Apparatus and methods for improved hot water flushing of a water supply system.

A method and system for measuring, controlling, and recording flushing of a water distribution system (WDS) comprising each portion or subject WDS piping, by measuring, controlling and recording the selected flow rate ranges of water into and out of. The selected volume of water utilized into and out of the WDS piping can then be measured, controlled and recorded. The flow rate and volume of water into and out of the WDS piping can then be selected for each maintenance event protocol and used to determine the condition of the WDS.

A pipe rehabilitation system and/or robot can be used inside a pipe to measure characteristics of branch conduits, install plugs into branch conduits before the pipe is lined with a liner, remove portions of plugs and liners after lining to restore fluid communication between the pipe and branch conduits, and/or install fittings into the branch conduits to connect the liner to the branch conduits. A probe can measure characteristics of a branch conduit. A tool can install plugs and/or fittings into the branch conduits. A linkage can connect a tool to a robotic tractor so that the connected elements can navigate through a main pipe. A visualization system can aid in aligning a robot with a branch conduit. Height-adjustable braces can support robotic tools in a pipe. A plug can include integrated locating features and/or movable parts that enable expanding the plug to seal with the branch conduit.

A trench-less plug assembly having a fluid release element, further including: a top retaining ring, a bottom retaining ring, a plurality of rods vertically connecting the top retaining ring to the bottom retaining ring. A retaining plug is adapted to traverse vertically along the plurality of rods, and a main fitting adapted for receiving the bottom retaining ring. A gasket is disposed between the main fitting and the retaining plug. The plurality of rods engage the retaining plug with threads, whereby the retaining plug is positioned vertically between the top retaining ring and the bottom retaining ring by rotational movement of the retaining plug. The main fitting is adapted to attach to a main pipeline, and the main fitting is adapted to receive a riser enclosing the fluid release element. In one example, the main fitting attaches to a main pipeline using a saddle.

A flushing station is provided. The flushing station includes a connection piece for a hot water pipe, a connection piece for a cold water pipe, a collecting tank with a siphon for draining the water, pipes at the connection pieces which conduct the water from the connection pieces into the collecting tank at least one sensor per pipe a control unit connected to the sensor, a valve actuatable in the pipes, wherein the control unit is coupled to the actuatable valve and the actuatable valve can be opened by the control unit for flushing the hot or cold water pipe. According to the invention, a flow restrictor and a flow straightener are integrated in each of the pipes.

Example aspects of a remote-operated flushing system and a method of operating a flushing system are disclosed. The remote-operated flushing system can comprise a fluid routing assembly comprising a valve, the valve configurable in an open configuration, wherein fluid is permitted to flow through the fluid routing assembly, and a closed configuration, wherein the fluid is prohibited from flowing through the fluid routing assembly; a control device configured to actuate the valve between the open configuration and closed configuration; a remote operation device wirelessly connected to the control device and configured to remotely operate the control device to control the actuation of the valve between the open configuration and closed configuration; and a sensor configured to detect a fluid property of the fluid within the fluid routing assembly, wherein the control device is configured to wirelessly send a signal representative of the fluid property detected by the sensor.

A drinking water supply system with a drinking water line system includes multiple drinking water removal points connected to the drinking water line system, at least one sensor, which is designed to determine measurement values, and a central controller, which is designed to receive and evaluate the measurement values determined by the at least one sensor. The central controller is designed to control the control elements depending on the received measurement values. The drinking water line system has a drinking water line section for supplying drinking water to multiple drinking water removal points. A volumetric flow rate sensor is provided in order to measure the volumetric flow rate of the water in the drinking water line section and/or a pressure sensor is provided in order to measure the water pressure in the drinking water line section. The controller is designed to carry out a measure.

A system for maintaining conduits and pipes after their installation into a pipeline system used to transport material in a fluid or flowable form. The system includes a maintenance tool adopted for use inside the pipe, an umbilical attached to the maintenance tool for pulling the tool through the pipe; and a pluralities of bearings positioned around the umbilical in order to allow the tool to be pulled through the pipe around bends and turns in the pipe.

A trench-less plug assembly having a fluid release element, further including: a top retaining ring, a bottom retaining ring, a plurality of rods vertically connecting the top retaining ring to the bottom retaining ring. A retaining plug is adapted to traverse vertically along the plurality of rods, and a main fitting adapted for receiving the bottom retaining ring. A gasket is disposed between the main fitting and the retaining plug. The plurality of rods engage the retaining plug with threads, whereby the retaining plug is positioned vertically between the top retaining ring and the bottom retaining ring by rotational movement of the retaining plug. The main fitting is adapted to attach to a main pipeline, and the main fitting is adapted to receive a riser enclosing the fluid release element. In one example, the main fitting attaches to a main pipeline using a saddle.

The invention relates to a device (2) for automatically flushing liquid lines, in particular drinking water lines, with at least one connection (4) for a water conduit, with at least one connection (6) for a wastewater conduit, and with a flushing valve (8) which is arranged between the connections for the water conduit and wastewater conduit. The object of providing a device for automatic flushing that allows a flushing behaviour which is better tailored to the conditions is achieved in that the flushing valve (8) comprises a multiple valve with parallel valves (10). The invention further relates to a system of water lines and to a method for automatically flushing water lines using a device according to the invention.