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  Our Catalog   Hydraulics, Pneumatics & Plumbing   Flow Switches

Flow Switches - On Sale Now! Save up to 6%


On Sale! Up to 6% off on Flow Switches at In The National Interest. Top brands include Mcdonnell & Miller, Altech, Asco, Dwyer, Fill-Rite, Fanuc Robotics, Branson Ultrasonics, Gems Sensors, & Warrick. Hurry! Limited time offers. Offers valid only while supplies last.



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

mpn: knox70011631-42SHD,

MCDONNELL & MILLER 42SHD HEAD MECHANISM * NEW NO BOX *...


Altech KEM3150L Y/R , Switch, Motor Disconnect, Enclosed, 150AMP, MF11 Enclosure Size
Altech KEM3150L Y/R , Switch, Motor Disconnect, Enclosed, 150AMP, MF11 Enclosure Size
In Stock
$573.22
$573.13

mpn: KEM3150L Y/R, ean: 0642008211028,

Enclosed Motor Disconnect Switches can be used locally at the motor. Available with black handle or in yellow/red handle (use suffix Y/R). Four-pole versions available upon request.Altech KEM3150L Y/R. Switch, Motor Disconnect, Enclosed, 150AMP, MF11...


ASCO RF10A44 316 Stainless Steel Corrosive Fluid Transducer for P Series Pressure Switch, 316 Stainless Steel Sealing
ASCO RF10A44 316 Stainless Steel Corrosive Fluid Transducer for P Series Pressure Switch, 316 Stainless Steel Sealing
By Asco
In Stock
$525.72

mpn: RF10A44,

Transducer unit incorporates a diaphragm/piston type pressure sensor, and is also a fully-tested, self-contained subassembly.Material: 316 Stainless Steel. For P Series Pressure Switch. 316 Stainless Steel sealing. ...


Dwyer Liquid Flow Controller, TSP110, PP Wetted Parts, 0.7'' (1.8 cm) Sensor
Dwyer Liquid Flow Controller, TSP110, PP Wetted Parts, 0.7" (1.8 cm) Sensor
In Stock
$691.90

mpn: TSP110,

Protect pumps and valves from dry running with the Series TSP Liquid Flow Controller. The Series TSP combine a liquid flow switch with a fail-safe relay controller to detect a flow or no flow situation and provides switching for direct actuation of p...


Dwyer Liquid Flow Controller, TSP120, PP Wetted Parts, 2.1'' (5.3 cm) Sensor
Dwyer Liquid Flow Controller, TSP120, PP Wetted Parts, 2.1" (5.3 cm) Sensor
In Stock
$703.90

mpn: TSP120,

Protect pumps and valves from dry running with the Series TSP Liquid Flow Controller. The Series TSP combine a liquid flow switch with a fail-safe relay controller to detect a flow or no flow situation and provides switching for direct actuation of p...


Fill-Rite FR102PHU Remote Pedestal Nozzle Hook, UL/cUL Listed, Red
Fill-Rite FR102PHU Remote Pedestal Nozzle Hook, UL/cUL Listed, Red
In Stock
$999.00

mpn: FR102PHU, ean: 0089404224465,

This attractive remote pedestal with nozzle hook is a great addition to your fleet or company fueling area. The Fill-Rite FR102PHU pedestal provides clean, simple remote switching for your pump, convenient hose storage, and a heavy duty nozzle boot. ...


Fanuc Robotics A05b-1405-K314 Cpl Camera Cable Kit 3.5 Meters A05b-1405-K314
Fanuc Robotics A05b-1405-K314 Cpl Camera Cable Kit 3.5 Meters A05b-1405-K314
In Stock
$609.39

mpn: A05B-1405-K314,

Fanuc Robotics A05b-1405-K314 Cpl Camera Cable Kit 3.5 MetersWeight: 1.67lb. Product Dimensions: 12.00 x 12.00 x 8.00 inches. Condition: New. ...


ASCO TA31A11 Aluminum Air/Gas Replacement Pressure Transducer for S Series Pressure Switch, Nitrile Butylene Sealing
ASCO TA31A11 Aluminum Air/Gas Replacement Pressure Transducer for S Series Pressure Switch, Nitrile Butylene Sealing
By Asco
In Stock
$742.40

mpn: TA31A11,

Transducer unit incorporates a diaphragm/piston type pressure sensor, and is also a fully-tested, self-contained subassembly.Material: Aluminum. Nitrile Butylene Sealing. For S Series Pressure Switch. ...


Genuine Branson OEM Size 6 Cooled, Sealed Atm. Chamber, 25-50 ml (Branson part# 101-021-006)
Genuine Branson OEM Size 6 Cooled, Sealed Atm. Chamber, 25-50 ml (Branson part# 101-021-006)
In Stock
$690.00

mpn: 101-021-006,

This is a standard ultrasonic cooled size 5 chamber.This part is fully compatible with Branson, Telsonic, Sonics and Materials, Misonix,and Dukane etc. machinery.. Electropolished for high quality finishing.. Proudly Made in USA. Material: high grade...


Genuine OEM Branson Size 4 Cooled, Sealed Atm. Chamber, 3-10 ml (Branson part# 101-021-004)
Genuine OEM Branson Size 4 Cooled, Sealed Atm. Chamber, 3-10 ml (Branson part# 101-021-004)
In Stock
$690.00

mpn: 101-021-004,

This is a standard ultrasonic cooled size 4 chamber.This part is fully compatible with Branson, Telsonic, Sonics and Materials, Misonix,and Dukane etc. machinery.. Electropolished for high quality finishing.. Proudly Made in USA. Material: high grade...


Genuine Branson OEM Size 1 Non-Cooled, Sealed Atm. Chamber, 3-10 ml (Branson part# 101-021-001)
Genuine Branson OEM Size 1 Non-Cooled, Sealed Atm. Chamber, 3-10 ml (Branson part# 101-021-001)
In Stock
$560.00

mpn: 101-021-001,

Size 1 ultrasonic sealed, non-cooled atmosphere chamber for 3/8'' and 1/2''biological horns.This part is fully compatible with Branson, Telsonic, Sonics and Materials, Misonix,and Dukane etc. machinery.. Electropolished for high quality finishing.. P...


Genuine Branson OEM Size 2 Non-Cooled, Sealed Atm. Chamber, 6-15 ml (Branson part# 101-021-002)
Genuine Branson OEM Size 2 Non-Cooled, Sealed Atm. Chamber, 6-15 ml (Branson part# 101-021-002)
In Stock
$590.00

mpn: 101-021-002,

Size 2 ultrasonic non-cooled sealed atmosphere chamber 6 to 15 ml for 3/8'' and 1/2''biological horns.This part is fully compatible with Branson, Telsonic, Sonics and Materials, Misonix,and Dukane etc. machinery.. Electropolished for high quality fin...


Genuine Branson OEM Size 3 Non-Cooled, Sealed Atm. Chamber, 25-50 ml (Branson part# 101-021-003)
Genuine Branson OEM Size 3 Non-Cooled, Sealed Atm. Chamber, 25-50 ml (Branson part# 101-021-003)
In Stock
$675.00

mpn: 101-021-003,

Size 3 ultrasonic non-cooled sealed atmosphere chamber 6 to 15 ml for 3/8'' and 1/2'', 3/4'', and 1/2'' biological horns.This part is fully compatible with Branson, Telsonic, Sonics and Materials, Misonix,and Dukane etc. machinery.. Electropolished f...


Genuine Branson OEM Size 6 Cooled, Sealed Atm. Chamber, 25-50 ml
Genuine Branson OEM Size 6 Cooled, Sealed Atm. Chamber, 25-50 ml
In Stock
$850.00

mpn: 101-021-006,

Genuine Branson OEM Size 6 ultrasonic cooled, sealed atmosphere chamber for 3/8'' and 1/2'', 3/4'', and 1/2'' biological horns.This part is fully compatible with Branson, Telsonic, Sonics and Materials, Misonix,and Dukane etc. machinery.. Electropoli...


Gems Sensors FS-10798  Series Stainless Steel 316 Flow Switch For Use With Liquids, Inline, Piston Type, With 1/2'' Conduit Connector, 0.50 - 20 gpm Flow Setting Adjustment Range, 1/2'' NPT Female
Gems Sensors FS-10798 Series Stainless Steel 316 Flow Switch For Use With Liquids, Inline, Piston Type, With 1/2" Conduit Connector, 0.50 - 20 gpm Flow Setting Adjustment Range, 1/2" NPT Female
In Stock
$714.00
$678.30
You Save: 5%

mpn: 25364, ean: 0013227017683,

4.6 out of 5 stars with 24 reviews
FS-10798 Series - Externally Adjustable for Water, Oils and Gases. These externally adjustable switches are ideal for protecting machine tools from coolant flow failure, for protecting bearings from loss of lubricant or to assure proper air flow. The...


Gems Sensors FS-200 Series Bronze Flow Switch, Inline, Shuttle Type, 2 gpm Flow Setting, 2'' NPT Female
Gems Sensors FS-200 Series Bronze Flow Switch, Inline, Shuttle Type, 2 gpm Flow Setting, 2" NPT Female
In Stock
$556.00

mpn: 27101, ean: 0799360211590,

FS-200 Series - General purpose, straight-through flow path. The FS-200 Series offers accurate flow detection, with 1% repeatability, over a broad range of flow settings and port sizes. Its durable construction delivers long-life reliability in eithe...


Warrick 3E5C 316 Stainless Steel Liquid Level Sensor with Five Probe, 3'' NPT Male
Warrick 3E5C 316 Stainless Steel Liquid Level Sensor with Five Probe, 3" NPT Male
In Stock
$643.00
$628.90
You Save: 2%

mpn: 3E5C,

Gems Warrick liquid level sensors are available in five 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 and...


Warrick 3E7C 316 Stainless Steel Liquid Level Sensor with Seven Probe, 3'' NPT Male
Warrick 3E7C 316 Stainless Steel Liquid Level Sensor with Seven Probe, 3" NPT Male
In Stock
$770.00
$752.40
You Save: 2%

mpn: 3E7C,

Gems Warrick liquid level sensors are available in seven 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 an...


Warrick 3E4C 316 Stainless Steel Liquid Level Sensor with Four Probe, 2-1/2'' NPT Male
Warrick 3E4C 316 Stainless Steel Liquid Level Sensor with Four Probe, 2-1/2" NPT Male
In Stock
$577.00
$564.30
You Save: 2%

mpn: 3E4C,

Gems Warrick liquid level sensors are available in four 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 and...


Gems Sensors FS-200 Series Stainless Steel 316 Flow Switch, Inline, Shuttle Type, 0.5 gpm Flow Setting, 1'' NPT Female
Gems Sensors FS-200 Series Stainless Steel 316 Flow Switch, Inline, Shuttle Type, 0.5 gpm Flow Setting, 1" NPT Female
In Stock
$527.73
$496.78
You Save: 6%

mpn: 27059,

4.1 out of 5 stars with 38 reviews
FS-200 Series - General purpose, straight-through flow path. The FS-200 Series offers accurate flow detection, with 1% repeatability, over a broad range of flow settings and port sizes. Its durable construction delivers long-life reliability in eithe...



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