Liquid Flow Meters and Switches

Water flow meters are used to measure the volume of water used in commercial and residential buildings. The water is supplied to homes and offices via a public water supply system. Water meters may also be used at water sources or throughout the water system to calculate the flow rate of a part of the system. Water flow meters may also measure the flow rate of slurries or fluids in closed pipes. The flow rate of water is measured in cubic metres (m3) or litres on an electronic or mechanical register. Water flow meters can measure hot water, cold water, clean water, dirty water and slurries. Two common methods are used in water flow meter measurement: velocity and displacement flow meters. Each type takes advantage of a variety of technologies. Paddlewheel Sensors The Paddlewheel sensor is a cost effective and most commonly used water flow meter. It may also be used to measure flow rates of water-like fluids. Many paddlewheel sensors are sold with insertion or

A Series of Articles designed to help customers in their liquid flow system applications using Proteus Industries liquid flow products. Q: What are some general tips and guidance on fittings/connector selection and options when using my Proteus paddlewheel  type  flow sensor? A: There are many considerations when selecting fittings for a Proteus  paddlewheel type flow sensor . (Proteus also offers Vortex type flow sensors, which are covered in a separate note.) In this discussion we find that such a seemingly simple issue can become very complicated indeed. The purpose here is to highlight the many nuanced considerations which the customer may then investigate further depending on their level of interest.  Key subjects are: ·          connection/fitting types: NPT, SAE ·          connection form: elbows, straight pipes ·          calibration: fitting’s affects ·          assembly: each fitting type has unique assembly issues ·          adapters: an easy way to s