A pipe connector includes a housing body defining an axial bore arranged to receive a length of pipe including an enlarged end section. A locking member is split into two or more segments configured to lock the enlarged end section within the axial bore when the locking member is secured to the housing body. A segment coupling member is arranged to detachably secure the two or more segments together outside the axial bore and on a housing top of the housing body. At least one sealing member is positionable on the length of pipe and arranged to compress between the enlarged end section and the locking member. A retaining member is arranged to secure the locking member to the housing body such that the locking member fills a gap between the length of the pipe and an opening of the retaining member.

Two conduit gripping devices that are to be used together in a conduit fitting assembly are interconnected or held together as a cartridge or subassembly prior to assembly with fitting components to form a fitting assembly. In a more specific embodiment, one or both of the conduit gripping devices comprises a retaining structure by which the devices are mechanically connected together as a subassembly. For example, in one embodiment a front ferrule and a back ferrule for a tube fitting may be snapped together.

A fluidic coupling includes a compression screw having an axial bore, a threaded portion configured to engage a threaded bore of a coupling body, and a drive surface, a tube extending through the axial bore of the compression screw, the tube including a body and a fluidic channel extending through the body to a sealing end, the body including a pocket formed at the sealing end having a depth, a collet secured to an outer surface of the tube and having a first end configured to receive the drive surface of the compression screw, and a polymer seal having a channel to pass a fluid, the polymer seal including a flange portion and an insertion portion.

A fitting includes first and second fitting components adapted to be joined on a conduit to a first relative axial position to effect a seal between the conduit and a sealing element, sealing the conduit from a non-wetted fitting interior volume at least partially defined by the first and second fitting components. When the first and second fitting components are joined to the first relative axial position, first and second annular surfaces of the fitting axially engage, resulting in resistance to additional axial stroke of the first and second fitting components. At least one of the first and second annular surfaces includes a recess extending from an inner diameter to an outer diameter of the corresponding annular surface, and defining a leak detection port in fluid communication with the fitting interior volume when the first annular surface is in engagement with the second annular surface.

A pressure balancing apparatus can have a compression collar to mate with a component comprising a seal, and a gripper to anchor to a tube and the compression collar. The compression collar is used to apply an axial force to the tube to relieve shear stress on proximate seals. The method can include mating a compression collar to a component comprising a seal, anchoring a gripper to a tube, mating the gripper to the compression collar, and using the compression collar to apply an axial force to the tube.

A fitting assembly includes a tube, a fitting body, a threaded drive nut, and at least one ferrule. An engagement indicator member is adapted to engage a corresponding engagement indicator member for indicating a correct installation of the fitting assembly, the engagement indicator member having a body having a geometry adapted to be rotatably received or non-rotatably received by one of the fitting body or the drive nut.

A fitting assembly having a longitudinal axis including a fitting body having a seat, a threaded drive nut, a tube, a first (rear) ferrule and a second (front) ferrule receivable over the tube, the first (rear) ferrule having a first driven end and a first driving end and defining a first (rear) ferrule length (FFL) therebetween, the second (front) ferrule having a second driven end and a second driving end and defining a second (front) ferrule length (SFL) therebetween, and a seal depth (SD) of the tube defined by a distance between the seat of the fitting body and the second driving end. A surface of the second driven end of the second (front) ferrule is a diametrical surface having a diameter (D.sub.SF). At least one of the following apply:
SFL/SD0.9;
2.7SFL/D.sub.SF2.2; and
SFL/FFL4.0.

Embodiments of a swage connector device and assembly include one or more of a sealing ring, a fastening ring spreader, a retainer grip ring, a cap member and a fastener push ring. The fastener push ring moves axially and engages the fastening ring spreader in order to securely maintain a piping element held within the fitting.

The present invention relates to a connector for piping and, more specifically, to a connector for piping which may prevent a cap nut part from being automatically loosened or locked due to external force, such as an external vibration, a bump, or a shock, that is not deliberately applied, before a connector product is used, and in addition, may prevent an O-ring from being separated from the inside of the connector due to pressing caused by erroneous assembly in a pipe fastening process. To this end, the connector for piping comprises: a body part of a pipe body; the cap nut part; a collet part; and an anti-loosening part which prevents the cap nut part from being loosened or locked due to external force that is not deliberately applied.

A double containment fitting for connection to a double containment tubing system with an outer, secondary containment tubing surrounding an inner, primary tubing. The fitting includes a fitting body defining a central passageway, the fitting body having a center portion disposed between opposed first and second body ports. The fitting body is configured to receive the tubing system into the first body port. The central passageway has a diameter in the first port selected to allow the secondary tubing into the first body port. A connection system mechanically secures the secondary tubing to the first body port.