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Because they are used for domestic water measurement, piston meters, also known as rotary piston or semi-positive displacement meters, are the most common flow measurement devices in the UK and are used for almost all meter sizes up to and including 40 mm (1 + 1 ⁄ 2 in). The piston meter operates on the principle of a piston rotating within a ...
A velocity-type meter measures the velocity of flow through a meter of known internal capacity. The speed of the flow can then be converted into a volume of flow to determine the usage. There are several types of meters that measure water flow velocity, including jet meters (single-jet and multi-jet), turbine meters, propeller meters and mag ...
Smart meters can also be used in communities who are serviced by standpipes to monitor the flow of water and report leakage or dysfunction. [citation needed] Installation of water management devices in Cape Town, South Africa has led to complaints by residents who perceive this intervention as a draconian, unilateral action by the City. [5]
A rotameter is a device that measures the volumetric flow rate of fluid in a closed tube. [1] It belongs to a class of meters called variable-area flowmeters, which measure flow rate by allowing the cross-sectional area the fluid travels through to vary, causing a measurable effect. [2]
Pages in category "Flow meters" ... Water metering This page was last edited on 7 January 2018, at 21:41 (UTC). Text is available under the ...
Schematic view of a flow sensor. An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and ...
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