A fluid supply monitoring system includes a fluid sensor configured to identify a flow rate of a fluid through a supply line. The system comprises a valve configured to control the flow rate through the supply line and a pressure sensor configured to detect a fluid pressure. A controller is configured to receive the flow rate data and identify fluid consumption from the supply line based on the flow rate. The controller is further configured to compare the fluid consumption of a usage event to one of a time limit and a volume limit. In response to the fluid consumption exceeding the time limit or the volume limit, the controller controls the valve to a closed position and identifies a potential fluid leak. With the valve in the closed position, the controller processes a verification procedure that identifies whether the potential fluid leak is an actual fluid leak.

In one aspect of the invention for which protection is sought there is provided an apparatus (1) for providing access to pressurised pipes (24) and the like, the apparatus comprising: a body member (2) having attachment means for attachment of the body member to a pipe or vessel or a fitting coupled to a pipe or vessel, the body member having an internal barrel (6) that may be provided in fluid communication with the pipe or vessel or fitting when the body member is attached to the pipe or vessel or fitting; a hollow piston (3) slidable axially within the internal barrel, the apparatus being configured such that when an internal volume of the piston is pressurised by a fluid from the pipe or vessel a force exerted by pressurised fluid on the piston in a first axial direction is opposed by a force exerted by pressurised fluid on a counter-pressure portion (9, 10) of the piston, the apparatus being provided with a conduit orifice (15) adapted to allow a conduit (16) to be disposed therethrough so as to pass into the apparatus to an interior of the piston, wherein a pressure tight seal (15s) is formed between the conduit and conduit orifice, the apparatus being configured to allow a first end (3a) of the piston to be translated axially into the pipe, vessel or fitting, the piston having a port (21) arranged to allow egress of the conduit from the piston into the pipe, vessel or fitting.

An apparatus for pressure testing a plumbing system, including a fluid pump; a conduit assembly coupled to the fluid pump, a control system communicatively coupled to the conduit assembly to operate the conduit assembly according to a preset operating schedule to acquire a set of pressure data; and an input-output communications device communicatively coupled to the control system to receive a set of pressure data and provide the set of pressure data to a user.

Aspects and techniques of the present disclosure relate to a process of evaluating a pressurized fluid system including an automatic bleed valve arrangement therein for undesirable air leakage by diagnostically operating the automatic bleed valve arrangement. The disclosure also relates to methods of evaluating air presence in a pressurized fluid system sufficient to warrant bleed valve operation. Further, apparatus and features thereof are characterized.

An infrastructure and methods for the analysis of flow in pipe systems. In a preferred form, the infrastructure and methods account for energy status of a sensor device and wear cost functions. The infrastructure comprises a controller and a plurality of sensor devices coupled to the pipe system to collect measurements related to one or more of the following: vibration, magnetic field, fluid pressure, temperature, humidity, chemical composition of the fluid, fluid flow or fluid throughput. The controller has access to a database containing one or both of—(i) current energy status of a sensor device and/or (ii) a cost allocation relating to use of a sensor device and assigns workloads using energy status and/or cost.

The present invention relates to a system for detecting the watertightness or flooding of the annulus of flexible lines from a connector, comprising: an assembly of plunger (3) and cylinder (4) that are connected by a rod to a chamber (19) that acts as a pilot valve, connected directly to the outlet of a safety valve of a connector of the flexible line, in which same are fitted using a sealing system (6). The system is operated by commands sent to the ROV (2) that has an arm (21) and that controls the system using a handle (9). The present invention also describes the operating method of the device and how the obtained results lead to a preprogrammed conclusion regarding the watertightness (or otherwise) of the annulus. Other methods are provided to obtain fluid samples in the annulus for subsequent analysis and enable the safety valve to be removed from the connectors.

A method of detecting a leakage of a coolant in a battery cooling device for a vehicle includes: receiving, by a controller, a first pressure value from a first pressure sensor configured to detect a pressure in a coolant pipe; and determining, by the controller, whether the coolant leaks in the coolant pipe based on the first pressure value.

A method of detecting a leakage of a coolant in a battery cooling device for a vehicle includes: receiving, by a controller, a first pressure value from a first pressure sensor configured to detect a pressure in a coolant pipe; and determining, by the controller, whether the coolant leaks in the coolant pipe based on the first pressure value.

A built-in calibration sub-system of, or an auxiliary device to be used with, a normally closed water supply control system of the type that uses a single pressure sensor and a pressure decay versus time measurement to make volumetric flow determinations for water supply control purposes, including leak detection and flood risk mitigation is provided. The present disclosure provides a system that uses an auxiliary electrically actuated valve and an orifice to cause a controlled flow of water to discharge from a plumbing network over a pre-determined pressure range such that the normally closed water supply control system's microprocessor can calculate the calibration factor it needs that relates change in pressure over time to volumetric flow rate. Methods of calibration and testing of the leak detection feature of a normally closed water supply control system are also provided.

A pipe diagnosis apparatus 10 includes a simulation execution unit 11 that simulates vibrations of pressure in a pipe included in piping equipment to be diagnosed, based on pipe information for specifying a configuration of the piping equipment, and a stress analysis unit 12 that calculates stress that occurs in a pipe included in the piping equipment, based on pressure vibrations acquired through simulation.