Abstract: System and method for identifying defects in a fluid pipe construction, where the method includes: receiving output signal data of at least two acoustic sensors configured for measuring flow related acoustic measures of the pipe constructions at least at the entrance point and at least one exit points thereof; and processing the received output signal data for identifying one or more types of flow related defects, using ultrasonic spectral range of the received signal data, wherein the identification is carried out by calculating at least the difference between the flow in the entrance and exit points of the pipe construction within the ultrasonic spectral range and comparing the calculated difference with at least two references indicating at least two flow states. The references are indicative of the flow states within the ultrasonic spectral range under normal conditions.

Abstract: System and method for identifying a situation that potentially endangers security in a gas pipe construction. The system includes: at least one detector such as a gas detector for detecting gas leaks and/or tremor detector for detecting endangering quake activity; a processor configured for receiving data from the one or more detectors, analyzing the receive data for identifying an endangering situation to the gas pipe construction; at least one shutoff unit configured for receiving alarm signals and closing at least one valve of the gas pipe construction when an alarm signal is received; and a controller configured for controlling each shutoff unit operation.

Abstract: The present invention provides a hybrid fluid flow meter pressure vessel assembly (1) that includes an interior housing (11) fabricated from plastic, and an exterior ring structure (26), such as unitary exterior ring structure (32), fabricated from metal. Interior housing (11) has sidewalls (14) and an internal chamber (17). The sidewalls (14) of the interior housing (11) have first and second apertures (20, 23) that are each in fluid communication with the internal chamber (17). The exterior ring structure (26, 32) encompasses at least a portion of an exterior (29) of the sidewalls (14) of the interior housing (11), and includes outwardly extending first and second conduits (38, 41; 83, 89) that are in respective fluid communication with the first and second apertures (20, 23) of the interior housing (11).

Abstract: The present invention provides a hybrid fluid flow meter pressure vessel assembly (1) that includes an interior housing (11) fabricated from plastic, and an exterior ring structure (26), such as unitary exterior ring structure (32), fabricated from metal. Interior housing (11) has sidewalls (14) and an internal chamber (17). The sidewalls (14) of the interior housing (11) have first and second apertures (20, 23) that are each in fluid communication with the internal chamber (17). The exterior ring structure (26, 32) encompasses at least a portion of an exterior (29) of the sidewalls (14) of the interior housing (11), and includes outwardly extending first and second conduits (38, 41; 83, 89) that are in respective fluid communication with the first and second apertures (20, 23) of the interior housing (11).

Abstract: The present invention provides a hybrid fluid flow meter pressure vessel assembly (1) that includes an interior housing (11) fabricated from plastic, and an exterior ring structure (26) fabricated from metal. Interior housing (11) has sidewalls (14) and an internal chamber (17). The sidewalls (14) of the interior housing (11) have first and second apertures (20, 23) that are each in fluid communication with the internal chamber (17). The exterior ring structure (26) encompasses at least a portion of an exterior (29) of the sidewalls (14) of the interior housing (11), and includes outwardly extending first and second conduits (38, 41) that are in respective fluid communication with the first and second apertures (20, 23) of the interior housing (11).

Abstract: The present invention provides a hybrid fluid flow meter pressure vessel assembly (1) that includes an interior housing (11) fabricated from plastic, and an exterior ring structure (26) fabricated from metal. Interior housing (11) has sidewalls (14) and an internal chamber (17). The sidewalls (14) of the interior housing (11) have first and second apertures (20, 23) that are each in fluid communication with the internal chamber (17). The exterior ring structure (26) encompasses at least a portion of an exterior (29) of the sidewalls (14) of the interior housing (11), and includes outwardly extending first and second conduits (38, 41) that are in respective fluid communication with the first and second apertures (20, 23) of the interior housing (11).