Flow Switches

When fluid movement falls outside set thresholds, flow switches trigger alarms or shutdowns that protect pumps, heaters, and cooling systems from costly damage. Mechanical, thermal, and ultrasonic models support insertion and inline installation in pipes of every size.

: Dwyer (122)

122 items

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Dwyer

Dwyer - FS-100-050 Polypro Sensor .50 Gpm

MPN:FS-100-050

Flow Switch for Threaded Plastic Piping, Liquid, 0.5 GPM Switch Point, 50 VA SPST, 3/4 ", NPT Female, ± 10 % Accuracy, PP, 12 " (300mm) Wire L, FS-100 Series, Each

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$98.85

Should ship between 10 Jun and 17 Jun

Subject to factory lead times

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Dwyer

Dwyer - FSW-160 Brass Flow Switch

MPN:FSW-160

Flow Switch, Paddle, Heavy Duty, Liquid, 4 GPM to 500 GPM, 15 A SPDT, 1 ", NPT Male, ± 1 % Accuracy, 316 SS, 304 SS, Brass, EPDM, Each

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$219.06

Should ship between 29 May and 01 Jun

Subject to factory lead times

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Dwyer

Dwyer - FST-321-SPST Thermal Dispersion Switch Ce

MPN:FST-321-SPST

Flow Switch, Thermal Dispersion, Gas, 1 FPS to 90 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 ' Wire L, FST-320 Series, Each

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$309.43

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

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Dwyer

Dwyer - FSW301 Insertion Flow Switch

MPN:FSW301

Flow Switch, Low Cost, Economical, Liquid, 4 GPM to 132 GPM, 26 VA SPST, 1/2 ", NPT Male, Brass, SS, PP, Noryl, FSW300 Series, Each

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$313.24

Should ship between 29 May and 01 Jun

Subject to factory lead times

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Dwyer

Dwyer - FST-212-SPST Thermal Dispersion Switch Ce

MPN:FST-212-SPST

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PVDF, 10 " Wire L, FST-200 Series, Each

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$486.60

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

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Dwyer

Dwyer - FS-100-025 Polypro Sensor .25 Gpm

MPN:FS-100-025

Flow Switch for Threaded Plastic Piping, Liquid, 0.25 GPM Switch Point, 50 VA SPST, 3/4 ", NPT Female, ± 10 % Accuracy, PP, 12 " (300mm) Wire L, FS-100 Series, Each

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$93.57

Should ship between 10 Jun and 17 Jun

Subject to factory lead times

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Dwyer

Dwyer - FSW-25 Liq Flow Sen Parrallel Thread

MPN:FSW-25

Flow Switch, Trim-to-Size, Paddle, Liquid, 43 Centistokes, SPDT, 1 ", PT, ± 1 % Accuracy, 304 SS, Aluminum, Each

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$386.57

Should ship between 29 May and 01 Jun

Subject to factory lead times

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Dwyer

Dwyer - FST-221-SPST Thermal Dispersion Switch Ce

MPN:FST-221-SPST

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 2 " to 12 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 " Wire L, FST-200 Series, Each

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$293.54

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

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Dwyer

Dwyer - FSW-42A Indust.Flow Switch 3"

MPN:FSW-42A

Flow Switch for 3 " to 10 " Pipe, Industrial, Liquid, 2 FPS to 15 FPS, 15 A SPDT, 1 ", NPT Male, Brass, 316 SS, Phosphor Bronze, EPDM, FSW-40A Series, Each

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$627.40

Should ship between 29 May and 01 Jun

Subject to factory lead times

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Dwyer

Dwyer - FSW304 Inline Flow Switch

MPN:FSW304

Flow Switch, Low Cost, Economical, Liquid, 3.5 GPM to 4.4 GPM, 26 VA SPST, 1 ", NPT Female, Brass, FSW300 Series, Each

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$369.27

Should ship between 10 Jun and 17 Jun

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FSW-41A Indust.Flow Switch 1 1/2"

MPN:FSW-41A

Flow Switch for 1-1/2 " to 2-1/2 " Pipe, Industrial, Liquid, 2 FPS to 15 FPS, 15 A SPDT, 1 ", NPT Male, Brass, 316 SS, Phosphor Bronze, EPDM, FSW-40A Series, Each

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$627.40

Should ship between 29 May and 01 Jun

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FST-211-SPST Thermal Dispersion Switch Ce

MPN:FST-211-SPST

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 " Wire L, FST-200 Series, Each

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$280.40

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FS-100-050 Polypro Sensor .50 Gpm

MPN:FS-100-050

Flow Switch for Threaded Plastic Piping, Liquid, 0.5 GPM Switch Point, 50 VA SPST, 3/4 ", NPT Female, ± 10 % Accuracy, PP, 12 " (300mm) Wire L, FS-100 Series, Each

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$98.85

Should ship between 10 Jun and 17 Jun

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FSW-160 Brass Flow Switch

MPN:FSW-160

Flow Switch, Paddle, Heavy Duty, Liquid, 4 GPM to 500 GPM, 15 A SPDT, 1 ", NPT Male, ± 1 % Accuracy, 316 SS, 304 SS, Brass, EPDM, Each

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$219.06

Should ship between 29 May and 01 Jun

Subject to factory lead times

QTY:

Compare

Dwyer

Dwyer - FST-321-SPST Thermal Dispersion Switch Ce

MPN:FST-321-SPST

Flow Switch, Thermal Dispersion, Gas, 1 FPS to 90 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 ' Wire L, FST-320 Series, Each

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$309.43

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FSW301 Insertion Flow Switch

MPN:FSW301

Flow Switch, Low Cost, Economical, Liquid, 4 GPM to 132 GPM, 26 VA SPST, 1/2 ", NPT Male, Brass, SS, PP, Noryl, FSW300 Series, Each

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$313.24

Should ship between 29 May and 01 Jun

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FST-212-SPST Thermal Dispersion Switch Ce

MPN:FST-212-SPST

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PVDF, 10 " Wire L, FST-200 Series, Each

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$486.60

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FS-100-025 Polypro Sensor .25 Gpm

MPN:FS-100-025

Flow Switch for Threaded Plastic Piping, Liquid, 0.25 GPM Switch Point, 50 VA SPST, 3/4 ", NPT Female, ± 10 % Accuracy, PP, 12 " (300mm) Wire L, FS-100 Series, Each

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$93.57

Should ship between 10 Jun and 17 Jun

Subject to factory lead times

QTY:

Compare

Dwyer

Dwyer - FSW-25 Liq Flow Sen Parrallel Thread

MPN:FSW-25

Flow Switch, Trim-to-Size, Paddle, Liquid, 43 Centistokes, SPDT, 1 ", PT, ± 1 % Accuracy, 304 SS, Aluminum, Each

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$386.57

Should ship between 29 May and 01 Jun

Subject to factory lead times

QTY:

Compare

Dwyer

Dwyer - FST-221-SPST Thermal Dispersion Switch Ce

MPN:FST-221-SPST

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 2 " to 12 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 " Wire L, FST-200 Series, Each

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$293.54

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

QTY:

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Dwyer

Dwyer - FSW-42A Indust.Flow Switch 3"

MPN:FSW-42A

Flow Switch for 3 " to 10 " Pipe, Industrial, Liquid, 2 FPS to 15 FPS, 15 A SPDT, 1 ", NPT Male, Brass, 316 SS, Phosphor Bronze, EPDM, FSW-40A Series, Each

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$627.40

Should ship between 29 May and 01 Jun

Subject to factory lead times

QTY:

Compare

Dwyer

Dwyer - FSW304 Inline Flow Switch

MPN:FSW304

Flow Switch, Low Cost, Economical, Liquid, 3.5 GPM to 4.4 GPM, 26 VA SPST, 1 ", NPT Female, Brass, FSW300 Series, Each

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$369.27

Should ship between 10 Jun and 17 Jun

Subject to factory lead times

QTY:

Compare

Dwyer

Dwyer - FSW-41A Indust.Flow Switch 1 1/2"

MPN:FSW-41A

Flow Switch for 1-1/2 " to 2-1/2 " Pipe, Industrial, Liquid, 2 FPS to 15 FPS, 15 A SPDT, 1 ", NPT Male, Brass, 316 SS, Phosphor Bronze, EPDM, FSW-40A Series, Each

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$627.40

Should ship between 29 May and 01 Jun

Subject to factory lead times

QTY:

Compare

Dwyer

Dwyer - FST-211-SPST Thermal Dispersion Switch Ce

MPN:FST-211-SPST

Flow Switch, Thermal Dispersion, Liquid, 0.04 FPS to 3 FPS, 1 A SPST Relay, N.O/N.C, Selectable, 3/4 " to 1-1/2 ", NPT Male, ± 5 % Accuracy, PP, PVDF, 10 " Wire L, FST-200 Series, Each

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$280.40

Should ship between 01 Jul and 08 Jul

Subject to factory lead times

QTY:

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About NISCO Inc.

NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.

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Flow Switches

Filters 122 Results

$98.85

$219.06

$309.43

$313.24

$486.60

$93.57

$386.57

$293.54

$627.40

$369.27

$627.40

$280.40

$98.85

$219.06

$309.43

$313.24

$486.60

$93.57

$386.57

$293.54

$627.40

$369.27

$627.40

$280.40

Download Line Card

About NISCO Inc.

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