Abstract: A resin tube fitting has a body with a sleeve allowing the longitudinal end of the tube to be put therein, an inner ring with a press-in portion configured to be pressed in the longitudinal end of the tube, and a union nut with a connector configured to be screwed to an outer periphery of the body to allow the longitudinal end of the tube to be put radially between the connector and the press-in portion. The inner ring and the union nut are made of resin, which has a property of contracting in response to change in ambient temperature. The radial contraction rate of the connector is higher by 0.05% or more than that of the press-in portion of the inner ring.

Abstract: A system includes first and second hose couplings, each having a hose body, an enlarged section integrated with the hose body, and a connecting section that is mobile in relation to the hose body. An intermediate connector includes a central section, a first lateral section and a second lateral section. The first lateral section can fit into the first connecting section and the second lateral section can fit into the second connecting section. A locking device includes a body having a first locking section, a second locking section and a central locking section. The first locking section couples with the enlarged section of the first hose coupling, the second locking section couples with the enlarged section of the second hose coupling, and the central locking section couples with the central section of the connector.

Abstract: A fluid conduit assembly is provided that includes a first conduit coupler, a second conduit coupler and a lock. The second conduit coupler is mated with the first conduit coupler at a threaded interface. The lock is configured to rotationally fix the first conduit coupler with the second conduit coupler. The lock includes a flange, a clip and a fastener. The flange is arranged with the first conduit coupler. The flange is configured with a plurality of flange apertures arranged circumferentially about an axis of the first conduit coupler. The clip is arranged with the second conduit coupler. The clip is configured with a clip aperture. The fastener is mated with the clip aperture and any one of the plurality of flange apertures.

Abstract: A landing pipe includes a first tool joint, a second tool joint, and a main section extending from the first tool joint to the second tool joint, the main section having a first portion and a second portion. The first tool joint outer diameter is greater than both the main section first portion outer diameter and the main section second portion outer diameter. The main section third portion wall thickness is greater than the main section second portion wall thickness, and the main section second portion has a length range of 40% to 85% of an overall length of the landing pipe.

Abstract: Techniques for implementing and/or operating a pipeline system. The pipeline system includes a pipe segment, in which the pipe segment includes tubing that defines a pipe bore and a fluid conduit in a tubing annulus, and a pipe fitting to be secured to the pipe segment. The pipe fitting includes a fitting body that defines a fitting bore, a fitting jacket implemented circumferentially around the fitting body to define a tubing cavity, in which the tubing of the pipe segment is to be inserted into the tubing cavity and the fitting jacket is to be conformally deformed around the tubing of the pipe segment, and a fitting liner secured in the fitting bore of the pipe fitting such that a body section of the fitting liner is secured directly against the fitting body to facilitate blocking a solid particle in a slurry that flows therethrough from contacting the fitting body.

Abstract: A pipe coupling includes a coupling segment having an inner surface defining a ring groove proximate to an axial end of the coupling segment, the ring groove comprising a groove bottom surface extending from a first end of the coupling segment to a second end of the coupling segment; and a pipe connection ring disposed within the ring groove, the pipe connection ring defining a body with two ring ends and an outer surface, the outer surface of the pipe connection ring contacting the groove bottom surface at a midpoint between the first end of the coupling segment and the second end of the coupling segment when the pipe connection ring is in an uncompressed condition. The pipe connection ring may be a split ring defining an opening between the two ring ends, which may be square, tapered, angled, or stepped.

Abstract: An aseptic coupling arrangement can include a first coupling device and a second aseptic coupling device. In one embodiment, the first and second coupling devices are substantially similar, each having a main body defining a front face and a fluid passageway therethrough. A first connecting feature disposed on the main body of each coupling device may be provided for aligning and coupling the aseptic devices together. Each coupling device may also include a sealing member received in the main body and a membrane removably coupled to the main body front face to cover the sealing member. The first aseptic coupling device may also include a rotatable protective cover that is removably attached to the main body and connected to the membrane. In one embodiment, the removal of the protective covers away from two coupled main bodies, in a direction parallel to the front faces, causes removal of the membranes.

Abstract: A hydraulic fluid actuator has a housing and a seal member. The housing has a hydraulic hose port that is configured to receive a hydraulic hose. The seal member seals the hydraulic hose port. The seal member includes a frangible section configured to rupture upon attachment of the hydraulic hose into the hydraulic hose port with the seal member remaining between the hydraulic hose and the hydraulic hose port after attachment.

Abstract: Pipe elements have circumferential grooves. The grooves have a first side surface contiguous with a first floor surface. The first side surface and the first floor surface together subtend a first 90° circular arc when viewed in cross section. The grooves also have a second side surface contiguous with a second floor surface. The second side surface is in spaced relation to and in facing relation with the first side surface. The second side surface and the second floor surface together subtend a second 90° circular arc when viewed in cross section. A third floor surface is contiguous with both the first and second floor surfaces and is a flat surface. A coupling used to connect the pipe elements has arcuate projections which engage the grooves of the pipe elements. The arcuate projections have a semi-circular cross section. Relief grooves are positioned adjacent to each arcuate projection.

Abstract: An adapter for connecting a water pipe and a high-pressure spray gun includes a connection assembly, a clamping assembly, and a covering member. The connection assembly includes a connector body defined by a side wall and extending between a proximal end and a distal end, and a chute that extends along the connection body between the proximal and distal ends. The water pipe is coupled along the proximal end and the spray gun is coupled along the distal end. The chute includes grooves, and tapered regions seamlessly extending below from the grooves. The clamping assembly is operatively coupled to the connector body. The covering member sleeves over the connection assembly to movably engage with the clamping assembly, and is pressed and released to realise the buckle to move down from the grooves towards the tapered regions and back from grooves to the tapered regions, to clamp the water pipe.

Abstract: A connection device for connecting a main pipe (1) to a secondary pipe (2). The connection device includes a substantially cylindrical connection piece (3), able to be inserted, preferably able to be screwed, into a wall opening of the main pipe (1), for connection of the secondary pipe (2), wherein for sealing the connection piece (3) a preferably ring-shaped sealing element (4) is provided, lying against the main pipe (1), which sealing element is connected directly or via mechanical connecting elements to an outer circumference of the connection piece (3).

Abstract: A quick connection device with a double-checked locking mechanism includes a connection housing and a locking mechanism, the locking mechanism including a first locking mechanism inserted into the connection housing and having a pedestal from which a pair of retaining arms extends, the pair of retaining arms being connected by a connection strip to form a retaining ring for fitting with an opposite plug-in tube, and having an elastic reset component; and a second locking mechanism inserted into the connection housing having a base from which locking arms and holding arms extend, the first locking mechanism being inserted between the locking arms and the holding arms, wherein the locking arms support a portion of the first locking mechanism and the second locking mechanism prevents movement of the first locking mechanism from the locked position to an unlocked position when the second locking mechanism is in a locked position.

Abstract: A free-floating load ring for assembly into a flexible coupling having a convoluted bellows and a surrounding mesh sleeve, the ring captured by the sleeve at an end of the coupling and spacing the sleeve from the bellows when forces are applied to the coupling. Various rings can be added to existing non-load supporting or flexible couplings having no previous rings. The load ring is retained in place by engagement of coupling components with the ring without physical connection of the ring to any coupling component.

Abstract: A rotary union includes a housing having a shaft rotatably mounted in a bore. A plurality of annular plates is mounted on the shaft in spaced relation, and a plurality of spools is disposed in alternating fashion between the plurality of annular plates on the shaft. Each spool includes two seal rings creating mechanical face seals with adjacent annular plates. The shaft, the plurality of annular plates and the plurality of spools are arranged to assemble in a stacked arrangement, which is insertable as a whole into the cylindrical bore of the housing.

Abstract: A pipe fitting configured for engagement with a coupling can include a first end, the pipe fitting defining a raised lip at the first end; and a second end disposed opposite from the first end, the pipe fitting defining a groove between the raised lip and the second end. A pre-assembled coupling assembly includes a coupling, the coupling defining a coupling bore extending through the coupling, the coupling including a gasket disposed within the coupling bore, the gasket being relaxed and uncompressed when the coupling is in a relaxed position; and a pipe fitting, the pipe fitting defining a first end and a second end, the first end inserted into the coupling bore, the coupling retained on the first end of the pipe fitting when the coupling is in the relaxed position.

Abstract: A superhigh torsional strength, metallic and airtight drillrod coupler including an externally threaded coupler having a radially outward outer shoulder at an end thereof in an axial direction, an inner end face at the other end thereof in the axial direction, and a first sealing face being provided in sequence in the axial direction of the externally threaded coupler. The coupler further includes an internally threaded coupler to be threadedly connected to the externally threaded coupler, the internally threaded coupler having a radially inward inner shoulder at an end thereof in an axial direction, and an outer end face at the other end thereof in the axial direction, with a second sealing face. Further, the first sealing face and the second sealing face are both sloped faces, and are in an interference-fit sealed connection with each other.

Abstract: Connectors and connection systems for connecting two tubing sections together are provided. The connectors can include: a first end having an outer surface and adapted for insertion into an end of the tubing section and a second end adapted for connection to a second connector. The connector can have an attachment block in one aspect with a first threaded aperture and a second threaded aperture passing through it so that axial screws and radial screws can secure the connector to the end of a tubing section before it is connected to another connector. In another aspect, the connector can have an attachment slot provided in an outer surface of the first end of the connector sized to fit a retaining clips so that axial screws can secure the connector to an end of a tubing section before the connector is connected to another connector.

Abstract: A crimp coupling includes a crimping ferrule for connecting a hose to a fitting. The fitting includes an outwardly projecting stop collar and a groove which extends circumferentially around the fitting at a constant axial distance to the stop collar. The crimping ferrule, which can be slid onto the fitting, includes a flange, a tapering hinge section, and a cylindrical section. A distance between the stop collar and the groove of the fitting is dimensioned such that the flange, when abutting the stop collar, has a lower edge facing away from the stop collar above the groove. Due to a diameter reduction of the cylindrical section and the tapering hinge section, during crimping, the flange is pivoted such that the lower edge of the flange is turned into the groove by the pivotal movement of the flange.

Abstract: A fluidic connection assembly and methods for quickly connecting or disconnecting a tube to a port by hand and without the use of tools. A body is adapted to receive a tube therethrough, and may have at least two sides which are hinged. Each of the hinged sides has corresponding latching portions or projections located near a lower end of the body. These projections are adapted to fit into a port or other fitting and be securely held in place. The assembly may include a tube extending through a body and through a spring located between the end of the body and the end of the tube, whereby the spring exerts a force directly or indirectly against the end of the tube and against the body, thus holding the tubing securely and sealingly engaged in the port when the assembly is connected. The body may further comprise an additional body or an adapter, and/or a cap and latch.

Abstract: A connection device for at least one plug-in portion including an annular external groove includes a housing, into which at least one plug-in portion can be plugged, and also at least in each case one integral locking element and a securing device. A locking element includes a securing portion and a locking portion which can be preassembled in the housing. In the preassembled state, the locking portion, by elastic deflection, permits a plug-in portion to be plugged into the housing and brings about the locking of the plug-in portion in the housing. By means of the securing device, the securing portion can be secured on an outer side of the housing opening against displacement in a circumferential direction. A securing device is designed as a ring which engages around the housing and is movable on the housing at least axially counter to a resistance and has an axial recess in a plugging-in direction.