What are turbine flowmeters?
The turbine flowmeters can be devided into several types:
1. Woltman
Woltman meters are the first turbine flow meters invented and continue to be used widely in municipal and industrial water applications for the measurement of flow rates of large volumes of water. These meters deliver highly accurate readings as their axis is aligned in line with the direction of flow.
2. Single Jet
Single Jet flowmeters consist of a set of blades set directly in the path of a stream or jet of water within a pipe. The stream or jet is created using an orifice. Such types of meters are mainly used for billing purposes in residential and commercial water supply operations.
3. Multi-jet
Based on the same principle as Single Jet flowmeters, multi-jet flowmeters direct water from multiple orifices onto blades to make them rotate around a central axis. Multi-jet water meters are also used for residential and commercial water supply billing purposes.
4. Compound
A Compound flowmeter is a cross between a regular turbine flowmeter and a positive displacement meter. It has both a turbine and a positive displacement component. When the flow rate is high, it is measured using the rotation speed of the turbine. Low flow rate on the other hand is measured using the displacement component. These types meters are widely used for measuring water flow rates in apartment buildings that have varying flow rates during the day and night.
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