Abstract: A fitting component for receiving a tube is provided. The tube has a tube end inserted through a ferrule, the portion of the tube end extending beyond the ferrule being called a pilot. The fitting component comprises a body including a cavity for receiving the tube end and the ferrule. The cavity is defined by an inner lateral wall and opens on an extremity of the body. The cavity includes a pilot receiving section and a channel connecting the cavity to another portion of the body. A radial annular flange is located at the interface of the pilot receiving section with the channel. The flange has an annular sealing lip protruding towards the cavity. The sealing lip is for forming a seal with a radial surface of the pilot, advantageously reducing dead volumes within the fitting component when in use.

Abstract: A compression pipe fitting is provided. The fitting comprises a body defining one or more sockets for receiving an end of a pipe, a clamping nut and a grip ring. The socket is encircled by a threaded face, and is internally adapted to receive a compressible O-ring. The nut can be screwed onto the threaded face of the socket and has an internal tapered surface while the grip ring has a complimentally tapered surface which, when the nut is tightened onto the threaded face, bears upon the grip ring compressing it against the pipe and compressing the o-ring located within the socket.

Abstract: A wet disconnect system with post disconnection pressure integrity includes a bridge tube. One or more seals on the bridge tube that seal the bridge tube to one or more conductors passing through the bridge tube. A defeatable seal/anchor at the bridge tube sealing an outside surface of the bridge tube to an inside surface of a separate structure. The defeatable seal/anchor being defeatable upon application of an axial load above a threshold.

Abstract: A fitting element (100), in particular for an HPLC application (10), is configured for providing a fluidic coupling of a tubing (102) to a fluidic device (103). The fitting element (100) comprises a gripping piece (108) to exert—upon coupling of the tubing (102) to the fluidic device (103)—a grip force (G) between the fitting element (100) and the tubing (102). The gripping piece (108) comprises a hydraulic element (170) configured to transform an axial force (S) into a hydraulic pressure (P) within the hydraulic element (170). The hydraulic pressure (P) in the hydraulic element (170) causes the grip force (G).

Abstract: A separation prevention device for a pipe joint has disengagement prevention members and a press member. The disengagement prevention members are disposed at a plurality of locations in a circumferential direction of the pipe, on an inner peripheral surface of an engaging tool or of a receiving opening itself and which are formed with claws. The press member presses the disengagement prevention member radially inward of the pipe and which engages the claw with the outer peripheral surface of an inserting opening. The claw of the disengagement prevention member and the claw of the disengagement prevention member which is adjacent to the former disengagement prevention member in the circumferential direction of the pipe are arranged so as to overlap on each other in the axial direction of the pipe in a state where the claws are engaged with the outer peripheral surface of the inserting opening.

Abstract: A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition.

Abstract: The seal made between two surfaces is enhanced by forming a coating (22), such as a self-assembled monolayer of a functionalized fluorinated macromolecule, on one or both of the surfaces.

Abstract: A fitting connection for a capillary has a sealing bushing, a compression bushing, and a backing bushing. The backing bushing has a bore for receiving the sealing bushing and the compression bushing into the backing bushing, and the sealing bushing and the compression bushing are each provided with a central bore for feeding through a capillary tube. The bore of the backing bushing has a partly slightly conical bore end which compacts the sealing bushing such that the bore of the sealing bushing exerts a radial surface pressure onto the external wall of the capillary.

Abstract: A tube fitting for sealing an end of a tube uses a notch formed in the exterior surface of the tube as a sealing seat. An internally threaded body is configured to receive an externally threaded end of a nut, while the body and the nut are mounted in a surrounding relationship to the tube end. A ferrule mounted between the nut and the tube is forced to plastically deform and move into the notch to thereby seal the tube end.

Abstract: A separation prevention device for a pipe joint has disengagement prevention members and a press member. The disengagement prevention members are disposed at a plurality of locations in a circumferential direction of the pipe, on an inner peripheral surface of an engaging tool or of a receiving opening itself and which are formed with claws. The press member presses the disengagement prevention member radially inward of the pipe and which engages the claw with the outer peripheral surface of an inserting opening. The claw of the disengagement prevention member and the claw of the disengagement prevention member which is adjacent to the former disengagement prevention member in the circumferential direction of the pipe are arranged so as to overlap on each other in the axial direction of the pipe in a state where the claws are engaged with the outer peripheral surface of the inserting opening.

Abstract: A connector connects the ends of two fluid lines, it is useful for connecting and sealing the ends of refrigerant lines in an automotive air conditioner. A resilient seal is disposed about the end of a fluid line within each end of the passageway and a combination slotted ferrule and sealing ring member formed with a sealing ring portion and a ferrule portion is captured between the seal and a compression nut treaded onto the end of the body. When the nut is tightened onto the end, it causes the ferrule portion to deform and collapse inwardly to grasp and hold the fluid line securely in place and simultaneously drives the sealing ring portion against the seal to compress the seal, which expands to form a fluid-tight seal around the end of the fluid line.

Abstract: A duplex pipe fitting includes a fitting main body 1 and a pair of coupling members 2 which are threaded to both ends of the fitting main body 1. The coupling members 2 are threaded to the fitting main body 1, so that two pipes P are connected to each other with the fitting main body 1. Each coupling member 2 includes a holding portion 24 including a holding surface consisting of a pair of or a plurality of pairs of planes facing each other so that it can be held with a general fastening tool. When a rotational torque for tightening the coupling member 2 to the fitting main body 1 reaches a value indicating the completion of fastening, at least a part of the holding portion including the holding surface is separated and the pipe connecting is complete.

Abstract: Fittings are provided for use with different types of tubing. One such fitting includes a gripping member having a sharp tube indenting edge that provides a seal between the tube gripping member and the tube. Another such fitting includes a tube gripping member having a body indenting edge that provides a seal between the tube gripping member and a fitting body.

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 pipe fixing system comprises a cylindrical body having a tapering part whose diameter is smaller as it goes towards the top of the body; an entry provided in the body and having a bolt hole and a projection; a fixing chip provided in the tapering part, having, in the center, a bolt hole extending from the top to the bottom of the chip and having teeth on the surface contacting a pipe; and a bolt passing through the bolt hole of the entry and that of the fixing chip. A a spring recess and a bolt end are provided on lower part of the bolt and a spring is provided in the spring recess to prevent unintentional movement of the bolt.

Abstract: A hollow fiber connection for the radial sealing connection between a hollow fiber and a connection element and/or between the hollow fiber and a housing, particularly for a device for field flux fractionating. Here, the hollow fiber is arranged in a housing connection of the housing. A sealing of the hollow fiber in reference to the connection element and/or the housing as well as in reference to the environment may be yielded according to the invention such that an annular element and a connection element are coupled via a connection part to the housing and/or the hollow fiber and that the hollow fiber connection achieves a sealing via a section between the hollow fiber and the connection element, which is created by an axial displacement of the annular element in reference to the connection element.

Abstract: The various embodiments herein provide an apparatus for sealing and connecting pipelines ends laid on the land surface and in under water. According to an embodiment herein, the connector is made of hardened steel comprising of tubular housing shell, a plurality of bolts located over the housing shell, a wedge, at least two pusher leg associated to the bottom of the wedge, at least two gasket on either side of the connector end, a gasket spacer, a seat ring, an anti extrusion ring and a gripping block wherein the plurality of bolts are fastened vertically over the housing shell applying pressure on the wedge. The wedge in turn pushes the pusher legs forcing aside the gasket spacer, the seat ring and the anti extrusion ring towards the gripping block to apply pressure on the gaskets, sealing the pipelines ends.

Abstract: A stainless-steel fitting for resin tubes, which easily and securely connects resin tubes and is also inexpensive, is provided. Resin tube (9) is inserted into insert part (8), provided on fitting main body (1); nut (3) is screwed onto fitting main body (1) and sleeve (2) is moved; in the pipe fitting which presses and locks resin tube (9) between insert part (8) and sleeve (2), a step part, composed of large diameter part (2a) and small diameter part (2b), is formed on the outer surface of the sleeve part (2); the length of small diameter part (2b) is that wherein the end-face of the small diameter part (2b) protrudes outward from nut (3), when sleeve (2) is inserted into nut (3); and nut (3) and sleeve (2) are integrated by pressing and spreading the inner diameter of this end-face.

Abstract: The invention relates to a plug unit for connecting capillary tubes, especially for high-performance liquid chromatography, with a plug housing that has an axial borehole, with a plug capillary tube that projects through the axial borehole of the plug housing, and with a sealing element that has an annular cross section and that surrounds the plug capillary tube, and the front end of the plug capillary tube is sealed by an elastic and/or plastic deformation of the sealing element against the capillary tube receptacle opening of the bushing unit, wherein the plug housing is constructed so that it can be connected detachably to a bushing unit, wherein the front end of the plug capillary tube projects into a capillary tube receptacle opening of the bushing unit when the plug unit and bushing unit are connected and with its end surface essentially aligned opposite a front end of a bushing capillary tube or a bushing capillary tube opening of the bushing unit, and the sealing element is loaded directly or indirect

Abstract: A drive nut for a fitting includes an interior socket centered on a central axis and configured to receive at least a rearward portion of a conduit gripping member. The socket is defined by a radial drive surface positioned to engage the conduit gripping member during pull-up, a first longitudinal surface radially outward of said drive surface and a radially tapered second longitudinal surface between the drive surface and the first tapered longitudinal surface, wherein a conduit gripping device contact the second longitudinal surface upon an initial pull-up and each remake. This geometry facilitates a greater number of available remakes by reducing lost stroke, and can provide less stroke loss for fittings pulled up by torque.

Abstract: A fitting element, in particular for an HPLC application, is configured for providing a fluidic coupling of a tubing to a fluidic device. The fitting element includes a gripping piece configured to exert, upon coupling of the tubing to the fluidic device, a grip force between the fitting element and the tubing. The gripping piece includes a grip force distributor configured to transform an axial force, provided in an axial direction with respect to the tubing, into a plurality of individual grip force components, each grip force component is exerting on the tubing spaced apart in the axial direction from another grip force component, and the plurality of individual grip force components result in the grip force.

Abstract: A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.

Abstract: A fitting assembly is provided with a first fitting component having a stepped wall surface; and a second fitting component radially spaced from the first fitting component when the fitting assembly is in a finger tight condition prior to pull-up. When the second fitting component is displaced into contact with the stepped wall surface during fitting pull-up, the stepped wall surface assists in separating the first fitting component from the second fitting component upon fitting disassembly.

Abstract: In a flareless-type pipe joint, a pressing surface, which presses a rear end portion of a ferrule in the axial direction and toward the inner periphery of the ferrule, is formed in a joint body or a coupling member in which a cam surface is not formed. The ferrule has a groove that extends radially outward from the inner periphery. By pressing the rear end portion in the axial direction and toward the inner periphery by the pressing surface, the distal portion of the ferrule is pressed against the cam surface and an edge portion of the distal portion is deformed to bite into a pipe. An edge portion of a rear end portion of the inner peripheral surface of the ferrule is deformed to bite into the pipe.

Abstract: A moisture proof electrical connector assembly for securing an electrical metal tube or conduit to a connector body having opposed end portions and having a bore extending therethrough wherein an end portion includes a first linear length sized and shaped to receive a metal tube or conduit and a second linear length having a diverging inner surface provided with an intermediate shoulder for delineating the first length form the second linear length, and a complementary sealing gland for rendering the entire assembly moisture proof.

Abstract: A pipe joint and a method of joining pipes using the pipe joint prevent loss of a sleeve, enhance workability in the pipe joining operation, and ensure sealing performance. The pipe joint may be utilized in a refrigerant device, a heat pump hot water supply device, a closing valve and a water supply piping. The method for connecting piping may be used in an in-the filed piping method. The pipe joint includes a joint body, a fastening member such as a nut, and a sleeve. The sleeve is integrated with the fastening member or the joint body before the fastening member is attached to the joint body. When the fastening member is attached to the joint body, the sleeve is cut off and separated from the fastening member or joint body. When the nut is fully attached, the sleeve bites into the pipe, and the pipe is joined to the joint body.

Abstract: Embodiments of the invention provide a suspension system for supporting an enclosure. The system includes a compression fitting that couples an enclosure mounting assembly to a hollow connector tube and provides a substantially sealed pathway between the enclosure mounting assembly to the hollow connector tube. The compression fitting includes at least one coupling body and at least one compression nut. The compression nuts are tightened around portions of the coupling bodies to secure end portions of the enclosure mounting assembly and the hollow connector tube within the coupling bodies.

Abstract: A guide tapered surface 17 of a pipe coupling port 16 has a small diameter portion 17a guiding to a distal end portion 3a of a bite type sleeve 3 to bite into a coupling pipe 5 and a large diameter portion 17b sealing a tapered outer circumferential surface 33 of the bite type sleeve 3 by making close contact with the tapered outer circumferential surface 33 of the bite type sleeve 3. A tilt angle ?1 of the small diameter portion 17a relative to a central axis of the guide tapered surface 17 is greater than a tilt angle ?2 of the large diameter portion 17b relative to the central axis. Therefore, even when a distal end portion of the coupling pipe 5 is not inserted up to an innermost portion of the pipe coupling port 16, excellent sealing performance is obtained in a portion coupled to the coupling pipe.

Abstract: A fitting for coupling a tubing to another component of a fluidic device, the fitting comprising a male piece having a front ferrule and a back ferrule both being slidable on the tubing, the male piece further having a first joint element configured slidably on the tubing, and a female piece having a recess configured for accommodating the front ferrule and the tubing and having a second joint element configured to be joinable to the first joint element, wherein the back ferrule is configured in such a manner that, upon joining the first joint element to the second joint element, the back ferrule exerts a pressing force on the front ferrule to provide a sealing between the front ferrule and the female piece, and the back ferrule exerts a grip force between the male piece and the tubing.

Abstract: A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.

Abstract: The present invention is a capillary interconnection fitting and method of clamping a capillary in the fitting that separates a forward ferrule that holds the capillary from a secondary clamping device. The fitting comprises a sealing ferrule, a compression screw and a clamping device. The ferrule is fitted in a compression screw that mates to a fluidic component. The clamping device is decoupled from the ferrule and coupled to the compression screw.

Abstract: A method and apparatus for connecting air conditioning coolant lines. The apparatus comprises a coupler body, a coolant line, a flexible annular seal, a nut, and a deformable annular retainer. The coupler body has a passageway extending therethrough and a coolant line is disposed at least partially within the passageway. A flexible annular seal is disposed within the passageway in the coupler body for sealingly engaging the coolant line. The nut receives the coolant line therein and threadably engages the coupler body. A deformable annular retainer is disposed on the coolant line for engagement with the nut and the coupler body, wherein the threadable engagement of the nut with the coupler body urges the deformable annular retainer into a sealing engagement with the coupler body and the coolant line.

Abstract: A rotary compensating device used in a pipe under high pressure comprises an inner pipe (1), a sealing gland (3), a sealing seat (5) and a connecting pipe (7). One end of the inner pipe (1) is inserted into the connecting pipe (7), and the connecting pipe (7) is fixedly connected with one end of the sealing seat (5) and is installed on the outer surface of the inner pipe (1). The inner pipe (1) is provided with an annular outer flange (8), and the sealing seat (5) is provided with an annular inner flange (9). The sealing gland (3) is installed on the outer surface of the inner pipe (1) and inserted into the other end of the sealing seat (5) to abut against a torus sealing member (4). The sealing gland (3) connects with the sealing seat (5) via a connecting member (2). A sealing cavity is formed between the sealing seat (5) and the inner pipe (1), and an end face sealing member (6) is installed in the sealing cavity.

Abstract: A pipe fitting assembly package and fastening ring removal tool allow re-use and repair of push-fit piping fittings and valves without damage to the fitting or valve elements or the pipe. The quick connection pipe fitting assembly package of the present invention employs a threaded retaining cap that when removed, exposes the clamping, sealing and fastening mechanism of the fitting or valve. In one embodiment, the present invention further includes a removable packing gland mounted on a body about an axis of an orifice. The fastening ring removal device provided as part of the present invention is manually pushed onto the cylindrical object and is capable of expanding to traverse over the installed fastening ring. The fastening ring removal device includes a parallel angular surface to lift the fastening ring off of the pipe member.

Abstract: This locking ring is adapted to lock a joint between two tubular elements (4, 8). It extends around a central axis (X-X) and comprises segments (50) each having a main part (58) and two circumferential ends (60). Each segment (50) has a shape flaring out from a thin axial side towards a wide axial side. One of the segments (50) comprises a recess (62) for receiving a retaining member (16), which is axially open on the thin side. The receiving recess (62) extends solely through the main part, and it is circumferentially limited on both sides.

Abstract: A pipe connection has a aped pipe, a screw fitting body having an internal cone, a union nut, screwable onto the screw fitting body, having an internal clamping face, which, in the operating state of the pipe connection, works together with an outwardly projecting retention face of a retention bulge of the pipe which is produced facing away from the pipe end by reshaping and projects radially outward beyond the outer mantle surface of the pipe, and having an adapter ring which is supported on the side facing toward the screw fitting body by a conical clamping face in the internal cone of the screw fitting body. To provide an alternative pipe connection of this type, the adapter ring may be supported in the operating state on the side facing toward the pipe by a radially running contact face on the radially running front face of the pipe end.

Abstract: A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tube outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from the embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened. The fitting may include a self-gauging feature to indicate sufficient pull-up and to prevent excessive pull-up.

Abstract: A method and apparatus for connecting air conditioning coolant lines. The apparatus comprises a coupler body, a coolant line, a flexible annular seal, a nut, and a deformable annular retainer. The coupler body has a passageway extending therethrough and a coolant line has an end portion disposed at least partially within the passageway. A flexible annular seal is disposed within the passageway in the coupler body for sealingly engaging the deformable annular retainer. The nut receives the coolant line therein and threadedly engages the coupler body. The deformable annular retainer engages with the nut and the coupler body, and the end portion of the coolant line is disposed within the deformable annular retainer, wherein the threaded engagement of the nut with the coupler body urges the deformable annular retainer into a sealing engagement with the coupler body and the coolant line.

Abstract: A high pressure energizable tube connector for a well comprising a tube; a first connector assembly comprising: a female profile disposed over the tube and a first ferrule disposed over the tube adjacent the female profile; a second connector assembly comprising: an inverted jam nut disposed over the tube and a second ferrule disposed over the tube adjacent the inverted jam nut, wherein the second ferrule extends along the tube in a direction opposite the first ferrule; a nipple comprising a test port, wherein the nipple is disposed over the tube between the first ferrule and the second ferrule; a primary seal formed by compressing the first ferrule into the female profile using a pressure from the test port; and a secondary seal formed by compressing the second ferrule into the inverted jam nut using the pressure from the test port.

Abstract: A tube fitting for connection with a tube includes first and second flanges members and a ferrule between the first and second flanged members. The ferrule engages the tube to form a tube grip and seal when the first and second flanged members are drawn together. A tapered clamp may be used to draw the flanged members together.

Abstract: An example apparatus and method of using the apparatus are provided that include a fitting assembly configured to secure an instrument probe. A body portion of the fitting assembly includes a bore for receiving the instrument probe. A ferrule is configured for receiving and aligning the instrument probe. The ferrule includes an alignment feature configured for contacting the bore upon insertion into the body portion. The alignment feature of the ferrule constricts in response to contact with the bore to pre-align the ferrule for reception of the instrument probe. The fitting assembly can be used in a thermocouple arrangement such as with at least one connector.

Abstract: A coupling element (1) comprising a male sealing element (5) is disclosed herein. The male sealing element comprises a first end (7), second end (9), and a longitudinal axis extending between the first and second end. The coupling element is housed within a nut (3). In one aspect, the male sealing element has a generally cylindrical shape. Also, the male sealing element defines a fluid passageway therethrough for the transmission of fluid. The male sealing element is secured to a ferrule (13) which is located within a cavity of the nut. The first end of the male sealing element defines a conical sealing surface. In one aspect, the male conical sealing surface (17) mates with a female sealing element (23) which has a receptacle that is defined by a nearly complementary conical geometry. In this aspect, the male conical sealing surface has a mismatched angle when compared to the complementary conical female sealing element.

Abstract: A method of energizing a high pressure tube connector for a well comprising a tube; a first connector assembly comprising: a female profile disposed over the tube and a first ferrule disposed over the tube adjacent the female profile; a second connector assembly comprising: an inverted jam nut disposed over the tube and a second ferrule disposed over the tube adjacent the inverted jam nut, wherein the second ferrule extends along the tube in a direction opposite the first ferrule; a nipple comprising a test port, wherein the nipple is disposed over the tube between the first ferrule and the second ferrule; a primary seal formed by compressing the first ferrule into the female profile using a pressure from the test port; and a secondary seal formed by compressing the second ferrule into the inverted jam nut using the pressure from the test port.

Abstract: A coupling for connecting pipes to externally threaded fittings and stubs. The coupling comprises a coupling body, a gripper, gripper engagement means for causing the gripper to engage the pipe, a gasket, gasket engagement means for causing the gasket to seal around the pipe, gripper retention means for retaining the gripper within the interior of the coupling body during handling thereof, and gasket retaining means for retaining the gasket within the interior of the coupling body during handling thereof.

Abstract: High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut.

Abstract: A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition.

Abstract: A union for coupling two or more segments of tubing or optical fiber, having an elastomeric core with two or more tubular sections encased in a through bore of a union body, the ends of the union body bore having compression nuts having through bores for insertion of segments of tubing or optical fiber to be coupled, which, tubular sections, when compressed by the compression nuts, deform radially inwardly to hold and seal the segments of tubing or optical fiber inserted therein.

Abstract: A high pressure tube compression fitting/flared fitting for use in combination with a thick-walled tube and a connection body wherein a sleeve is in engagement with a thick-walled tube. The sleeve is generally cylindrically shaped with the exterior thereof coated and then etched. The sleeve includes a sharp annular biting portion engaging the thick walled tube. The sleeve further includes an inner annular symmetric concavity which engages the thick-walled tube upon deformation thereof. The thick-walled tube includes a flared end portion. A gland about the thick-walled tube engages the sleeve forcing it into engagement with the frusto-conical portion of the connection body coupling the tube, tube fitting and connection body together. The flared end of the thick-walled tube interengages and seals the frusto-conical portion of the connection body.

Abstract: A connector used for connecting the plastic metallic pipe includes a body, a cap, and three washers. The body has a section of thread in its outer wall for coupling with the cap which has a section thread in its inner wall. In operation, first insert the pipe into the cap, then insert the rubber washer, the metallic washer, and spring washer into the body, and then screw the cap into the body, such that the pipe is locked with the body.

Abstract: A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.