the fitting including: an adapter, the adapter having a tubular member defining a longitudinal passage having a longitudinal axis for fluid flow; a body for receiving the tubing, the body positioned opposite the adapter and aligned with the longitudinal axis; a sealing member positioned between the adapter and the body; a retainer positioned external to the sealing member, the retainer receiving the adapter and receiving the body; a first flange located near the adapter and a second flange located near the body; and a fastener for drawing the first flange and second flange towards each other.

Abstract: A change-out flange suited for use at an existing head casing of an oil or gas production well. The change-out flange is devised to replace standard hammer caps atop a well casing. By the present invention, with comparative ease a variety of wellhead equipment can be removably and interchangeably secured to the wellhead using an existing casing bowl or spool. The change-out flange has a casing hub that can be screwed unto a known casing bowl, and an integral connection flange provided with a plurality of connection holes arrayed in a manner consistent with the connection hole arrays of an assortment of conventional wellhead devices such as valves. A variety of well head devices thus can be more readily removed from, and securely replaced upon, the change-out flange. Lockdown pins are insertable into the change-out flange in a manner which secures the tubing hanger in place within the casing bowl.

Abstract: Migration of air through a flanged connection into piping containing a gas under negative pressure is prevented by disposing concentric inner and outer gaskets between the flange faces, so as to form an annular chamber into which a blanketing gas is introduced at a pressure higher than atmospheric. Air tending to migrate through the outer gasket is blocked by the higher-pressure blanketing gas in the annular chamber. The blanketing gas pressure is maintained at a level higher than atmospheric notwithstanding any fugitive emissions through the outer gasket. The annular chambers of multiple flanged connections may be interconnected to blanket multiple flanged connections using a single source of blanketing gas. The blanketing gas may be the same type as the gas under negative pressure. In sour service applications, an inert blanketing gas may be used to prevent leakage of sour gas to atmosphere through flanged connections.

Abstract: Sealing systems for high pressure applications that provide electrical isolation between joined elements as well as enhanced resistance to leakage of media during a fire. High pressure sealing is accomplished using a metallic core to which an electrically isolating material is bonded on either or both sides. Sealing is achieved through a dielectric sealing element, such as a spring-loaded polytetrafluoroethylene (PTFE) ring. Flanges of the joint may be bolted together with the seal interposed therebetween, and the flanges bolted together. In the event of a fire, heat may be generated that is at a high enough temperature to burn away the isolating material and PTFE ring. Systems of various embodiments provide a metal core backup seal and a compression limiter, which, respectively, prevent the media from leaking from the joint and maintain bolt load at the flanges.

Abstract: An exhaust-gas muffler (1) has a housing (2) through which at least one sleeve (11) projects. At one end, the sleeve (11) has an attachment opening (10) and at the opposite-lying end has an access opening (14). To avoid a contamination of the sleeve (11) during operation, a plug (15, 25, 35, 40, 45, 55) of a pressed metal wire is arranged in the access opening (14).

Abstract: A coupling for securing pipe elements together in end-to-end relation has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segments. The gripping bodies are arranged opposite to each other. The segments have angularly oriented reaction surfaces on the connection members. The gripping bodies have angularly oriented contact surfaces which interface with the reaction surfaces. When the segments are drawn toward each other by the connection members, interaction between the reaction surfaces and the contact surfaces forces the gripping bodies radially inwardly. Inwardly facing arcuate surfaces on the segments and the gripping bodies engage and retain the pipe elements.

Abstract: A split ring restraint device having dual pipe size capability for securing the connection between adjacent pipes in water piping systems to prevent leakage or failure of the pipe connection. The restraint device comprises an interlocking, stepped joining interface that can be assembled in one orientation to fit a pipe having a first outside diameter and assembled in another orientation to fit a pipe having a second outside diameter. The restraint device can be used without modification on pipes having different outside diameters. The restraint device can be installed more rapidly than current state-of-the art split ring restraint devices.

Abstract: A spherical flange assembly is disclosed. The spherical flange assembly comprises a seat member, a heel member, a seal gland and at least one nut and bold assembly. The seat member includes a concave portion. The heel member includes a convex portion and a seal gland opening. The seal gland is disposed within the seal gland opening.