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Home   Our Catalog   Hydraulics, Pneumatics & Plumbing   Flow Switches

Flow Switches - 65 - Page 3 - Mega Sale! Save up to 22%


Mega Sale! Up to 22% off on Flow Switches at In The National Interest, Page 3. Top brands include Gems Sensors, Baomain, Gits Manufacturing, Warrick, Mcdonnell & Miller, Gems, Dayton, Dwyer, & Cimtek. Hurry! Limited time offers. Offers valid only while supplies last.



Gems Sensors FS-400P Series PVC Flow Switch, Elbow, Shuttle Type, 2 gpm Flow Setting, 1'' IPS
Gems Sensors FS-400P Series PVC Flow Switch, Elbow, Shuttle Type, 2 gpm Flow Setting, 1" IPS
By Gems Sensors
In Stock
$85.00

mpn: 135815,

4.8 out of 5 stars with 8 reviews
FS-400P Series - Low Cost Units for Plastic Piping. Designed for low cost flow/no-flow monitoring. This series is available with a clear transparent PVC housing which is ideal for use where visual flow confirmation is desirable. These corrosion-resis...


Gems Sensors FS-150 Series Polypropylene Flow Switch with Low Pressure Drop, Inline, Piston Type, Normally Open, 0.5 gpm Flow Setting, 1/2'' NPT Male
Gems Sensors FS-150 Series Polypropylene Flow Switch with Low Pressure Drop, Inline, Piston Type, Normally Open, 0.5 gpm Flow Setting, 1/2" NPT Male
By Gems Sensors
In Stock
$92.00

mpn: 129660, ean: 0013227067862,

4.9 out of 5 stars with 32 reviews
These slim, inline switches reduce pressure drop to a minimum. They incorporate a unique, dual-diameter, internal bore and piston configuration to minimize flow constriction. Liquids are able to smoothly pass around the piston and flow through the sw...


Baomain Water Cooling System Flow HFS-15 1/2'' 250V AC SPDT Water Flow Paddle Control Switch
Baomain Water Cooling System Flow HFS-15 1/2" 250V AC SPDT Water Flow Paddle Control Switch
By Baomain
In Stock
$16.49

mpn: HFS-15,

4.5 out of 5 stars with 270 reviews
Screw terminal connection, male thread, plastic coated housing, paddle type. Can be mounted with a horizontal pipe line or vertical pipeline for the air conditioner. Used in liquid flow lines carrying water or any fluid, not harmful to brass or phosp...


Gits 1633-025801 Style 1633 Breather Vent, 1/4-18 NPT Breather with Screen and Nylon Filter
Gits 1633-025801 Style 1633 Breather Vent, 1/4-18 NPT Breather with Screen and Nylon Filter
By Gits Manufacturing
In Stock
$14.93
$11.70
You Save: 22%

mpn: 1633-025801,

4.9 out of 5 stars with 131 reviews
Designed for rugged industrial applications, these breathers maintain safe, equalized pressure in a unit even when it is being filled or under sudden changes in ambient temperature. Style 1633 has a screen plus two layers of nylon for filtration.Desi...


Warrick 3E1B Red Brass Liquid Level Sensor with Single Probe, 1'' NPT Male
Warrick 3E1B Red Brass Liquid Level Sensor with Single Probe, 1" NPT Male
By Warrick
In Stock
$158.00

mpn: 3E1B,

4.9 out of 5 stars with 289 reviews
Gems Warrick liquid level sensors are available in single probe models. The versatility of the Warrick design makes these sensors ideal for a diverse range of applications. It includes food and beverage, pharmaceuticals, caustics and acids, boilers a...


Gems Sensors 117716 316 Stainless Steel Float Single Point Bent Stem Level Switch, 1-1/2'' Diameter, 3/8''-24 Thread, 2'' Actuation Level, SPST/Normally Open
Gems Sensors 117716 316 Stainless Steel Float Single Point Bent Stem Level Switch, 1-1/2" Diameter, 3/8"-24 Thread, 2" Actuation Level, SPST/Normally Open
By Gems Sensors
In Stock
$121.57

mpn: 117716,

4.3 out of 5 stars with 112 reviews
Gems single point level switch. Bent stem switches provide greatest buoyancy of any side mount version. These units perform in liquids with specific gravities as low as 0.45. switches protrude into tank less than 3 inches. UL Recognized. Float stop i...


McDonnell & Miller FS251 General Purpose Flow Switch, 1'' Replaces Fs4-3
McDonnell & Miller FS251 General Purpose Flow Switch, 1" Replaces Fs4-3
By Mcdonnell & Miller
In Stock
$116.24
$104.90
You Save: 10%

mpn: FS251,

4.1 out of 5 stars with 113 reviews
FS251, McDonnell & Miller McDonnell & Miller general purpose flow switch, 1 inch replaces fs4-3, McDonnell & Miller, McDonnell & Miller McDonnell & Miller general purpose flow switch, 1 inch replaces fs4-3. Made in United States. Manufactured by McDo...


Gems Sensors 160450 Polypropylene Float Small Size Type 7 External Mounting Single Point Level Switch, 11/16'' Diameter, 1/2'' NPT Male
Gems Sensors 160450 Polypropylene Float Small Size Type 7 External Mounting Single Point Level Switch, 11/16" Diameter, 1/2" NPT Male
By Gems Sensors
In Stock
$37.00

mpn: 160450, ean: 0013227001279,

4.1 out of 5 stars with 299 reviews
Gems Polypropylene float single point level switch with type 7 internal mounting. Ls-7 series compact side mounts are the solution to many small tanks. These low-cost units are ideal for high volume use in small tanks and vessels. Engineered plastics...


Gems PS75-30-4MNZ-C-HCR Series PS75 Cylindrical Pressure Switch, SPDT Circuit, 50-150 psi Range, 1/4" MNPT Steel Fitting, RA DIN 43650A 9 mm Cable Clamp (Pack of 5)
By Gems
In Stock
$119.74
$119.50

mpn: PS75-30-4MNZ-C-HCR,

4.1 out of 5 stars with 273 reviews
Germs PS75 series have all metal surfaces for overload stops and deliver reliable operation under extremely high pressure surges. They are designed with a wear Disc and cushioning ring for increased life. The switches use a piston/diaphragm design, w...


Dayton 10A169 Float Switch, Vertical, 1/2 HP, Cord 8 Ft
Dayton 10A169 Float Switch, Vertical, 1/2 HP, Cord 8 Ft
By Dayton
In Stock
$84.00
$78.70
You Save: 6%

mpn: 10A169,

4.8 out of 5 stars with 193 reviews
Float Switch, Mechanical, Vertical, Normally Open, Plug Connection, Max. Amps Running 10, HP @ 1 Phase - 115V 1/2, Voltage 115, Wire Gauge 16, Pumping Range Min./Max. 1 to 6, VA Rating 1560, Float Material Polypropylene, Body Material ABS, Control Ra...


Gits 1637-037800 Style 1637 Breather Vent, 3/8-18 NPT Breather with Screen and Nylon Filter
Gits 1637-037800 Style 1637 Breather Vent, 3/8-18 NPT Breather with Screen and Nylon Filter
By Gits Manufacturing
In Stock
$19.79

mpn: 1637-037800,

4.0 out of 5 stars with 260 reviews
This popular style offers greater filtered air flow with better protection against clogging from dirt accumulating on the equipment. The design incorporates more vent ports and they are located higher on the body of the unit for greater clearance. Th...


Dwyer WE Anderson Series FS-2 Vane Flow Switch, Paddle, 1'' Male NPT, 145 psig Max. Pressure
Dwyer WE Anderson Series FS-2 Vane Flow Switch, Paddle, 1" Male NPT, 145 psig Max. Pressure
By Dwyer
In Stock
$47.00

mpn: FS-2,

4.0 out of 5 stars with 275 reviews
The Series Fs-2 Vane Flow Switches Offers An Economical Flow Proving Solution. The Fs-2 Paddles Are Adjustable To Fit 1 To 8" Size Pipe. Made in United States. Manufactured by Dwyer Instruments.Low Cost. Field Adjustable Set Point And Paddle. Sold As...


Gems Sensors 165800 Polypropylene Float Small Size Type 10 External Mounting Single Point Level Switch, 11/16'' Diameter
Gems Sensors 165800 Polypropylene Float Small Size Type 10 External Mounting Single Point Level Switch, 11/16" Diameter
By Gems Sensors
In Stock
$41.99
$39.00
You Save: 7%

mpn: 165800,

4.3 out of 5 stars with 49 reviews
Gems Polypropylene float single point level switch with type 3 internal mounting. Ls-7 series compact side mounts are the solution to many small tanks. These low-cost units are ideal for high volume use in small tanks and vessels. Engineered plastics...


Dwyer Flotect Series V10 Mini-Size Flow Switch, Brass Housing, Normally Open or Closed, Pressure Range 0-1000 psig, 1/2'' Male NPT
Dwyer Flotect Series V10 Mini-Size Flow Switch, Brass Housing, Normally Open or Closed, Pressure Range 0-1000 psig, 1/2'' Male NPT
By Dwyer
SKU: #V10
In Stock
$46.50

sku: V10, mpn: V10,

4.9 out of 5 stars with 250 reviews
Designed to provide an inexpensive, reliable unit to monitor the presence or absence of flow in a system. The V10 flow switch is used to monitor unattended equipment and protect it from costly damage. The V10 flow switch utilizes a rugged, hermetical...


Gits 1637-037804 Style 1637 Breather Vent, 3/8-18 NPT Filtered Breather Vent
Gits 1637-037804 Style 1637 Breather Vent, 3/8-18 NPT Filtered Breather Vent
By Gits Manufacturing
In Stock
$11.95

mpn: 1637-037804,

4.1 out of 5 stars with 217 reviews
This popular style offers greater filtered air flow with better protection against clogging from dirt accumulating on the equipment. The design incorporates more vent ports and they are located higher on the body of the unit for greater clearance. Th...


Dwyer Flotect Series V6 Mini-Size Flow Switch, Brass Upper and Lower Housing, SPDT Snap Switch, 1-1/4'' NPT Process Connection, Brass Tee
Dwyer Flotect Series V6 Mini-Size Flow Switch, Brass Upper and Lower Housing, SPDT Snap Switch, 1-1/4" NPT Process Connection, Brass Tee
By Dwyer
In Stock
$197.50
$189.99
You Save: 4%

mpn: V6EPB-B-S-4-B,

4.6 out of 5 stars with 77 reviews
Surprisingly compact, the Series V6 Flotect® Flow Switch is engineered to specifically monitor liquid, gas, or air flows. Operation is simple and dependable with no mechanical linkage as the flow switch is magnetically actuated. The lower body holds...


Gems Sensors 162745 Buna N Float Single Point Highly Reliable Compact Level Switch, 1'' Diameter, 1/8'' NPT Male, 13/16'' Actuation Level
Gems Sensors 162745 Buna N Float Single Point Highly Reliable Compact Level Switch, 1" Diameter, 1/8" NPT Male, 13/16" Actuation Level
By Gems Sensors
In Stock
$35.00

mpn: 162745,

4.0 out of 5 stars with 29 reviews
Gems Buna-N float single point level switch. Offers high reliability, compact size and low cost. Ideal for shallow tanks or restricted spaces, or for any low-cost, high volume use. Stem and mounting made of nylon. Ideal for oils and fuels. 13/16" act...


Cim-Tek 60002 Locking Pre Vent Cap
Cim-Tek 60002 Locking Pre Vent Cap
By Cimtek
In Stock
$20.27

mpn: 60002, ean: 0662537600025,

4.9 out of 5 stars with 61 reviews
60002 The Cim-Tek Locking Pre-Vent pressure cap is a original patent design for use on small above ground farm tanks, commercial gasoline tanks, distillate tanks, fuel transfer tanks, small oil storage tanks, and industrial oil transfer tanks. The Pr...


McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
By Mcdonnell & Miller
In Stock
$100.50

mpn: 114400, ean: 0751875000274,

4.4 out of 5 stars with 66 reviews
Used for starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners and metering devices. 1" NPT connection, single pole, double throw switching. Sealed Monel Bellow. Two electrical knock-outs allows...


MCDONNELL & MILLER 42SHD HEAD MECHANISM NEW NO BOX
MCDONNELL & MILLER 42SHD HEAD MECHANISM NEW NO BOX
By Mcdonnell & Miller
In Stock
$613.00

mpn: knox70011631-42SHD,

4.5 out of 5 stars with 244 reviews
MCDONNELL & MILLER 42SHD HEAD MECHANISM * NEW NO BOX *...



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