IF…VE – ADJUSTABLE VISUAL AND ELECTRIC FLOW SWITCHES

ADJUSTABLE ELECTRIC FLOW INDICATORS AND SWITCHES WITH OR WITHOUT VISUAL INDICATION TYPE IF

USE 

The Elettrotec flow switches and indicators are generally used to monitor the flow of a fluid or a gas in a circuit and have a simple reading of the flow or, when equipped with contact, send an electric alarm signal to a remote board in case of flow decreasing under the set value.

They are normally used in circulation plants, fuel and water outlets, oil and gas systems as well as in cooling circuits, heat pumps, welding machines, heaters, transformers, heat exchangers, compressors, food, chemical and pharmaceutical industry.

OPERATION 

The electric and adjustable flow switches with visual indication have been designed with a rugged body, two connection flanges, a shutter with permanent magnet, a Pirex tube marked with a graduated scale, a guide tube of the shutter with variable flow rate areas, seals, a cursor with magnetic contacts and a connector for circuitry.

Liquids or gases flow upwards from the bottom of the device, fixed in the upright position, pushing the shutter along the guide tube with variable areas and setting it at a flow rate value readable on the graduated scale marked on the glass tube by the red index line. In this way it is possible to read the instant flow in the circuit.

The shutter, plunged in the fluid, can freely move without mechanical friction and, thanks to the magnetic field produced by the magnet housed inside, let operate the electric alarm contact. By means of the movable cursor, equipped with a reference index, the contact can be placed by the flow rate to be checked, shown on the label at the side. The cursor movement must be fixed by turning the dowel under the connector.

Not to be used with fluids containing particulates.

FEATURES 

Highest operation safety thanks to the frictionless parts in movement. Adjustment of the intervention point at any value indicated on the scale. Rugged construction.

Not affected by fluid pressure.

COMPONENTS 

Anodized light alloy, nickel-plated brass or 304 stainless steel body and flange, chromium-plated brass or 304 stainless steel tube and shutter with permanent magnet, Pirex glass tube with graduated scale, nitrile rubber, FKM or EPDM seal gaskets.

CONVERSION TABLE OF WATER/AIR FLOW RATE RELATIVE TO IF...V-VE-E FLOW INDICATORS AND SWITCHES

SPRINGS TO BE USED WITH FLUIDS MORE VISCOUS THAN WATER

FLOW INDICATORS AND SWITCHES MUST BE MOUNTED AT LEAST 50mm FAR FROM IRON PARTS OR WALLS AND OTHER POSSIBLE INTERACTING MAGNETIC FIELD.