In the case of a connector for inserting into a receiving depression in a housing, having a stub with a flow channel formed therein, the flow channel extending as far as a frontal end of the stub and being surrounded by a lateral surface. Provision is made for a bracing ring to surround the lateral surface. The bracing ring is designed so that, as a result of an axial force acting on the bracing ring and being directed towards the frontal end, the bracing ring can be pushed all the way onto the lateral surface, an external diameter being increased in the process.

In the case of a connector for inserting into a receiving depression in a housing, having a stub with a flow channel formed therein, the flow channel extending as far as a frontal end of the stub and being surrounded by a lateral surface. Provision is made for a bracing ring to surround the lateral surface. The bracing ring is designed so that, as a result of an axial force acting on the bracing ring and being directed towards the frontal end, the bracing ring can be pushed all the way onto the lateral surface, an external diameter being increased in the process.

A pipe fitting configured to be coupled to a pipe. The pipe fitting includes a body that is elongate along a central axis that extends in a longitudinal direction. The body includes a shell, a stiffener, and a shell-stiffener. The shell includes a shell inner surface that defines a shell through hole that extends through the shell in the longitudinal direction. The stiffener is positioned within the shell through hole, and the stiffener includes a stiffener outer surface that faces the shell inner surface such that the stiffener outer surface and the shell inner surface cooperate to define a pocket configured to receive the pipe. A shell-stiffener seal member is positioned about the stiffener such that a seal member inner surface is substantially flush against the stiffener outer surface and a seal member outer surface abuts against the shell inner surface.

A connector comprising a body (1) having a through-way defining an axis and which is open at one end (4) and a shoulder (8) in the through-way faces the open end and supports an O-ring (9). A cap (2) is fitted within an open end of the body and extends from the open end towards the opposite end, the cap being retained in the body (1) by a snap fit. The cap has a plurality of legs (24) extending away from the open end, the legs each having an outwardly extending tooth (22) at the end opposite to the open end to engage with a complimentary recess (12) in the body to provide the snap fit. A collet (3) in the cap has a plurality of legs (31) extending away from the open end, at least one collet leg engaging with a leg of the cap and having an inwardly facing tooth (32) to grip a tube in the through-way. The cap (2) has an inwardly facing tapered surface (29) that is tapered to provide a cap angle that engages with the collet legs (31) such that axial movement of the collet (3) towards the open end (4) causes inward deflection of the collet legs and causes a radially outward force to be applied to the legs (24) of the cap (2) via the tapered surface (29) to urge the or each tooth of the cap into its respective complimentary recess (12).

A connector comprising a body (1) having a through-way defining an axis and which is open at one end (4) and a shoulder (8) in the through-way faces the open end and supports an O-ring (9). A cap (2) is fitted within an open end of the body and extends from the open end towards the opposite end, the cap being retained in the body (1) by a snap fit. The cap has a plurality of legs (24) extending away from the open end, the legs each having an outwardly extending tooth (22) at the end opposite to the open end to engage with a complimentary recess (12) in the body to provide the snap fit. A collet (3) in the cap has a plurality of legs (31) extending away from the open end, at least one collet leg engaging with a leg of the cap and having an inwardly facing tooth (32) to grip a tube in the through-way. The cap (2) has an inwardly facing tapered surface (29) that is tapered to provide a cap angle that engages with the collet legs (31) such that axial movement of the collet (3) towards the open end (4) causes inward deflection of the collet legs and causes a radially outward force to be applied to the legs (24) of the cap (2) via the tapered surface (29) to urge the or each tooth of the cap into its respective complimentary recess (12).

A pipe coupler having a function of covering a pipe. The pipe coupler includes a coupler main body having a hollow, a grip ring provided in the hollow and configured to fix the pipe so as to allow the pipe to be inserted thereinto and prevent the inserted pipe from coming out, and a packing member provided in the hollow, and configured to seal a gap between the coupler main body and the pipe when the pipe is inserted into the packing member. The packing member includes a pipe locking protrusion protruding inward from an inner surface of a lower end portion thereof so that a front end portion of the pipe inserted into the packing member is surrounded and covered. The pipe coupler can prevent a coating layer of a pipe from being peeled from a tip of the pipe.

A tube fitting for connection to a tube includes a main body structure and a tube liner. The main body structure is configured to receive an end of the tube and fluidly connect the tube to another component. The tube liner is positioned at least partially within the main body structure and is configured to extend into the tube. The main body structure and the tube liner are configured such that, when the tube is fully inserted into the tube fitting, the end of the tube is positioned at a predetermined depth within the tube fitting, and the main body structure and the tube liner cooperate together to provide an audible indication to indicate that the tube has been fully inserted into the tube fitting.

A connection socket for a tubular connection includes a socket cup having a metal alloy composition and a sealing portion. A primary seal is positioned within the sealing portion. The primary seal includes an elastomeric material having a service temperature. One or more spacer rings are positioned within the sealing portion. A secondary seal is positioned within the sealing portion. The secondary seal includes a metal composition, wherein the secondary seal has a melting temperature at or above the service temperature of the primary seal. One or more locking rings are positioned within the sealing portion, wherein each of the one or more locking rings comprises a biting feature defined along an internal circumference of the locking ring.

A pipe fitting includes a fitting body defining an inner surface, an outer surface, a first fitting end, and an second fitting end, the inner surface defining a channel extending from the first fitting end to the second fitting end, a portion of the inner surface defining a tapered region tapering towards the first fitting end; and an engagement assembly comprising a metal grip ring received in the channel, the metal grip ring defining a ring body and a plurality of teeth extending inward from the ring body, the engagement assembly configured to slide along the tapered region.

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.