This disclosure is directed to pipe fittings, systems, and methods. Specifically, this disclosure provides pipe fittings with pairs of circumferential sealing zones and a pressure-testing chamber between the sealing zones. This disclosure also provides pipe fittings with sensors for detecting a breach in one or more sealing zones. The disclosure also provides data trackers for collecting information about the pressure-testing chamber and/or breaches in the sealing zones. Finally, this disclosure provides a dormant power source that becomes powered upon an aqueous breach of one or more sealing zones.

Apparatus, assembly and method for investigating the integrity of a seal and sealant contained in a sealing fitting used in hazardous locations. The apparatus/assembly can include signal transmitters and signal receivers provided on a conduit system on either side of a sealing fitting. The apparatus/assembly can include probes placed on either side of a sealant within a sealing fitting, the probes placed in probe ports provided through the wall of the sealing fitting.

A plug monitoring device configured to monitor a plug to be received by an aperture of a pipe is provided. The plug monitoring device may include: a sensor having an output, wherein the sensor is configured to produce at the output a first signal when a plug is tightly installed in the aperture and a second signal at the output when the plug is not tightly installed in the aperture; and circuitry, comprising a transmitter, coupled to the output of the sensor, wherein the circuitry is configured to transmit a signal comprising status information selectively based on a signal at the output of the sensor.

A coupling for use with a blower unit for detecting leaks in a structure, wherein the coupling is constructed and arranged to attach to a surface of the structure defining an opening and to the blower unit via a sealing gasket, and to allow air flow through the coupling when the blower unit is attached to the coupling and to prevent air flow through the coupling when the blower unit is not attached to the coupling, and wherein the coupling further includes a pressure port defined within a surface of the coupling constructed and arranged to accommodate at least one of a differential pressure gauge fitting or a tube.

Techniques for implementing and/or operating a testing system that includes a pipe segment, which includes tubing having an inner layer that defines a pipe bore, an intermediate layer including electrically conductive material implemented around the inner layer, and an outer layer implemented around the intermediate layer, and a return wire embedded within the tubing. The testing system includes a signal generator that supplies an electrical test signal to the electrically conductive material, a sensor electrically coupled to the return wire, in which the sensor determines a sensor signal indicative of an actual electrical return signal received from the return wire in response to supply of the electrical test signal, and a control sub-system communicatively coupled to the signal generator and the sensor, in which the control sub-system determines an integrity state of a pipeline in which the pipe segment is deployed based at least in part on the sensor signal.

Techniques for implementing and/or operating a testing system that includes a pipe segment, which includes tubing having an inner layer that defines a pipe bore, an intermediate layer including electrically conductive material implemented around the inner layer, and an outer layer implemented around the intermediate layer, and a return wire embedded within the tubing. The testing system includes a signal generator that supplies an electrical test signal to the electrically conductive material, a sensor electrically coupled to the return wire, in which the sensor determines a sensor signal indicative of an actual electrical return signal received from the return wire in response to supply of the electrical test signal, and a control sub-system communicatively coupled to the signal generator and the sensor, in which the control sub-system determines an integrity state of a pipeline in which the pipe segment is deployed based at least in part on the sensor signal.

Techniques for implementing and/or operating a testing system that includes a pipe segment, which includes tubing having an inner layer that defines a pipe bore, an intermediate layer including electrically conductive material implemented around the inner layer, and an outer layer implemented around the intermediate layer, and a return wire embedded within the tubing. The testing system includes a signal generator that supplies an electrical test signal to the electrically conductive material, a sensor electrically coupled to the return wire, in which the sensor determines a sensor signal indicative of an actual electrical return signal received from the return wire in response to supply of the electrical test signal, and a control sub-system communicatively coupled to the signal generator and the sensor, in which the control sub-system determines an integrity state of a pipeline in which the pipe segment is deployed based at least in part on the sensor signal.

A thermowell assembly for use in measuring a temperature of a process fluid includes an elongate thermowell body configured to mount to a process vessel and extend into the process fluid. An elongate bore extends along a length of the thermowell body from a proximal end of the thermowell body proximate a wall of the process vessel to a sealed distal end of the thermowell body positioned in the process fluid. A side bore extends from an exterior of the thermowell assembly to the elongate bore. The side bore is positioned outside of the process vessel. A verification valve includes an inlet coupled to the side bore at the exterior of the thermowell assembly and further includes an outlet.

A gas turbine engine includes a joint and a flexible strip wrapped circumferentially around the joint. The flexible strip includes a lock operable to fasten the flexible strip about the joint. A thermochromatic layer is attached to a surface of the flexible strip and is operable to change color responsive to a change in temperature.

A gas turbine engine includes a joint and a flexible strip wrapped circumferentially around the joint. The flexible strip includes a lock operable to fasten the flexible strip about the joint. A thermochromatic layer is attached to a surface of the flexible strip and is operable to change color responsive to a change in temperature.