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Flow Switches
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The FST1000-Series measures air velocity and provides two SPST contact closures corresponding to high and low alarm set points. The alarm set points adjust from 0 to 100%
| Product Number | Media Type | Velocity Range | Accuracy | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power | Wire Length | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Air
|
0 to 5,000 FPM
|
±2%
|
93 °C (200 °F)
|
Compression Fitting
|
1/4"
|
304 SS
|
2 SPST NO Relays
|
15 to 24 Vdc
|
12"
|
Remote Probe
|
|
|
Air
|
0 to 5,000 FPM
|
±2%
|
93 °C (200 °F)
|
Compression Fitting
|
1/4"
|
304 SS
|
2 SPST NO Relays
|
15 to 24 Vdc
|
12"
|
Fixed Probe
|
|
|
Air
|
0 to 10,000 FPM
|
±2%
|
93 °C (200 °F)
|
Compression Fitting
|
1/4"
|
304 SS
|
2 SPST NO Relays
|
15 to 24 Vdc
|
12"
|
Fixed Probe
|
|
|
Air
|
0 to 10,000 FPM
|
±2%
|
93 °C (200 °F)
|
Compression Fitting
|
1/4"
|
304 SS
|
2 SPST NO Relays
|
15 to 24 Vdc
|
12"
|
Remote Probe
|
The FST-200 flow switches use thermal dispersion technology to create a very accurate and economical method of sensing flow. Monitor fluids from 0.4 to 1.2 specific gravity.
| Product Number | Media Type | Velocity Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power | Wire Length | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
0.04 to 3 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
2" to 12"
|
PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
Liquid
|
0.04 to 3 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
3/4" to 1 1/2"
|
PP, PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
Liquid
|
0.04 to 3 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
3/4" to 1 1/2"
|
PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
Liquid
|
0.04 to 3 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
2" to 12"
|
PP, PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
3.0 x 3/4
|
0.04 to 3 fps (Liquids)
|
PP/PVDF
|
SPST
|
Liquid
|
3/4 to 1 1/2 in
|
7.62 m (25 ft)
|
|||||
The FSW-25 flow switch utilizes the force of liquid flow to propel its paddle and to detect the incoming flow or movement of the existing liquid in the pipe.
| Product Number | Media Type | Flow Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power |
|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
See Product Specs
|
±1%
|
355 psi
|
149 °C (300 °F)
|
PT
|
1"
|
304 SS, Aluminum
|
SPDT
|
200 Vdc
|
The FSW-160 is the newest heavy-duty line of flow switches.The switch is used to signal,start,or stop electronically operated equipment when flow or no-flow conditions occur.
| Product Number | Media Type | Flow Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power |
|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
4 to 500 GPM
|
±1%
|
200 psi
|
121 °C (250 ˚F)
|
NPT Male
|
1"
|
316 SS, 304 SS, Brass, EPDM
|
15 A SPDT
|
125 or 250 Vac
|
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 | Media Type | Velocity Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power | Wire Length | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Gas
|
1 to 90 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
3/4" to 1 1/2"
|
PP, PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
Gas
|
1 to 90 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
3/4" to 1 1/2"
|
PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
Gas
|
1 to 90 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
2" to 12"
|
PP, PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
|
|
Gas
|
1 to 90 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
2" to 12"
|
PVDF
|
1 A SPST Relay
|
12 to 36 Vdc
|
10'
|
Switch Type Selectable, NO or NC
|
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.
| Product Number | Media Type | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Wire Length | Features |
|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
±20%
|
100 psi
|
100 °C (212 °F)
|
NPT Female
|
3/4"
|
Polypropylene, 316 SS, FKM
|
20 VA SPST
|
48"
|
1.00 GPM Switch Point
|
|
|
Liquid
|
±20%
|
100 psi
|
100 °C (212 °F)
|
NPT Female
|
3/4"
|
Polypropylene, 316 SS, FKM
|
20 VA SPST
|
48"
|
5.00 GPM Switch Point
|
The FSW-40A and FSW-50-Series flow switches feature 15 A SPDT switches. Their non-magnetic design makes these switches ideal for applications in which rust is a problem.
| Product Number | Media Type | Velocity Range | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Features |
|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
2.7 to 10.8 FPS
|
100 psi
|
93 °C (200 °F)
|
NPT Male
|
1 1/4"
|
316 SS, Polyphenylene Sulfide, FKM
|
15 A SPDT
|
For 1¹⁄₂" to 2¹⁄₂" Pipe Sizes
|
|
|
Liquid
|
3.3 to 11.5 FPS
|
100 psi
|
93 °C (200 °F)
|
NPT Male
|
1 1/4"
|
316 SS, Polyphenylene Sulfide, FKM
|
15 A SPDT
|
For 1" Pipe Sizes
|
|
|
Liquid
|
2.0 to 15 FPS
|
300 psi
|
82 °C (180 °F)
|
NPT Male
|
1"
|
Brass, 316 SS, Phosphor Bronze, EPDM
|
15 A SPDT
|
For 1" Pipe Sizes
|
|
|
Liquid
|
2.0 to 15 FPS
|
300 psi
|
82 °C (180 °F)
|
NPT Male
|
1"
|
Brass, 316 SS, Phosphor Bronze, EPDM
|
15 A SPDT
|
For 1¹⁄₂" to 2¹⁄₂" Pipe Sizes
|
|
|
Liquid
|
2.0 to 15 FPS
|
300 psi
|
82 °C (180 °F)
|
NPT Male
|
1"
|
Brass, 316 SS, Phosphor Bronze, EPDM
|
15 A SPDT
|
For 3" to 10" Pipe Sizes
|
The FS-100-Series offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene.
| Product Number | Media Type | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Wire Length | Features |
|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
±10%
|
120 psi
|
80°C (175°F)
|
NPT Female
|
3/4"
|
Polypropylene
|
50 VA SPST
|
12" (300mm)
|
0.25 GPM Switch Point
|
|
|
Liquid
|
±10%
|
120 psi
|
80°C (175°F)
|
NPT Female
|
3/4"
|
Polypropylene
|
50 VA SPST
|
12" (300mm)
|
0.50 GPM Switch Point
|
|
|
Liquid
|
±10%
|
120 psi
|
80°C (175°F)
|
NPT Female
|
3/4"
|
Polypropylene
|
50 VA SPST
|
12" (300mm)
|
1.00 GPM Switch Point
|
|
|
Liquid
|
±10%
|
120 psi
|
80°C (175°F)
|
NPT Female
|
3/4"
|
Polypropylene
|
50 VA SPST
|
12" (300mm)
|
2.00 GPM Switch Point
|
|
|
Liquid
|
±10%
|
120 psi
|
80°C (175°F)
|
NPT Female
|
3/4"
|
Polypropylene
|
50 VA SPST
|
12" (300mm)
|
2.50 GPM Switch Point
|
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 | Media Type | Flow Range | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Features |
|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
4 to 132 GPM
|
365 psi
|
110 °C (230 °F)
|
NPT Male
|
1/2"
|
Brass, SS, Polypropylene, Noryl
|
26 VA SPST
|
Not Applicable
|
|
|
Liquid
|
0.9 to 1.1 GPM
|
362 psi
|
110 °C (230 °F)
|
NPT Female
|
1/2"
|
Brass
|
26 VA SPST
|
Not Applicable
|
|
|
Liquid
|
1.8 to 2.4 GPM
|
362 psi
|
110 °C (230 °F)
|
NPT Female
|
3/4"
|
Brass
|
26 VA SPST
|
Not Applicable
|
|
|
Liquid
|
3.5 to 4.4 GPM
|
362 psi
|
110 °C (230 °F)
|
NPT Female
|
1"
|
Brass
|
26 VA SPST
|
Not Applicable
|
|
|
Liquid
|
4 to 132 GPM
|
365 psi
|
110 °C (230 °F)
|
G Thread Male
|
1/2"
|
Brass, SS, Polypropylene, Noryl
|
26 VA SPST
|
Not Applicable
|
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 | Media Type | Velocity Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid, Gas
|
Liquid 0.09 to 9.84 FPS, Gas 0.16 to 49 FPS
|
±10%
|
4,351 psi
|
80 °C (176 °F)
|
NPT Male
|
3/4"
|
316 SS
|
5 A SPDT
|
85 to 240 Vac
|
2" Insertion Length
|
|
|
Liquid, Gas
|
Liquid 0.09 to 9.84 FPS, Gas 0.16 to 49 FPS
|
±10%
|
4,351 psi
|
80 °C (176 °F)
|
NPT Male
|
1/2"
|
316 SS
|
5 A SPDT
|
24 Vdc
|
1 3/8" Insertion Length
|
|
|
Liquid, Gas
|
Liquid 0.09 to 9.84 FPS, Gas 0.16 to 49 FPS
|
±10%
|
4,351 psi
|
80 °C (176 °F)
|
NPT Male
|
1/2"
|
316 SS
|
5 A SPDT
|
24 Vdc
|
2" Insertion Length
|
|
|
Liquid, Gas
|
Liquid 0.09 to 9.84 FPS, Gas 0.16 to 49 FPS
|
±10%
|
4,351 psi
|
80 °C (176 °F)
|
NPT Male
|
1/2"
|
316 SS
|
5 A SPDT
|
24 Vdc
|
3" Insertion Length
|
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 | Media Type | Flow Range | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type |
|---|---|---|---|---|---|---|---|---|
|
|
Water
|
0.12 to 8 GPM
|
300 psi
|
82 °C (180 °F)
|
NPT Female
|
1/2"
|
Brass, 316 SS, Phosphor Bronze, EPDM
|
15 A SPDT
|
|
|
Water
|
6 to 70 GPM
|
300 psi
|
82 °C (180 °F)
|
NPT Female
|
1"
|
Brass, 316 SS, Phosphor Bronze, EPDM, PVC
|
15 A SPDT
|
|
|
Water
|
4 to 8 GPM
|
300 psi
|
82 °C (180 °F)
|
NPT Female
|
1"
|
Brass, 316 SS, Phosphor Bronze, EPDM, PVC
|
15 A SPDT
|
The FSW-420/30-Series monitors your relative flow rate for applications where the actual flow rate is not important. The FSW-420/30-Series is easy to install and use.
| Product Number | Connection Size | Body Material | Switch Type | Compatible Media | Wire Length | Features |
|---|---|---|---|---|---|---|
|
|
12 mm (0.47 in)
|
Anodized Aluminum
|
In-line Flow
|
Liquids
|
2 m (6.5 ft)
|
Standard
|
The FSW800B-Series air-flow monitor provides a simple but reliable alternative to indicate positive or negative air flow of fans.
| Product Number | Media Type | Velocity Range | Max Process Temperature | Wetted Materials | Switch Rating and Type | Wire Length | Features |
|---|---|---|---|---|---|---|---|
|
|
Air
|
Greater than 8.2 FPS
|
50 °C (122 °F)
|
Plastic
|
NC
|
20"
|
Mounting Clip and Clamp
|
|
|
Air
|
Greater than 8.2 FPS
|
50 °C (122 °F)
|
Plastic
|
NO
|
20"
|
Mounting Clip and Clamp
|
|
|
Air
|
Greater than 8.2 FPS
|
50 °C (122 °F)
|
Plastic
|
NC
|
20"
|
3.15" Finger Guard
|
|
|
Air
|
Greater than 8.2 FPS
|
50 °C (122 °F)
|
Plastic
|
NO
|
20"
|
3.15" Finger Guard
|
|
|
Air
|
Greater than 8.2 FPS
|
50 °C (122 °F)
|
Plastic
|
NC
|
20"
|
4.72" Finger Guard
|
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 | Media Type | Velocity Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Supply Power | Wire Length |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
0.04 to 3 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
3/4" to 1 1/2"
|
PP, PVDF
|
10 A SPDT
|
120/240 Vac 50/60 Hz
|
Not Applicable
|
|
|
Liquid
|
0.04 to 3 FPS
|
±5%
|
150 psi
|
60 °C (140 °F)
|
NPT Male
|
2" to 12"
|
PP, PVDF
|
10 A SPDT
|
120/240 Vac 50/60 Hz
|
Not Applicable
|
The FSW-140-Series flow switches offer superior performance. Their fixed set-point make it a dependable switch. This-Series is an ideal choice for coolant applications.
| Product Number | Media Type | Flow Range | Accuracy | Max Operating Pressure | Max Process Temperature | Process Connection Type | Process Connection Size | Wetted Materials | Switch Rating and Type | Wire Length | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Liquid
|
0.07 to 2 GPM
|
±20%
|
125 psi
|
100 °C (212 °F)
|
NPT Male
|
3/8"
|
316 SS, Polypropylene, Polyphenylene Sulfide, FKM
|
10 VA SPST
|
24"
|
0.07 GPM Switch Point
|
For operator alert to low flow conditions an amber lens distributes the high intensity strobe light in a pattern which calls immediate attention to alarm conditions.
| Product Number | Connection Size | Body Material | Switch Type |
|---|---|---|---|
|
|
3/4
|
Polypropylene (PP)
|
SPDT
|
| Product Number | Body Material | Switch Type | Features |
|---|---|---|---|
|
|
Polypropylene (U.L. 94V0)
|
SPDT
|
Dual Flow or no-flow controller
|
|
|
Polypropylene (U.L. 94V0)
|
SPDT
|
Flow or no-flow controller
|
|
|
Polypropylene (U.L. 94V0)
|
SPDT
|
CE approved dual flow or no-flow controller
|
|
|
Polypropylene (U.L. 94V0)
|
SPDT
|
CE approved Flow or no-flow controller
|
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 | Connection Size | Switch Type | Compatible Media | Features |
|---|---|---|---|---|
|
|
Not Applicable
|
Flow Switch
|
Liquid
|
24 Vdc
|
|
|
Not Applicable
|
Flow Switch
|
Liquid
|
240 Vac
|
|
|
1/2
|
Flow Switch
|
Liquid
|
24 Vdc
|
|
|
1/2
|
Flow Switch
|
Liquid
|
24 Vdc
|
|
|
3/4
|
Flow Switch
|
Liquid
|
24 Vdc Cable gland
|
The FLCN-110 offers adjustable time delay relays, invert switch, and LED status enunciators all maximize the flexibility of this powerful controller.
| Product Number | Connection Size | Body Material | Switch Type | Features |
|---|---|---|---|---|
|
|
3/4
|
Polypropylene (PP)
|
SPDT relay, Form C
|
Standard
|
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