by Jason Schoenbaechler • Sep 8, 2018
A venturi allows you to measure flow by comparing 2 different pressure values. These pressures are measured at points we call "taps". The tap is a hole in the wall of the venturi, the "High Pressure Tap" is located near the inlet of the venturi and the "Low Pressure Tap" is in the throat of the venturi.
As the diameter of the venturi gets smaller the fluid must accelerate to maintain the same rate. This acceleration…
by Jason Schoenbaechler • Sep 5, 2018
When designed and installed correctly, a venturi flow meter will provide you with years of reliable flow measurement. It doesn't matter if you're a design engineer, contractor, or plant in plant maintenance, understanding what a proper venturi flow meter installation should look like is something you should know.
We won't go in depth on all the theory and calculations here, but a basic understanding of how a venturi…
by Jason Schoenbaechler • Sep 2, 2018
In recent years magnetic flow meters have replaced existing venturi in plants and in specifications. The reason for this is because they offer a lower entry cost and claim to be maintenance free. While this may be true, it doesn't tell the whole story.
There is no dispute that the purchase price of a magmeter is lower than that of a cast iron venturi. Now consider that many of the wastewater treatment plants built in…