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Flow Switches

No moving parts, not susceptible to contamination and can be oriented in any pipe configuration... [+]
22 Products found
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Thermal Dispersion Flow Switches for Use With Gases

OMEGA’s FST-320 Series thermal dispersion flow switches, especially designed for use with gases, sense changes in the heat transfer characteristics of the gases. Flow velocities f... Read More

FST320
Product Number Connection Size Flow Rate Body Material Switch Type Compatible Media Pipe Size Wire Length
FST-321-SPST
C$303.00
10 In Stock
3/4
1 to 90 fps
PP/PVDF
1 A SPST Relay
Gas
3/4 to 1 1/2 in
3 mm (3 ft)
FST-321-SPST-50
C$394.00
Available
in 8 weeks
3/4
1 to 90 fps
PP/PVDF
1 A SPST Relay
Gas
3/4 to 1 1/2 in
50 ft
FST-324-SPST-50
C$1,075.00
Available
in 8 weeks
3/4
1 to 90 fps
PVDF
1 A SPST Relay
Gas
2 to 12 in
50 ft
FST-323-SPST-50 FT
C$400.00
Available
in 8 weeks
3/4
1 to 90 fps
PP/PVDF
1 A SPST Relay
Gas
2 to 12 in
50 ft
FST-323-SPST-25 FT
C$360.00
Available
in 6 weeks
3/4
1 to 90 fps
PP/PVDF
1 A SPST Relay
Gas
2 to 12 in
25 ft
  Load More Items from this family (7) ...
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IN-LINE PLASTIC FLOW SWITCH

The FSW-140 Series rugged inline flow switches offer superior performance. Their fixed set-point and simple design make it a dependable switch. This series is an ideal choice for ... Read More

FSW-140
Product Number Connection Size Flow Rate Body Material Switch Type Compatible Media Wire Length
FSW-141
C$84.00
2 In Stock
3/8
0.07 GPM
Acetal
SPST
Water
610 mm (24 in)
FSW-145
C$84.00
1 In Stock
3/8
1.0 GPM
Acetal
SPST
Water
610 mm (24 in)
FSW-144
C$84.00
Available
in 8 weeks
3/8
0.5 GPM
Acetal
SPST
Water
610 mm (24 in)
FSW-142-QD
C$84.00
Available
in 8 weeks
1/4
0.15 GPM
Acetal
SPST
Water
610 mm (24 in)
FSW-146
C$84.00
Available
in 8 weeks
3/8
1.5 GPM
Acetal
SPST
Water
610 mm (24 in)
  Load More Items from this family (9) ...
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Industrial Flow Switches From 0.12 to 70 GPM Non-magnetic - ideal for Rusty Water

The FSW-30A flow switch is supplied with six orifices to provide 6 overlapping flow ranges from 0.12 to 8.0 GPM for water. The FSW-31 is supplied with 3 different drag discs to pr... Read More

FSW30
Product Number Connection Size Flow Rate Body Material Switch Type Compatible Media
FSW-30A
C$740.00
6 In Stock
1/2
0.12 to 8.0 GPM
Brass
2 SPDT
Water
FSW-31A-D
C$640.00
7 In Stock
1
6 to 70 GPM
Brass
DPDT
Water
FSW-32A
C$490.00
4 In Stock
1
4 to 8 GPM
Brass
2 SPDT
Water
FSW-32A-D
C$550.00
5 In Stock
1
4 to 8 GPM
Brass
DPDT
Water
FSW-31A
C$575.00
4 In Stock
1
6 to 70 GPM
Brass
2 SPDT
Water
  Load More Items from this family (1) ...
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Industrial Flow Switches - From 2 to 15 Feet/second

The FSW-40A and FSW-50 Series flow switches feature 15 A SPDT switches and an internal screw adjustment for in-line monitoring of switch points. Multiple drag disks provide increm... Read More

FSW40-50
Product Number Connection Size Flow Rate Body Material Switch Type Compatible Media Pipe Size Features
FSW-52
C$314.00
4 In Stock
1 1/4
2.0 to 4.0 fps, 4.0 to 8.0 fps
Polyphenylene sulfide
SPDT
Water
3 to 10 in
Standard
FSW-52-HST
C$347.00
3 In Stock
1 1/4
2.0 to 4.0 fps, 4.0 to 8.0 fps
Polyphenylene sulfide
SPDT
Water
3 to 10 in
Polyphenylene sulfide Hastelloy C and FKM special construction
FSW-43A-SS
C$950.00
6 In Stock
1
2.0 to 6.0 fps, 5.0 to 15.0 fps
316 Stainless Steel
SPDT
Water
10 to 48 in
Standard
FSW-40A
C$600.00
1 In Stock
1
2.0 to 6.0 fps, 5.0 to 15.0 fps
Brass
SPDT
Water
1 in
Standard
FSW-42A
C$600.00
6 In Stock
1
2.0 to 6.0 fps, 5.0 to 15.0 fps
Brass
SPDT
Water
3 to 10 in
Standard
  Load More Items from this family (9) ...
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MINI BRASS FLOW SWITCH

Measuring only 25 x 70 mm (1 x 2¾'), these FSW-130 Series compact switches are ideal for use where space is at a premium. Designed for use with water and oil, these switches a... Read More

FSW-130
Product Number Connection Size Flow Rate Body Material Switch Type Compatible Media Wire Length Features
FSW-131
C$153.00
9 In Stock
1/4
0.10 GPM
Brass
SPST 20 VA
Water, Oil
610 mm (24 in)
Standard
FSW-131-NC
C$153.00
1 In Stock
1/4
0.10 GPM
Brass
SPST 20 VA
Water, Oil
610 mm (24 in)
NC Relay
FSW-132
C$153.00
Available
in 5 weeks
1/4
0.25 GPM
Brass
SPST 20 VA
Water, Oil
610 mm (24 in)
Standard
FSW-135
C$153.00
Available
in 4 weeks
1/4
1.0 GPM
Brass
SPST 20 VA
Water, Oil
610 mm (24 in)
Standard
FSW-134
C$153.00
Available
in 5 weeks
1/4
0.75 GPM
Brass
SPST 20 VA
Water, Oil
610 mm (24 in)
Standard
  Load More Items from this family (7) ...
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Compact Fan and Filter Fan Air Flow Monitor

The FSW800B Series air-flow monitor provides a simple but reliable alternative to indicate positive or negative air flow of fans. When properly installed and connected in series w... Read More

FSW800B
Product Number Body Material Switch Type Compatible Media Wire Length Features
FSW801B
C$65.00
91 In Stock
NEMA 1 (IP 20)
NC
Air
500 mm (20 in)
Mounting clip and clamp
FSW807B
C$65.00
152 In Stock
NEMA 1 (IP 20)
NC
Air
500 mm (20 in)
120 x 120 mm (4.72 in) finger guard
FSW802B
C$65.00
674 In Stock
NEMA 1 (IP 20)
NO
Air
500 mm (20 in)
Mounting clip and clamp
FSW808B
C$65.00
79 In Stock
NEMA 1 (IP 20)
NO
Air
500 mm (20 in)
120 x 120 mm (4.72 in) finger guard
FSW804B
C$65.00
49 In Stock
NEMA 1 (IP 20)
NO
Air
500 mm (20 in)
80 x 80 mm (3.15 in) finger guard
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Liquid Flow Transmitter and Switch

The FSW-9000 Series is a flow switch monitor that measures the velocity of the flow. It is ideal for use in measurement and control liquid applications. The FSW-9000 Series provid... Read More

FSW9000
Product Number Connection Size Switch Type Compatible Media Features
FSW-91-R
C$530.00
1 In Stock
1/2
Flow Switch
Liquid
24 Vdc
FSW-9512
C$1,300.00
1 In Stock
1 1/2
Flow Switch
Liquid
24 Vdc
FSCN-92
C$600.00
Available
in 8 weeks
Not Applicable
Flow Switch
Liquid
240 Vac
FSW-9212
C$1,045.00
Available
in 8 weeks
3/4
Flow Switch
Liquid
24 Vdc Cable gland
FSCN-91
C$585.00
Available
in 8 weeks
Not Applicable
Flow Switch
Liquid
24 Vdc
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Flow Switches

The FSW301 flow switch comprises a paddle system with a permanent magnet attached. Above that magnet is a reed contact, located outside the flow of fluid. A second magnet with opp... Read More

FSW300-Series
Product Number Connection Size Flow Rate Body Material Compatible Media Features
FSW304
C$353.00
2 In Stock
1
3.5 to 4.4 GPM
Brass
Water
Standard
FSW303
C$353.00
4 In Stock
3/4
1.8 to 2.4 GPM
Brass
Water
Standard
FSW307
C$226.00
Available
in 6 weeks
1
2.8 to 3.9 GPM
Brass
Water
Standard
FSW305
C$226.00
Available
in 6 weeks
1/2
1.3 to 1.8 GPM
Brass
Water
Standard
FSW306
C$226.00
Available
in 6 weeks
3/4
2.5 to 3.2 GPM
Brass
Water
Standard
  Load More Items from this family (2) ...
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Flow Switches for Threaded Plastic Piping

The FSW500 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene or stainless steel, making th... Read More

FSW500
Product Number Connection Size Flow Rate Body Material Switch Type Compatible Media Wire Length
FSW501
C$103.00
7 In Stock
3/4
0.25 GPM
Polypropylene, hydrolytically stable
SPST
Water
0.6 mm (2 in)
FSW506
C$103.00
2 In Stock
3/4
5.0 GPM
Polypropylene, hydrolytically stable
SPST
Water
0.6 mm (2 in)
FSW503
C$103.00
1 In Stock
3/4
1.0 GPM
Polypropylene, hydrolytically stable
SPST
Water
0.6 mm (2 in)
FSW505
C$103.00
Available
in 5 weeks
3/4
2.50 GPM
Polypropylene, hydrolytically stable
SPST
Water
0.6 mm (2 in)
FSW502
C$103.00
Available
in 5 weeks
3/4
0.50 GPM
Polypropylene, hydrolytically stable
SPST
Water
0.6 mm (2 in)
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