A portable apparatus that can be temporarily attached to plumbing angle stop valves and the like, for the purposes of: (i) providing a controlled supply of water for repair and construction operations in a building; and (ii) testing for leaks in plumbing systems. This invention consists of the following components as depicted in FIGS. 1 through 4. Control unit consists of manifold interconnected with valve. Gauge is mounted into gauge port. Inlet pipe is attached to inlet port via matching threaded ends. Posterior end of inlet hose connects to inlet pipe via supply fitting. Anterior end or inlet hose can be attached onto a plumbing angle stop valve via supply fitting; said fitting has circumferential finger grips to facilitate attachment/removal without tools. Outlet port has outlet pipe mounted via matching threaded ends; said pipe can be fabricated in a straight or curved configuration. Quick-disconnect snap coupler can be installed between inlet pipe and inlet fitting as an alternate connection means. Quick-disconnect snap coupler can also be installed between outlet pipe and outlet fitting as an alternate connection means. To use the device, all components are interconnected as described and valve handle is rotated to the closed position. Supply fitting is attached to outlet of closed stop valve. Opening stop valve pressurizes manifold, allowing plumbing water pressure measurement via the gauge. Opening valve handle allows water to flow through device and exit end fitting. Garden hose or implements can be attached to end fitting to extend range of supplied water or employ task-specific tools.

A coupling system for plumbing applications including stub-ups in a poured slab. The coupling system includes a coupler and a cap. The coupler provides a glue-hub that is couplable to a stub-up. An opposite end of the coupler is enclosed by a knock-out disc that seals the end of the stub-up for pressure testing. A second glue-hub is provided beneath the knock-out disc. The cap includes a cap plate enclosing a top end thereof and is height adjustable on the coupler. A thermal expansion gap between the slab and the stub-up is provided by a sleeve positionable around the cap. The cap plate and the knock-out disc are “knocked out” to enable connection with the plumbing system and are sized to resist falling into the stub-up. An air purging valve may be installed in the coupler for pressure testing prior to removing the knock-out discs in the cap and coupler.

A processor of a sensor device performs measurement processing by one or a plurality of sensors and transmission processing of sensor data generated by the measurement processing. The sensor device includes a processing routine table that stores a processing routine configured to include, corresponding to an identifier for identifying processing performed by a processor, a type of the processing, an execution trigger of the processing, and trigger information that prescribes a trigger for transmitting the sensor data. The processor controls processing in a processing routine of the processing routine table, based on trigger information, so that the sensor data subjected to measurement processing is immediately transmitted, or temporarily stored in a buffer and transmitted after a predetermined time.

Assembly (10) for measuring a leakage in a drinking water supply system, with a backflow preventer (12), wherein the backflow preventer (12) is opened if there is a pressure drop caused by drinking water consumption downstream of the backflow preventer (12) as viewed in a flow direction of the drinking water, and wherein the backflow preventer (12) is closed if there is no pressure drop caused by drinking water consumption downstream of the backflow preventer (12), as viewed in the flow direction of the drinking water, with a volume flow meter (13) connected in parallel to the backflow preventer (12) and via which, if the backflow preventer (12) is closed, a leakage flow of drinking water caused by a leakage in the drinking water supply system downstream of the backflow preventer (12) can be routed, wherein the volume flow meter (13) is integrated into a bypass (14) to the backflow preventer (12).

A leak detection system for plumbing fixtures may include a dual channel system (700) having two channels of water flow to measure fluid flow that is both intentional and accidental. A disclosed embodiment may include a body (710) that is sometimes fastened to a top plate (715) sometimes fastened with socket head cap screws (717). The dual fluid channels may comprise a lower default or first flow path (790). Water flowing though the lower or default path may pass through a paddle wheel assembly (760) and paddle wheel (762) wherein flow rate may be measured by a myriad of systems including magnets or other sensors deposed on the distal ends of the paddle wheel spokes. A leak detection system may also include a single channel system (800) with a flap system. Disclosed systems may include other types of leak measuring devices.

The invention provides secure systems, methods and computer program products for monitoring fluid distribution within a fluid distribution network, and for validating received fluid distribution data, identifying unauthorized losses, and raising alerts in response to detection of unauthorized losses. The invention relies on a plurality of sensors disposed within the fluid distribution network, data received from said sensors, and validation and reconciliation of data based on a distributed ledger system, for detecting instances of unauthorized fluid loss.

The invention relates to an arrangement for detecting and locating a leakage in a water pipe system, having a water treatment system, having a pump, having a supply line and a drain, having at least one circulation line connected to the supply line and the drain, having at least one inlet valve, at least one outlet valve and at least one pressure sensor in at least one circulation line and/or the supply line and the drain, wherein the inlet valve and the outlet valve are electrically controllable, having control means for controlling the inlet valves and the outlet valves, having detection means for detecting the timewise development of the measured values of the at least one pressure sensor, with evaluation means for evaluating the timewise development of the pressure change and for comparing the amount of the pressure change with a limit value, and with output means for the output of a leakage indicating indication signal if the amount of the pressure change exceeds the limit value. This arrangement solves the technical problem of improving the detection and, if necessary, location of a leakage.

A fluid leakage control apparatus has at least one primary sensor (3), and at least one secondary sensor (5) connected together to communicate with a computer processor unit (13), to open at least one fluid flow valve (such as a solenoid valve), through which fluid such as water or gas can flow. It can be made using flow sensors connected to one or more of motion and sound sensors, and powered by AC mains power or batteries, to form a communication network with a computer or microcomputer. The apparatus may be installed along domestic or industrial piping systems, to monitor and prevent water wastage in the event of a burst pipe by closing off a mains valve (2). Also disclosed is a method of fluid leakage control to monitor sensors to ascertain a burst state, and close off a mains valve (2), preventing fluid wastage.

A water management system effective for managing and metering water usage and detecting and reducing water leaks is described herein. The water management system can detect a leak when a volume of water flow or change in water pressure detected by a water meter of the system is uncharacteristic for a given day and time of day at the node. Upon detecting the leak, the system alerts the user, and in some situations, remotely shuts off a water supply to preemptively address a water leakage issue.

A method for acoustic leakage detection in a fluid pipe network (1) uses at least one ultrasonic flow meter (13) installed at a pipe (15, 17). The pipe connects a consumer site (3) to the fluid pipe network. The method includes detecting at least one sound wave traveling along the pipe and/or along fluid within the pipe from a sound source to the at least one ultrasonic flow meter, determining the traveling direction of at least one of the at least one sound wave, interpreting a sound wave of the at least one sound wave as a leakage sound candidate if the determined traveling direction of said sound wave is towards the consumer site, and interpreting a sound wave of the at least one sound wave as a background noise if the determined traveling direction of said sound wave is away from the consumer site.