A push to connect fitting includes a body member adapted to receive a conduit end, a conduit comprising a first end that can be axially inserted into the body member and a conduit gripping device attached to an exterior surface of the conduit, and a retainer that retains the conduit in place when said conduit is fully inserted into the body member. Additional embodiments include providing a seal with the fitting that seals the exterior surface of the conduit, an optional load retaining sleeve for the conduit gripping device, and an optional gimbal. The push to connect aspect may be realized in the form of a single action unthreaded mechanical connection.

The present invention relates to a pipe coupler having a function of covering a pipe. More particularly, the present invention relates to a pipe coupler which can prevent a coating layer of a pipe coated with the coating layer from being peeled from a tip of the pipe by a continuously acting hydraulic pressure by forming a pipe locking protrusion in which a front end of the pipe is surrounded and covered with a packing member, seal even a pipe having a non-smooth or grooved outer peripheral surface, and furthermore ensure watertightness or airtightness more reliably by using a pair of packing members acting in the form of a swash cam plate in accordance with an insertion of a pipe.

A sealing cover with quick-plug interface, comprising: cover body, above which a through hole is arranged, and in which a communication hole is arranged, and said through hole is connected with said communication hole; an annular sealing member and an annular fixing sleeve are arranged in said through hole, and said sealing member is arranged at the bottom of said through hole, and said fixing sleeve is arranged above said sealing member; said sealing member and said fixing sleeve are both clipped to an inner wall of the through hole, and said sealing member is made of a flexible material. There is no metal material in contact with the fluid inside the sealing cover with quick-plug interface, so there is no hidden danger of corrosion in long-term use, and the defect that the metal material is not resistant to corrosive fluids is avoided.

A tube connector for attachment to an end of a tube of a pressurized fluid system has a housing, a main sealing element, a gripping element and a cone element. The main sealing element is arranged for sealing an inner surface of the housing to an outer surface of a tube. The gripping element comprises a gripping edge for engaging with an outer surface of a tube. The cone element limits a movement of the grip-ping element. The tube connector further has an integrated release element. The release element has a tubular part, a top part and an environmental sealing. A release edge of the tubular part engages with the gripping element and the environmental sealing is adapted for sealing a receptacle formed in the housing of the environment.

An apparatus (10) for coupling with a pipe (12), the apparatus (10) including a body assembly (13) having a body (14) adapted to fit with the pipe (12), and at least two gripping parts (16) moveably coupled to the body (14), the at least two gripping parts (16) being adapted to be moveable between an insertion condition, in which the gripping parts (16) are resiliently depressible to allow movement of the pipe (12) in a first insertion direction, and a gripping condition in which the gripping parts (16) each engage with opposing side walls (18) of the pipe (12) to restrict movement of the pipe (12) in a second opposing direction thereby coupling the apparatus (10) and the pipe (12).

A push to connect fitting assembly includes first and second fitting components joined to define an interior cavity, a seal device, and a retainer. The seal device is disposed in the interior cavity, and seals one of the first and second fitting components with an outer surface of a conduit end when the conduit end is inserted into the outboard end of the first fitting component. The retainer is assembled with at least one of the first and second fitting components, and includes a gripping portion that engages the inserted conduit over a first surface contact area to grip the conduit end, and a colleting portion outboard of the gripping portion. The colleting portion engages the inserted conduit end over a second surface contact area greater than the first surface contact area to collet the inserted conduit end.

A push to connect fitting assembly includes first and second fitting components joined to define an interior cavity, a seal device, a retainer, and a biasing member. The seal device is disposed in the interior cavity, and forms a seal between one of the first and second fitting components and an outer surface of a conduit end when the conduit end is inserted into the outboard end of the first fitting component. The retainer is assembled with at least one of the first and second fitting components, and includes a gripping portion that grips the inserted conduit end. The biasing member is axially disposed between the retainer and the seal device, the biasing member applying a first axial load to the retainer to produce a gripping force between the gripping portion and the inserted conduit end.

A solenoid valve quick-connecting structure includes a main body having a three-way channel therein. A surface of the main body is formed with a first connecting opening, a second connecting opening and a third connecting opening. At least one of the first connecting opening and the second connecting opening is provided with an accommodating chamber. The accommodating chamber has a reduced section and an enlarged section. The enlarged section is connected to one side of the reduced section, distant from the first connecting opening or the second connecting opening. The accommodating chamber is provided with a positioning clamp that has an annular base and spaced clamping blocks. The clamping blocks are deformable through a gap defined between every adjacent two of the clamping blocks for clamping an external pipe. A solenoid valve body is disposed at the third connecting opening for opening or closing the three-way channel according to an electronic signal.

A pipe coupling (100) for receiving, holding and releasing a pipe, comprising a coupling body (110) having a bore (B) with a geometric axis (A) into which a pipe can be inserted in a pipe insertion direction (P); a rotatable sleeve (170) which is arranged at least partially around the coupling body (110) and which is rotatable around the axis of the bore with respect to the coupling body (110); a gripping element (140) configured to engage a surface of the pipe; a pipe release element (160) configured to disengage the gripping element (140) from the surface of the pipe upon axial movement of the pipe release element (160); and a release collar (180) coupled to an end of the rotatable sleeve (170). Axial rotation of the rotatable sleeve (170) in a first direction causes the release collar (180) to move axially from a locked position to an unlocked position and wherein in the unlocked position, the release collar (180) can be moved axially in a pipe insertion direction (P) to cause the pipe release element (160) to disengage the gripping element (140) from the surface of the pipe.

Disclosed is a sealing arrangement (10) for producing a sealing function in an, in particular static, pipe connection, in particular between a fluid-carrying pipe (11) and a connection sleeve (12). The sealing arrangement (10) comprises a ring seal (20) arranged in a circumferential groove (121), a seal seat (30) and a clamping element (40) for clamping the ring seal (20). The sealing arrangement (10) has a pressure side. The seal seat (30) is arranged in the circumferential groove (121) on the pressure side and has overflow openings (31) so that the ring seal (20) is exposed to the pressure of the fluid on the pressure side. Additionally or alternatively the seal seat (30) is arranged in the circumferential groove (121) and is configured to be conically tapering in the direction of the pressure side so that by clamping the ring seal (20) this is compressed in a radial direction, wherein the circumferential groove (121) remains accessible on the pressure side.