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Flow Switch

27 Products
Thermal Dispersion Flow Switches

The FSW-6000/7000-Series are thermal flow switch monitors designed to monitor flow status and also used to detect level of liquids, air and gas with visual indication of flow

Product Number Insertion Length Supply Voltage
FSW-7111
C$1,673.04
3  In Stock
1.375 in
24 Vdc
FSW-6212
C$1,673.04
Available
in 6 weeks
2 in
85 to 240 Vac
FSW-7112
C$1,388.54
Available
in 6 weeks
2 in
24 Vdc
FSW-7113
C$1,654.36
Available
in 6 weeks
3 in
24 Vdc
Thermal Dispersion Flow Switches for Use With Gases

The FST-320-Series thermal dispersion flow switches, especially designed for use with gases, sense changes in the heat transfer characteristics of the gases.

Product Number Enclosure Material Pipe Size, Max
FST-321-SPST
C$466.65
Available
in 7 weeks
Polypropylene, PVDF
1.5 in
FST-322-SPST
C$750.64
1  In Stock
PVDF
1.5 in
FST-323-SPST
C$487.58
Available
in 2 weeks
Polypropylene, PVDF
12 in
FST-324-SPST
C$771.48
Available
in 8 weeks
PVDF
12 in
Economical Brass Flow Switches

The FSW301 flow switch comprises a paddle system with a permanent magnet attached. This construction allows a useful life of up to 100,000,000 switching cycles.

Product Number Process Connection Size Process Connection Type Volumetric Flow Rate, Max Volumetric Flow Rate, Min
FSW301
C$472.41
2  In Stock
1/2 in
NPT Male
4.7 GPM
4 GPM
FSW302
C$556.91
7  In Stock
1/2 in
NPT Female
1.1 GPM
0.9 GPM
FSW303
C$556.91
3  In Stock
3/4 in
NPT Female
2.4 GPM
1.8 GPM
FSW304
C$556.91
5  In Stock
1 in
NPT Female
4.4 GPM
3.5 GPM
FSW301-G
C$338.47
Available
in 11 weeks
1/2 in
G Thread Male
4.7 GPM
4 GPM
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Compact Fan and Filter Fan Air Flow Switch

The FSW800B-Series air-flow monitor provides a simple but reliable alternative to indicate positive or negative air flow of fans.

Product Number Material Construction Option Switch Type
FSW801B
On Temporary Hold
Mounting Clip and Clamp
SPST NC Reed
FSW802B
On Temporary Hold
Mounting Clip and Clamp
SPST NO Reed
FSW803B
On Temporary Hold
80 x 80 mm Finger Guard
SPST NC Reed
FSW804B
C$111.23
11  In Stock
80 x 80 mm Finger Guard
SPST NO Reed
FSW807B
On Temporary Hold
120 x 120 mm Finger Guard
SPST NC Reed
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Flow Switch With Compact Relay Controller

This switch package offers a complete solution for flow or no-flow switching in pipes or ducting up to 12'. The compact relay controller actuates valves, pumps, or blowers.

Product Number Pipe Size, Max
FST-211-R
C$1,282.29
Available
in 8 weeks
1.5 in
FST-221-R
C$1,182.28
Available
in 8 weeks
12 in
Non-magnetic Industrial Flow Switches - Ideal for Rusty Water

The FSW-30A flow switches are supplied with six orifices to provide 6 overlapping flow ranges from 0.12 to 8.0 GPM for water. Wetted Parts: brass, 316 SS, phosphor bronze.

Product Number Volumetric Flow Rate, Max Volumetric Flow Rate, Min
FSW-30A
C$1,106.66
Available
in 5 weeks
8 GPM
0.12 GPM
FSW-31A
C$908.20
3  In Stock
70 GPM
6 GPM
FSW-32A
C$772.48
3  In Stock
8 GPM
4 GPM
Liquid Flow Transmitter and Switch with Visual Indication

The FSW-9000-Series is a flow switch monitor that measures the velocity of the flow. The-Series provides two output options: a 4 to 20mA analog output and a PNP/NPN output.

Product Number Electrical Connection Enclosure Material Process Connection Size Process Connection Type
FSCN-91
C$1,166.76
Available
in 6 weeks
N/A
Glass Filled Nylon
1/2 in
NPT Male
FSCN-92
C$1,192.98
Available
in 6 weeks
N/A
Glass Filled Nylon
3/4 in
NPT Male
FSW-91-R
C$891.47
Available
in 6 weeks
N/A
None
1/2 in
NPT Male
FSW-9112
C$1,843.97
Available
in 6 weeks
1/2 in NPT female Conduit with Cable
Glass Filled Nylon
1/2 in
NPT Male
FSW-9212
C$1,832.41
Available
in 6 weeks
1/2 in NPT female Conduit with Cable
Glass Filled Nylon
3/4 in
NPT Male
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Flow Switch

Flow switches are vital for industrial, commercial, and lab applications. DwyerOmega provides d...
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