Flow switch type IV-VA Flow Switches-Product-Eletta (Beijing) Instruments Co., Ltd

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Flow switch type IV

The Flow Switch is designed to give an initial alarm at a very low flow and
still capable of allowing a high full liquid flow passing through when pumps
or valves are activated by the micro switch. This is since the Flow Switch is de-
signed with a variable flow passage area which increases as the liquid flow
rate increases. It is also equipped with an internal rubber diaphragm to make
the switch even more sensitive atlow liquid flows.

Product Introduction

Rugged and sturdy design
Insensitive to magnetic fields
Simple and economical installation
One adjustable SPDT micro switch for flow alarm
Can be mounted horizontally or vertically
Can be used in any liquid
Function based on flow and not affected by the static line pressure

Technical specifications

Flow range: 0 –300 l/min
Min switch point: 3 l/min
Max. switch point: 70 l/min
Wetted materials: Copper alloy and stainless steel 316
Rubber parts: EPDM and Fluorinated rubber (FPM) as option
Max. pressure: 25 bar (363 PSI)
Process connection: DN40 (BSP 1 1/2”) standard and DN32 (BSP 11/4”) or DN25 (BSP 1”) with a reducing nipple (option)
Alarm: one (1) micro switch contact, adjustable to trip within the above mentioned min/max switch point