Goods & Services

Valves being parts of machines Encoders; Flow meters; Interfaces for detectors; Radio-frequency identification (RFID) readers; Water meters

Abstract

A remote water meter monitoring system is provided. A mesh network-type transceiver unit is coupled to a water meter housing having a water counting mechanism inside to transmit water consumption information as well as other sensor information, such as backflow detection, water pressure, and water metrics (e.g., residual chlorine and temperature) to a central server system via a bridge device and a corresponding mesh network. Mechanical energy from the water flowing through the water meter housing is converted to electrical energy via an energy conversion unit. An electrically powered shut off valve is remote addressable via the transceiver unit.

IPC Classes  ?

• G08C 19/00 - Electric signal transmission systems

Abstract

A controller (8) for a pilot valve (102) which adjusts the output pressure of a pressure reducing valve (44) supplying water to a consumer region (3). With the aim of reducing output pressure whilst still providing a minimum required pressure at a critical point (CP) in the region, the controller adjusts the output pressure in accordance with the flow rate. The controller includes a clock (22) and the relationship between the required output pressure and the measured flow rate is time dependent. Parameters which define the relationship are supplied to the controller (8) from a remote data processing system (13) which analyses flow rate and output pressure data transmitted from the controller, and also pressure data from a remote sensor (10) at the critical point. At intervals, the controller (8) establishes a wireless connection with the remote system (13), to transmit logged data, and to receive parameters covering a period of time which is greater than the interval between communication sessions.

IPC Classes  ?

• G05D 16/20 - Control of fluid pressure characterised by the use of electric means
• G05D 7/06 - Control of flow characterised by the use of electric means
• E03B 1/00 - Methods or layout of installations for water supply
• E03B 7/07 - Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
• G05D 16/16 - Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid

Abstract

A pilot valve (2) for controlling operation of a hydraulically-actuated pressure reducing valve, the pilot valve including a housing (4), and a first valve member (15) mounted in the housing for longitudinal movement along an axis relative to the housing and to a second valve member (22) in response to the outlet pressure of the pressure reducing valve. The first valve member is provided with an aperture (20) and the second valve member comprises a closure portion which varies the effective flow cross section of the aperture in accordance with relative longitudinal movement between the first and second valve members. An adjuster (26) controls the relative rotational position of the first and second valve members, the closure portion having a profile such that relative rotation between the first and second valve members causes the closure portion to vary the effective flow cross section of the aperture (20).

IPC Classes  ?

• G05D 16/20 - Control of fluid pressure characterised by the use of electric means
• G05D 16/16 - Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid

Goods & Services

Water meter registers

Goods & Services

FLUID METERS