The disclosure relates to an overpressure encapsulation system for explosion protection, comprising the following: a device (1), in particular a painting robot (1), an overpressure-encapsulated device housing (2) comprising a housing outlet (6) for discharging gas out of the device housing (2), a compressed air system (3, 4) for operating the device (1), said compressed air system (3, 4) being arranged within the device housing (2), a sensor assembly (7, 8, 9) for measuring at least one fluid variable (Q, PI, PA), and an analysis unit (11) which analyzes the fluid variable (Q, PI, PA) measured by the sensor assembly (7, 8, 9), in particular in order to detect a leakage of the device housing (2). The disclosure proposes that, when a leakage of the device housing (2) starts, the analysis unit (11) ascertains a remaining run time until a required maintenance operation or until a system failure on the basis of the measured fluid variable (Q, PI, PA) and/or detects a fault (14, 16) of the compressed air system (3, 4) on the basis of the measured fluid variable (Q, PI, PA). The disclosure further relates to a corresponding operating method.

An integrity monitoring system for a lined pipeline is provided far monitoring the integrity of a polymer liner in a host pipe. Methods and apparatus are described by which a lined pipeline is provided with such an integrity monitoring system. Sensor cable is able to bridge a joint between sections at lined pipe, for example by routing the sensor cable across the joint via a channel in an electrofusion fitting or by connecting successive lengths of sensor cable via pass-throughs in an electrofusion fitting. Advantageously, the sensor cable is disposed within a continuous annulus between linings and host pipes, and the continuous annulus is maintained across pipe joints using electrofusion fittings.

A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes a structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a liquid in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.

A corrosion monitoring device for pipe systems according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The corrosion monitoring device further includes a structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber or for sensing a liquid in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems are also disclosed.

A corrosion monitoring device for pipe systems according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The corrosion monitoring device further includes a structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber or for sensing a liquid in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems are also disclosed.

A fitting for attaching to double wall tubes includes a body, a fitting center port, an outer seal, a tube connection, a pad connection, an inner seal, a groove, and a diagnostic port. The body has a first surface on a first side of the body and a second surface on a second side of the body. The fitting center port extends through the body for passing a primary fluid flow. The tube connection is on the first side of the fitting, and includes an inner connection and an outer connection. The groove is in the second surface surrounding the inner seal and the groove is configured to receive an outer seal. The diagnostic port is in the second surface for transferring a collected fluid through the body to the outer connection.

A diaphragm seal assembly, which includes a measuring instrument, a pressure being transmitted from a process side to be monitored, via an arrangement of two diaphragms having an evacuated intermediate space disposed therebetween, to the measuring instrument, reliably separated from the process side, the fatigue strength of the diaphragm seal assembly under extreme application conditions being improved.

A monitoring system for a multiple-walled fluid system with a first walled region including a flowing or stagnant fluid and at least one second walled region at least partially surrounding the first walled region. The first walled region and the at least one second walled region forming the multiple-walled fluid system, the first walled region being in fluid communication with the at least one second walled region, the at least one second walled region also being in fluid communication with the ambient environment. A data processing device for monitoring at least one pressure difference between a pressure in at least one a control volume and at least one second pressure in the at least one second walled region, a first control volume in fluid connection with the first walled region and the ambient environment. The at least one pressure difference indicating the status of the multiple-walled fluid system.

A method for detecting and preventing leaks of a double-walled container for the storage of poisonous, caustic, irritant and/or combustible media utilizes a double-walled container with an inner wall and an outer wall. A cavity is formed between the inner wall and the outer wall, a positive pressure is generated in the cavity, and in the event of a leak of the inner wall, a gas is fed to the cavity in order to maintain a positive pressure in the cavity. A container system includes an open-loop/closed-loop control device for the open-loop/closed-loop control of a gas throughflow in a line. The system includes a pressure measuring unit for measuring the pressure in the cavity of the double-walled container.

A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.