Connecting device (1), comprising: •—a bush (2), •—an end piece (6) which can be inserted into the bush (2) and is provided with a collar (7), •—a locking device (8) comprising an annular lock (9) which is radially movable inside the bush (2) and a return member (10) for returning the lock (9) to a locked position for retaining the collar (7) of the end piece (6) beyond the lock (9), •—a visual locking indicator (11) which is radially movable between an extended position of the bush (2) and a retracted position and is provided with tabs (12) for returning to the extended position. When the collar (7) of the end piece (6) is inserted beyond the lock (9), the indicator (11), which has the shape of a ring (110), surrounds the collar (7) of the end piece (6) retaining the indicator (11) in the retracted position and the tabs (12) for returning the indicator (11) are axially offset from the ring (110) with respect to direction of insertion of the end piece (6) in the bush (2).

A fitting assembly includes a pipe fitting defining a fastener opening and a retaining groove; and an indicator assembly configurable in a loosened configuration and a tightened configuration, the indicator assembly comprising: a fastener defining a first fastener portion and a second fastener portion, the second fastener portion extending through the fastener opening; and a positive installation indicator oriented within the retaining groove between the fastener opening and the first fastener portion; wherein, in the tightened configuration, the positive installation indicator is compressed between the pipe fitting and the first fastener portion and extrudes at least partially out of the retaining groove, and in the loosened configuration, the positive installation indicator is substantially hidden within the retaining groove by the first fastener portion.

A press fitting device, components and method provide one or more indicators to provide a visual indication that the fitting has been properly pressed around a tube and that the correct amount of pressure has been provided to create a permanent seal. In embodiments, a sealing ring and a latching band are retained within a main body component of the fitting and the latching band can be formed with a radially inwardly extending latch that extends through an opening in the sealing ring.

A connection verifier, including a collar, a circuit board non-rotatably connected to the collar, the circuit board including at least one terminal, a switch rotatably connected to the collar and arranged to contact the at least one terminal, the switch including at least one finger extending in a first axial direction, and an indication device arranged to activate when the switch contacts the at least one terminal.

A system for sensing a physical property of a medium inside a conduit includes a radio frequency identification (RFID) reader arranged to transmit electromagnetic signals in at least one radio frequency. An RFID tag receives the least one radio frequency and exchanges the received radio frequency to electrical energy powering the RFID tag. An included sensor electrically connected to the RFID tag receives the electrical energy from the RFID tag and powers the sensor to obtain measurement data of at least one physical property of the medium and transmit the measurement data to the RFID tag. The RFID tag transmits the measurement data to the RFID reader using the at least one radio frequency.

A preassembled combination connects a captured pipe element to a second pipe element. First and second segments are connected end to end surrounding a central space for axially receiving the second pipe element. The segments are configured to be drawn toward one another and into engagement with the pipe elements. An annular body forms the captured pipe element. An end face of the captured pipe element is retained within the central space by engagement between a bead projecting from a sealing surface of the captured pipe element and the coupling assembly.

A quick connector assembly includes a male adapter portion (24) having an end and a groove (62) formed therein spaced from the end. The male adapter portion has a through bore. A female housing portion (22) has a body having a through bore generally concentrically aligned with the male adapter portion through bore. A ring (26) cooperates with the female housing portion and the male adapter portion. The ring is in a first position when the male adapter is engaged with the female housing and a second position, different from the first position, when the male adapter is other than engaged with the female housing. The first and second positions can be visually different from one another.

A method of making-up tubular string components can include inputting to an image processor image data output from at least one camera, the image processor in response detecting positions of a tubular and a mark on another tubular, threading the tubulars with each other while inputting position data from the image processor to a controller, and the controller terminating the threading in response to the position of the mark relative to the position of the first tubular being within a predetermined range. Another method of making-up tubular string components can include, in response to inputting image data to an image processor, the image processor detecting longitudinal positions of two tubulars, threading the tubulars with each other, and a controller terminating the threading in response to the longitudinal position of one tubular relative to the longitudinal position of the other tubular being within a predetermined range.

A releasable plug connection with a tubular plug-in part, and with a sleeve-shaped receiving part which has an insertion opening through which the plug-in part is insertable into a sleeve interior of the receiving part. At least one annular groove is provided on the inner circumference of the receiving part, in which an annular seal is arranged which provides sealing in the annular gap between the inner circumference of the receiving part and the outer circumference of the plug-in part. The insertion opening opens out in a first interior portion of the sleeve interior that is configured as a cross-sectional widening in relation to an adjacent second interior portion and is delimited by an annular shoulder, and an insertion sleeve is insertable in the first interior portion of the sleeve interior, its peripheral edge directed towards the annular shoulder being spaced apart from the annular shoulder to form the annular groove between the peripheral edge of the insertion sleeve and the annular shoulder.