Series Vh; Introduction; Working Principle; Models - Tecfluid VH Series Instruction Manual

SERIES VH

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INTRODUCTION

The series VH are mechanical flow switches based on the displacement of a paddle by the
force of movement of a flowing liquid. This displacement becomes a detection signal.
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WORKING PRINCIPLE

A liquid flows inside a pipe fast enough to move a paddle, which at the same time moves a
permanent magnet. This magnet acts over a bi-stable SPDT and potential free reed switch,
that changes its state. The magnet-reed switch system is isolated from the liquid.
The flow switching point is positioned between 30º and 45º from the zero position.
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MODELS

VH35 / AISI 316L
VH37 / AISI 316L
VH35 / PTFE
VH37 / PTFE
VH39 / PTFE
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