Procedure and Functioning of Paddlewheel Flow Meter

A paddlewheel flow meter, also called a peloton flow meter, insertion flowmeter, or inline flowmeter is a robust mechanical flow meter. Most of these flow meters are fitted with a digital screen to display flow. The flow meters consist of three basic parts vital to giving an accurate flow rate: a pipe fitting, a display or controller, and a paddlewheel sensor. 

Paddlewheel Sensor

A paddlewheel sensor is a tool that interacts with the fluid in the pipe fitting to gauge flow rate. It is made up of an impeller or free rotating wheel fixed by magnets and an electric sensor and at right angles to the liquid’s flow.

 About half of the paddlewheel extends into the flow stream to be put in motion by the flowing liquid—magnets in the sensor spin past the electric sensor. The magnets create an electric signal that’s detected by the electric sensor. The paddlewheel is usually made of a docile material that does not react with the fluid to cause corrosion.

The Pipe Fitting

A paddlewheel flow meter is an intrusive meter; hence the meter has to interact with the fluid that goes through the meter. The peloton meter is meant to be inserted in a pipe fitting in an inline or insertion style. The fitting is found in various use ranges to fit all pipes and systems.

The pipe fitting can be either made of PVDF, stainless steel, and plastic (PPP). Like the turbine flow meters, this meter needs a straight pipe to insert the sensor.

Display Controller

The display controller is the device on the flow meter that shows the flow rate. This device picks the electric sensor signal and shows it as flow total value or flow rate.

 The flow meter works on a preset flow rate, so when there is excess flow, a signal is sent from the display to open or close valves, start or stop pumps, or trip high and low flow rate alarms in the flow stream.

Working Laws of the Flow Meter

The Flow Meter relies on electromagnetic conduction to get an accurate system flow rate. As the fluid moves in the setup and gets to the pipe fitting, it moves the paddlewheel. The paddlewheel has magnets that spin and creates an electric signal. The electric signal is equal to the flow rate. 

The display converts the signal from an electric signal to a digital flow rate. The display controller is also attached to pumps, valves, and alarms that it controls to keep the flow rate a set rate.

Pros of the Flow Meter

  • There is a wide range of flow meters, but here are reasons you must settle for a Pelton flow meter.
  • The flow meter is cheap and offers high accuracy.
  • Easy to install and operate, reducing the cost of operation
  • There is no pressure drop hence making it ideal for gravity flows.

Final Word

The paddlewheel flow meter is versatile and can be used on wide uses. The meter relies on simple applications while having a low cost to the final user. The meters can work on a wide scale of clean fluids.

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