Abstract: A clamp assembly, for mounting around a tool joint coaxially joining cylindrical upper and lower workpieces, comprises an upper collar assembly and a lower collar assembly, each having semi-cylindrical left and right collar segments. The left and right collar segments of each collar assembly are removably connectable to each other by threaded fasteners to form the collar assembly. The upper and lower collar assemblies are coaxially mountable around the upper and lower workpieces, respectively, such that tightening the fasteners will urge the upper and lower collar assemblies to grip the upper and lower workpieces, respectively, and thus to provide increased resistance to relative rotation between the two workpieces about the tool joint axis. The upper and lower left collar segments, and/or the upper and lower right collar segments, may be interlockingly and radially slidable relative to each other to accommodate differences between the outside diameters of the two workpieces.

Abstract: A rotary union includes a housing forming a bore and a piston bore having an open end and disposed at a radially offset distance with respect to the bore. The piston bore is fluidly isolated from the bore. A seal carrier is slidably disposed within the bore, and includes an actuation arm extending radially outwardly relative to the bore such that it overlaps the piston bore. A piston slidably disposed in the piston bore is extendible to releasably abut the actuation arm and urge the seal carrier to displace relative to the bore when the piston displaces relative to the piston bore.

Abstract: A support ring for a tubular connection is provided that comprises a body comprising a first end and a second end. A circumferential ring lip extends from the first end of the body and positioned perpendicular to the body. A protrusion is positioned on the body between the first end and the second end. The protrusion comprises a top surface and a bottom surface.

Abstract: A connection system comprising: a dispensing member; a receiving member; first sealing means and second sealing means arranged at the interface between the dispensing member and the receiving member to enable redundant leak-tight engagement between the dispensing member and the receiving member; a control chamber defined between the first sealing means and the second sealing means; and means for measuring the current pressure in the control chamber so as to detect a gas leak.

Abstract: A pipe connection compensation device by magnetic fluid sealing comprising a compensation pipe, sealed end cap, coil, annular permanent magnet and tightening rod is provided, designed and configured in a novel manner to ensure the pipe connection compensation device by magnetic fluid sealing achieves a better sealing effect.

Abstract: A robot sealing structure including a shaft end face of a reducer, an attachment surface of an arm member that is to be in surface contact with the shaft end face, a number of bolts that fix the shaft and the arm member to each other in a state in which the shaft end face and the attachment surface are in surface contact; a recessed flat portion that is provided in part of one of the shaft end face and the attachment surface, and a seal member that is disposed on the recessed flat portion, where the recessed flat portion is a portion recessed in a direction along the center axis line of the shaft, with respect to the shaft end face or the attachment surface, and the recessed flat portion is continuous over an entire circumference around the center axis line.

Abstract: A rotary union includes a housing forming a bore and a piston bore having an open end and disposed at a radially offset distance with respect to the bore. The piston bore is fluidly isolated from the bore. A seal carrier is slidably disposed within the bore, and includes an actuation arm extending radially outwardly relative to the bore such that it overlaps the piston bore. A piston slidably disposed in the piston bore is extendible to releasably abut the actuation arm and urge the seal carrier to displace relative to the bore when the piston displaces relative to the piston bore.

Abstract: A coolant connection of a heat exchanger includes at least one male connector on the side of the heat exchanger and at least one connection stem on the side of the housing. The at least one connection stem is designed on its side fluidically away from the heat exchanger for the connection of a coolant line or as part of a coolant line and on its side toward the heat exchanger as a female connector for the at least one male connector. The coolant connection provides at least two circumferential sealing areas. The coolant connector has a connecting flange enclosing radial fluid lines arranged between the sealing areas which vent to the environment. In the event of a seal failure, coolant leakage may pass through the radial fluid lines to the environment, preventing coolant from bypassing the sealing areas into and air intake tract.

Abstract: A connecting device for a medical infusion system includes a connection piece which has a connecting profile for the connection of a functional part of the infusion system. The connecting device also has a resiliently flexible, cup-like valve body which is arranged in the connection piece and has a valve casing and cap-shaped top region which is provided with a slit arrangement. Further, the connecting device has a dimensionally stable base portion on which a base ring of the valve casing is supported and which is firmly connected to the connection piece. In the unloaded initial state, the valve casing has a convex internal contour which, starting from the cap-shaped top region, first expands in the direction of the base ring and subsequently narrows again, forming an O-like internal longitudinal section. The connecting device can be in the form of a three-way stopcock for an infusion system.

Abstract: A fiber optic pulling grip assembly includes a sleeve unit sleeving around a cable section of a fiber optic cable and a guiding unit. The sleeve unit includes a sleeve member, an insertion tube received in a receiving space extending along the sleeve member, and a blocking member connected to the sleeve member. The guiding unit includes a fixing ring disposed between an optical fiber section and a mesh of the fiber optic cable, a rear portion connected to the sleeve member to clamp a rear end of the mesh, a front portion defining a channel for passing of the optical fiber section and the mesh, a connecting member connected to the optical fiber section and a pulling member connected to the front portion to clamp a front end of the mesh.

Abstract: A swivel stack for transfer of fluid across a rotary interface around a main rotation axis between an incoming flow-line and an outgoing flow-line, includes an inner cylindrical body and a first cylindrical annular element. The cylindrical annular element is mounted on the inner cylindrical body so the rotational axes of the annular element and cylindrical body coincide. The inner cylindrical body has an internal conduit running from a cylindrical base parallel to the rotation axis. The conduit has an outlet port communicating with a circumferential cavity on the cylindrical surface of the inner cylindrical body. The first cylindrical annular element includes a toroidal cavity on its internal cylindrical surface. The first cylindrical annular element is mounted on the inner cylindrical body at the level of the outlet port so the toroidal cavity and the circumferential cavity form an annular chamber communicating with the outlet port of the internal conduit.

Abstract: A routing support (64) for a conduit line fastened in openings and the line includes a plurality of conduits connected end-to-end along a longitudinal axis. The routing support (64) incorporates an outer body (66) with a structure (68) for fastening the body in an opening. The routing support also includes a housing structure to accommodate the ends of two conduits in an end-to-end arrangement and the structure may include two separate structures (one for each conduit end (72)) or a single common structure (accommodating respective ends of the two conduits). The routing support also includes a flexible interface (74) connecting the housing structure (70) to the outer body (66). In addition, the flexible interface (74) and the outer body (66) and the housing structure (70) are integral. Embodiments include a line for transporting fuel with this routing support, and an aircraft wing in which such a line/support transports fuel.

Abstract: The invention relates to a garden hose with at least one cover layer. The aim of the invention is to improve the grip of the hose relative to the hand of the user and/or on a connection to a connecting element via a compression-type fitting. For this purpose, a relief structure is produced on an outward surface of a cover layer of the hose. The relief structure can substantially improve the haptic impression and/or, when the connection is tight, bring about an interlocking or at least semi-interlocking engagement of retaining elements of a connecting element with the relief structure and substantially increase the retaining force which prevents the hose end from accidentally slipping off the connecting element.

Abstract: Disclosed are methods and apparatuses for removing and/or installing valves located between two fixed pipe spool pieces. The valves can be located between first and second immovable pipe spool pieces having a fixed distance between the first and second immovable pipe spool pieces, and in the process of removal a gap is created between the first and second immovable pipe spool pieces. The immovable pipe spool pieces can have longitudinal axes which are parallel, and the gap created along a longitudinal line which is parallel to the two longitudinal axes of the pipe spool pieces. The longitudinal axes of the first and second pipe spool pieces can be coincident with each other.

Abstract: A control structure is provided for a throttle valve of engine. The throttle valve includes a throttle plate arranged inside the valve body and mounted to a control shaft having an end extending outside the valve body and received in a control seat mounted outside the valve body and having a shaft hole seat, a constraint block, a coupling hole seat, and a cable outlet section. A control assembly includes a return spring and a control rocker arm that includes a connection section forming a connection hole to be fit over the control shaft and a cable connection section, a positioning section, and a push section. The control motor is mounted to the coupling hole seat of the control seat and has a driving rod having a front tip section positioned against the push section of the control rocker arm. The control seat lid is secured to the control seat.

Abstract: A joint device for a corrugated pipe. A socket pipe in which a packing is forcedly inserted is joined to a non-corrugated part of the corrugated pipe and the non-corrugated part is expanded at the position of the packing. The joint device has a guide groove formed on the outer circumference of the socket pipe, a connector fit to the socket pipe, and a movable bolt screw-coupled to the outer face of the socket pipe and forcedly joined to the guide groove, so as to freely rotate the connector independently from the corrugated pipe.

Abstract: An exhaust pipe connecting structure includes a first exhaust pipe, a second exhaust pipe, a seal member, and a gasket. The second exhaust pipe is a separate part from the first exhaust pipe. The second exhaust pipe is connected to the first exhaust pipe and defines an exhaust passage together with the first exhaust pipe. The seal member is located between the first exhaust pipe and the second exhaust pipe in a connecting portion where the first exhaust pipe and the second exhaust pipe connect. The gasket is arranged between the seal member and the exhaust passage in the connecting portion where the first exhaust pipe and the second exhaust pipe connect together. The gasket has a heat resistant property.

Abstract: In one embodiment, a vacuum attachment for reaching smaller spaces includes a gasket and narrow tubing. The gasket includes i. a cap member sized to fit over an open end of a vacuum hose, the cap member having an inner surface and a central hole to accommodate a narrow tube; ii. an inner wall extending from the central hole of the cap and gripping the narrow tube; and iii. an outer wall extending from the cap member to a distal edge and accommodating the vacuum hose; iv. a middle wall between the inner and outer walls, the middle wall stiffening the gasket for more convenient and accommodating an additional size of vacuum hose, the outer and middle walls being equipped with ribs on the internal sides of the walls, the ribs extending from the cap to the distal ends of the walls; and v.

Abstract: A pressure regulation system for a high pressure swivel comprises an annular inner wall and an annular outer wall, mutually rotatable around an axis, defining a toroidal chamber, and a gap extending axially between the walls from the chamber to an outer part. Positioned in the gap are an isolation seal, an isolation gap section, a primary seal, a primary gap section and a secondary seal. A first pressure control unit is connected to the chamber and to a pressurization device coupled to the isolation gap section for supplying fluid to the isolation gap section from the pressurization device.

Abstract: A connecting structure includes housing, a first fixing member, a second fixing member, a sealing member, and an elastic member. A stepped hole is defined on the housing, and includes a first vent, a second vent, and a third vent communicating with each other. A diameter of the second vent is gradually decreased from the first vent toward the third vent, thereby forming a resisting surface on a periphery of the second vent. The first fixing member and the second fixing member are mounted on opposite ends of the housing. The sealing member includes a sealing portion with an exhaust opening. The sealing member is received in the first and second vents, and resisting against the first fixing member. The exhaust opening communicates with the first and second vents. The elastic member is received in the third vent, and resisting between the second fixing member and the sealing member.

Abstract: A coating which provides corrosion resistance, wear resistance, and, optionally, lubrication, for deposition on a threaded article is disclosed. The coating comprises a polymer matrix, such as a polyimide, which is modified with small amounts of a fluorine containing polymer modifier, as well as other compounds or additives to improve performance of the coating. Additionally, the coating can further comprise a solid lubricant or an anticorrosion compound dispersed within the polymer matrix.

Abstract: A filler neck adapter to be inserted through the open fuel mouth of a capless filler neck of a fuel tank of a motor vehicle. The adapter has a hollow flow body to create a continuous flow path between a source of pressure or vacuum and the fuel tank to enable the fuel tank to he tested for leaks. A resilient seal surrounds the flow body of the adapter so as to lie between movable and stationary seal stops. A force-generating member is moved along the flow body to push the movable seal, stop and the seal towards the stationary seal stop. Accordingly, the seal is compressed between the movable and stationary seal stops so as to bulge outwardly towards and thereby create an air-tight seal against the fuel mouth of the filler neck.

Abstract: An externally engaging test barrier for use in testing hydrostatic pressure in a plumbing system having two abutting plumbing components. The test barrier includes a barrier body having a first face, a second face, and at least one peripheral engagement for engaging an external surface of at least one of the two abutting plumbing components to hold the barrier body in position across an end of at least one of the two abutting plumbing components. The peripheral engagement extends perpendicularly from the first face or the second face. A removable portion of the barrier body is defined by a frangible connection. The peripheral engagement of the barrier body is incapable of sealing the plumbing system during a hydrostatic pressure test, unless used in combination with a pipe coupling that forms an overlying sealing sleeve.

Abstract: A rotary union includes a rotating seal carrier having a rotating seal member connected thereon, and a non-rotating seal carrier having a non-rotating seal member connected thereon. A piston portion of the non-rotating seal carrier has a flow restrictor ring disposed thereon, and both are slidably and sealably disposed within a piston bore formed in a housing. A gap is formed between an outer diameter of the flow restrictor ring and an inner diameter of the piston bore. The enlarged diameter of the piston portion provides a net pneumatic or hydraulic surface that can be acted upon by a fluid at a positive or negative atmospheric pressure present within the piston bore of the housing.

Abstract: A mating connection assembly permits quick and efficient connection and disconnection of tubular goods and equipment. A female box-end connection member has a body, a central through-bore, a bowl-like receptacle section having a tapered internal surface and inwardly-extending load shoulder members along the tapered internal surface, grouped in stacks of spaced-apart rows. A mating male pin-end connection member has a body section, a tapered pin extension, a central through-bore and lug members on the outer surface of the tapered pin extension. The tapered pin extension of the male pin-end connection member can be stabbed into the female box-end connection member and partially rotated. When joined in mating relationship, the connection assembly provides a fluid pressure seal, supports high-tensile axial loading and permits the transmission of torque through the connection assembly.

Abstract: A tube coupling including a body having a bore and an open end, a slidably movable jaw ring received in the bore, a bushing fitted into the body open end having a surface facing the movable jaw and defining a stationary jaw, and a resiliently expandable grab ring disposed in the bore between the movable and stationary jaw. With a tube end being inserted into the bore and through the grab ring, and with the tube being grabbed by the grab ring to retain the tube end in the bore, the movable jaw is responsive to fluid pressure received within the tube to slidably move towards the stationary jaw face such that a portion of the grab ring is clamped therebetween.

Abstract: A sealing device is provided suitable for making at least partially fluid-tight a connection between a first pipe and a smaller second pipe, a part of the second pipe being able to be engaged in the first pipe while leaving an inter-pipes space between the two pipes in the radial direction. The sealing device is mounted on a supporting pipe and is adapted to spread out in the inter-pipes space from a guard position to a sealing position. It comprises at least one sealing set including substantially rigid movable sealing members which extend each along a predetermined angular sector in a circumferential direction and are individually guided in displacement between said guard position and said sealing position.

Abstract: A connector comprised of a body having a fluid passageway extending therethrough, wherein a first fitting is formed at a first end of the body and a second fitting is formed at a second end of the body, an opening formed in the body that is in communication with the fluid passageway, and a pressure relief valve element located in the opening. In one embodiment, the connector is an elbow connector having a tube fitting and a male (Luer) conical lock fitting. The connector is particularly well suited for connecting fluid supply lines with medical devices where the pressure level in the fluid supply line may need to be reduced due to an overpressurization condition.

Abstract: A rotating union communicates with a rotor member and is operable with either compressible or incompressible coolant media that enters the union through a media inlet. The union includes a housing having a counterbore and a tubular carrier member axially moveable in the housing. The union includes a primary seal assembly having a rotating seal member mounted to the rotor member and a non-rotating member mounted to the carrier member and a secondary seal member positioned about the carrier member. The range of the balance ratio of the primary seal assembly is disclosed when the primary seal assembly has imposed upon it a closing force, an opening force or no force.

Abstract: A high pressure swivel includes an annular inner wall and an annular outer wall, rotatable relative to one another around an axis, the walls defining a toroidal chamber, an axial gap extending between the walls from the chamber to an outer part, the gap including seen in the direction of the outer part: an isolation seal situated in the gap adjacent the chamber, an isolation gap section extending downstream from the isolation seal, a primary seal situated in the gap, a primary gap section situated downstream from the primary seal, and a secondary seal situated downstream from the primary seal, a first pressure control unit being connected to the chamber, to pressurization elements that are coupled to the isolation gap section for supplying fluid to the isolation gap section from the pressurisation elements when the pressure in the chamber rises and for venting fluid from the isolation gap section when the pressure in the chamber drops, to maintain the pressure in the isolation gap section at a substantially c

Abstract: There is disclosed a three bolt breakaway coupling adapted to be connected to either one or both ends of a flexible fluid conduit having a housing at each end that may include a valve. The breakaway coupling has two generally triangular shaped flanges where each flange has a central opening surrounded by a sealing member such as an 0 ring and an opening located at each corner of each triangular shaped flange for receiving a shear bolt. At least two of the three shear bolts which couple the two triangular flanges together will break when a specified pull at any angle is applied to the three bolt breakaway coupling. The first and second housings may contain valves for controlling the flow of a fluid through the conduit.

Abstract: An externally engaging test barrier for use in testing hydrostatic pressure in a plumbing system having two abutting plumbing components. The test barrier includes a barrier body having a first face, a second face, and at least one peripheral engagement for engaging an external surface of at least one of the two abutting plumbing components to hold the barrier body in position across an end of at least one of the two abutting plumbing components. The peripheral engagement extends perpendicularly from the first face or the second face. A removable portion of the barrier body is defined by a frangible connection. The peripheral engagement of the barrier body is incapable of sealing the plumbing system during a hydrostatic pressure test, unless used in combination with a pipe coupling that forms an overlying sealing sleeve.

Abstract: A plug element (1) for connecting supply lines of an articulated train with at least one line element (3) comprising a fluid contact (4) formed thereon located in the housing (2) of said train, said fluid contact able to be brought into functional engagement with a second plug element (5). The object of the invention was to provide a plug element (1) that remains in an operationally safe position without the pre-stressing force of a spring element (11a, 11b). The object is met according to the invention by a plug element (1) in which the housing (2) can be moved laterally relative to a connection socket (6) that is fixed in space and the cross sectional area (AD1, AD2) for pressurization of the line element (3) is configured such that upon impingement with compressed air a force acts in the direction of insertion (8).

Abstract: A probe seal for a female hydraulic coupling member has both internal and external pressure-energized seals. The outer wall or opposing ends of the seal have one or more pressure-energized seals for sealing between the body of the probe seal and the body of a coupling member in which the probe seal is installed. In certain embodiments, the generally ring-shaped probe seal has an annular fluid chamber in one or both end walls of the body of the seal. Hydraulic fluid under pressure may enter the annular fluid chamber and exert a generally radial force in response to a pressure differential. This radial force can act to increase the sealing effectiveness of the probe seal to the body of the female coupling member having such a probe seal. In “negative pressure” situations (i.e.

Abstract: A connector for connecting a pipe, such as a fuel pipe, to another fuel pipe or pipe terminal.

Abstract: A rotating union communicates with a rotor member and is operable with either compressible or incompressible coolant media that enters the union through a media inlet. The union includes a housing having a counterbore and a tubular carrier member axially moveable in the housing. The union includes a primary seal assembly having a rotating seal member mounted to the rotor member and a non-rotating member mounted to the carrier member and a secondary seal member positioned about the carrier member. The range of the balance ratio of the primary seal assembly is disclosed when the primary seal assembly has imposed upon it a closing force, an opening force or no force.

Abstract: A joint restraint is provided for a curved pipe joint having a curved pipe section joining two adjacent pipe sections. The pipes are joined using tubular sleeves held by hose clamps to form fluid tight seals, with two clamps on each end of the curved pipe sections and two clamps on each proximal end of the adjacent pipe sections. An inner strap extends between and fastens to one of the clamps on each adjacent pipe section forming a chord of an arc. An outer strap extends along an outer periphery of the joined pipes and fastens to the other clamps on each adjacent pipe section.

Abstract: A fitting for making a metal-to-metal fluid seal between a first conduit and a second conduit and corresponding first and second fluid passages. The first conduit has a generally spherical-shaped exterior surface, and the second conduit has a generally conical-shaped interior surface for receiving the generally spherical-shaped exterior surface of the first conduit. A nut is engaged with a threaded exterior surface of the second conduit, tightening of the nut on the threaded exterior surface urging the first and second conduits axially together to apply increasing pressure. A ring can be positioned between the nut and the first conduit, the ring providing a lower net coefficient of friction during tightening of the nut compared to direct contact between the nut and first conduit. The ring can be radially spaced from a radially facing interior surface of the nut.

Abstract: A threaded joint comprises a pin coupled to a box with an annular groove, one or a pair of seal rings, and hydraulic actuating means to pressurize the seal ring or rings against the pin to provide improved scalability of the joint. The seal ring or rings comprise a frustoconical surface, an external surface, and an internal surface with one or more protruding annular ribs. In the unpressurized state, the seal ring or rings do not protrude from the groove. In the pressurized state, the frustoconical surface of the sealing ring is in sealing contact with an internal surface of the annular groove of the box, and the annular ribs of the sealing ring are in sealing contact with the external surface of the pin.

Abstract: An electrical feedthrough assembly for providing connection to components of a compressor. The electrical feedthrough assembly includes a housing having an inner surface defining a channel. A sealed wire assembly is provided in the channel. The sealed wire assembly includes a body having an outer surface defining a groove and a plurality of wires sealingly passing through the body. An o-ring fits in the groove to provide a hermetic seal between the body and the inner surface of the housing.

Abstract: A joint for joining the ends of two pipes has a socket (or box) on the end of one pipe into which the end of the other pipe is inserted. The part of the socket which surrounds the inserted pipe has an external tapered surface. A correspondingly tapered sleeve surrounds the socket and can be moved axially to apply a compressive force to the taper on the socket which is thus compressed inward against the inserted pipe end to frictionally grip the inserted pipe end.

Abstract: An apparatus that facilitates tight sealing between a first space and a second space. The second space is at least partially enclosed by a member. The apparatus includes or performs creating or maintaining a pressure difference between a pressure in a third space at a seal assembly and pressure in each of the first space and the second space; and pushing, caused by the pressure difference, against a seal in the seal assembly to tighten sealing provided by the seal.

Abstract: Drainage apparatuses and methods for their assembly, the drainage apparatuses comprising inter-related connectors and couplings to improve standardized assembly, and improve installation and system performance.

Abstract: A joint for connecting two tubes. The joint includes a first tube that provides a ball interface at its end. The joint also includes a second tube that provides a cup interface inside its wall. The cup interface of the second tube and the ball interface of the first tube form a cup-ball interface. This cup-ball interface is located in the interior of the second tube.

Abstract: The invention relates to a sealing device for a swivel, an improved attachment device and a method for improving a seal in a swivel, where a sealing medium is composed according to the viscosity and chemical composition of the application concerned and has a viscosity substantially over 500 cst and where the sealing medium is pressurised by a pressure transmission unit.

Abstract: A coupling device for releasably interconnecting conduit elements includes two coupling members, each having a central opening therethrough. A tapered pocket is defined in one coupling member to act as a seat for slidingly receiving the other coupling member, which is in the form of a wedge-like element. An alignment mechanism ensures complete engagement between the two coupling members. Two annular grooves are disposed opposite each other about the central openings of the respective coupling members. A gasket is disposed in one of the grooves for engaging the opposite groove when the coupling members are fully interengaged. The gasket has a first annular portion of a compressible resilient material for positioning in one annular groove, and a second annular portion extending from the first annular portion, of a less compressible material, for compression into the first annular gasket portion as the coupling members are being interengaged.

Abstract: This female connector element (A) is able to receive a male element (B) by fitment and comprises a seal (25), housed inside a body (21) of the element and able to interact in a sealed manner with a peripheral surface (13) of a male element (B). The female element (A) also comprises an interface member (27), housed inside the body (21) and able to move in translation parallel to the axis of fitment (X-X?). The interface member (27) is able to be moved axially by a male element (B) during fitment into the female element, from a first position, in which it is inserted radially between the seal (25) and the peripheral surface (13) of the male element, to a second position, in which it is offset axially relative to the seal (25) and the seal (25) rests in a sealed manner on the peripheral surface (13) of the male element.

Abstract: The present invention generally relates to an adjustable connector that acts as a coupling device to connect an object (such as pipe or tubing) having a range of diameters and thread styles to an item (such as a piece of equipment or another length of pipe or tubing). The device is generally comprised of a casing member and an internal member, which is further comprised of tab members positioned in tab openings in a core member. Preferably, a semi-flexible sheath covers the internal member and seals it to the casing member and the object, so that a chamber is formed between the internal member and the casing member. Mechanical compression members may be placed in the chamber. As pressure increases within the object, the chamber pressure may also increase, forcing the sheath against the tab members, which are forced against the object, holding the object in place by friction.

Abstract: A joint for joining the ends of two pipes (12, 14) has a socket (or box) on the end of one pipe (14) into which the end (30) of the other pipe is inserted. The part (36) of the socket which surrounds the inserted pipe has an external tapered surface (38). A correspondingly tapered sleeve (42) surrounds the socket and can be moved axially to apply a compressive force to the taper on the socket which is thus compressed inward against the inserted pipe end to frictionally grip the inserted pipe end.

Abstract: A sanitary filtration plant including an oblong, tubular pressure vessel having one or more helical filter elements. Each helical filter element has a spiral-wound filter member and a central tube and, at an outlet end, a supporting structure formed as a wheel with a hub, spokes and a rim. The plane side of the downstream face of each supporting structure is provided with a plurality of recesses that are positioned between an opening between the spokes and the external periphery of the rim and extend circumferentially so as to be substantially concentric with said rim.