Series Ad; Introduction; Working Principle - Tecfluid AD Series Instruction Manual

SERIES AD

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INTRODUCTION

The series AD of flow switches and indicators are flowmeters for liquids and gases.
They are very robust instruments prepared to work under extreme conditions.
They can fit local flow rate indication by means of magnetic coupling, with scales calibrated
in l/h, m /h, kg/h, t/h, %, etc.
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They can fit switches or electronic transmitters that allow to detect a specific flow rate and
provide a flow rate signal to a remote device.
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WORKING PRINCIPLE

A spring C keeps a calibrated disc B at rest. When a fluid flows at a certain velocity, it
pushes the disc B, forcing its displacement to an equilibrium point.
The distance covered by B depends on:
The equilibrium between the forces F and that generated by C defines the position of the
calibrated disc B, equivalent to the flow rate.
The calibrated disc B has a magnet M. The magnetic field acts on the limit switches and/or
the local indicator.
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The force of the fluid flow F.
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The ratio of the areas A and B.
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The opposing force of the spring C.
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