Skip to: Content, Skip to: Main Content, Skip to: Footer


Refine By
 JavaScript Disabled
Your web browser does not have JavaScript enabled.
In order to use most of the functionality of this website, you will need to have JavaScript
enabled in your browser.
Please wait...
Home /  Pumps  /  Pump Controls  Remove  /  Flow Switches  Remove  /  MCDONNELL & MILLER  Remove

14 Products Found

View
 
 
Change Display:List ViewGrid View
Select
Items to
Select Items to CompareGrainger Item # and Description Compliance
& Notes
Brand &
Model #
Catalog
Page #
Availability Ship
Quantity
Price
General Purpose Flow Switch,NEMA1
View Larger
General Purpose Flow Switch,NEMA1
Item # 2RUL3
General Purpose Switch, Min. Flow Rate 5.8 GPM, Max. Flow GPM 131, Connection Size (In.) 1 NPT, Switch Enclosure NEMA1, Min. Ambient Temp. 32 F
MCDONNELL & MILLER
FS251
4115Typically in Stock  Help

1
$148.35
  
See All: Flow Switches
  5.0 (out of 5) | Read All Reviews (1)
Add to Personal List Quantity
General Purpose Flow Switch,NEMA4
View Larger
General Purpose Flow Switch,NEMA4
Item # 2RUL4
General Purpose Switch, Min. Flow Rate 5.8 GPM, Max. Flow GPM 131, Connection Size (In.) 1 NPT, Switch Enclosure NEMA4, Min. Ambient Temp. 32 F
MCDONNELL & MILLER
FS254
4115Typically in Stock  Help

1
$236.50
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC67
General Purpose Switch, Min. Flow Rate 1.5 GPM, Max. Flow GPM 15, Connection Size (In.) 3/4 FNPT, Switch Enclosure NEMA1, Min. Ambient Temp. 32 F
MCDONNELL & MILLER
FS5-3/4
4115Typically in Stock  Help

1
$241.50
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Flow
View Larger
Switch,Flow
Item # 1RF63
1/3 HP, General Purpose, Electrically Operated, Min. Flow Rate 1.5 GPM, Max. Flow GPM 15, Connection Size (In.) 1 NPT, Switch Enclosure NEMA1
MCDONNELL & MILLER
FS5-1
4115Typically in Stock  Help

1
$255.50
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC70
Industrial/Heavy-duty Liquid Flow Switch, Min. Flow Rate 4.8 GPM, Max. Flow GPM 7.7, Connection Size (In.) 1 1/4 NPT, Switch Enclosure NEMA1
MCDONNELL & MILLER
FS7-4
4115Typically in Stock  Help

1
$405.25
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Air Flow
View Larger
Switch,Air Flow
Item # 4RC76
Switch Enclosure NEMA1, Min. Ambient Temp. 32 F, Max. Ambient Temp. 300 F, Operating Velocity Range 910 to 1610 FPM
MCDONNELL & MILLER
AF-1
4115Typically in Stock  Help

1
$218.50
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Flow
View Larger
Switch,Flow
Item # 1RF64
Heavy-duty, High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 3/4 NPT, Switch Enclosure NEMA1
MCDONNELL & MILLER
FS6-3/4
4115Typically in Stock  Help

1
$417.75
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC72
Industrial/Heavy-duty Switch, Min. Flow Rate 4.8 GPM, Max. Flow GPM 7.7, Connection Size (In.) 1 1/4 NPT, Switch Enclosure NEMA 4X
MCDONNELL & MILLER
FS7-4W
4115Typically in Stock  Help

1
$523.50
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC69
High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 1 NPT, Switch Enclosure NEMA 4X, Min. Ambient Temp. 32 F
MCDONNELL & MILLER
FS6-W-1
4115Typically in Stock  Help

1
$449.00
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC73
Industrial/Heavy-duty Switch, Min. Flow Rate 4.8 GPM, Max. Flow GPM 7.7, Connection Size (In.) 1 1/4 NPT, Switch Enclosure NEMA 4X
MCDONNELL & MILLER
FS7-4SW
4115Typically in Stock  Help

1
$832.00
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC68
7.4 Amps, High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 1 NPT, Switch Enclosure NEMA 1
MCDONNELL & MILLER
FS6-1
4115Typically in Stock  Help

1
$406.75
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC74
Industrial/Heavy-duty Switch, Min. Flow Rate 4.8 GPM, Max. Flow GPM 7.7, Connection Size (In.) 1 1/4 NPT, Switch Enclosure NEMA 7,9
MCDONNELL & MILLER
FS7-4E
4115Typically in Stock  Help

1
$624.00
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Liquid Flow
View Larger
Switch,Liquid Flow
Item # 4RC71
Industrial/Heavy-duty, Min. Flow Rate 4.8 GPM, Max. Flow GPM 7.7, Connection Size (In.) 1 1/4 NPT, Switch Enclosure NEMA1, Min. Ambient Temp. 32 F
MCDONNELL & MILLER
FS7-4S
4115Typically in Stock  Help

1
$709.50
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Switch,Flow
View Larger
Switch,Flow
Item # 1RF65
High Sensitivity Switch, Min. Flow Rate 0.12 GPM, Max. Flow GPM 2.5, Connection Size (In.) 3/4 NPT, Switch Enclosure NEMA 4X, Min. Ambient Temp. 32 F
MCDONNELL & MILLER
FS6-W-3/4
4115Typically in Stock  Help

1
$461.00
  
See All: Flow Switches
  Rating Be the first to write a review
Add to Personal List Quantity
Select
Items to
Compare Selected ItemsGrainger Item # and Description Compliance
& Notes
Brand &
Model #
Catalog
Page #
Availability Ship
Quantity
Price
Sort by Grainger Item #
Compliance and Notes
Sort by Brand
Catalog Page #
Sort by Availability
Ship Quantity
Sort by Price

14 Products Found

View
 
 
Change Display:List ViewGrid View
An efficient flow switch from Grainger can accurately monitor the flow of air, steam or liquid, then send a signal to a pump to turn itself on or itself shut off. Liquid flow switches can be used to help regulate systems such hydronic heating, plumbing, water cooling equipment, liquid transfer, water treatment and more. Air flow switches can be used to help operate cleanroom filter systems, duct type heating, air ventilating and more. Shop Grainger for dependable flow switches!
If the settings on your account have changed since this order was submitted, they will be updated when this order is approved.
Pricing and availability are not confirmed until the order is processed. Promotional pricing and offers associated with this order will only apply if the order is approved within the timeframe of the promotion.
Compare Products


AlertYou have selected too many items to compare, please select up to 8 items.
Please wait

Please wait while we process your request.

  • Questions? Call us
    1-800-Grainger
Email Sign Up
  • Get industry news,
    new product information,
    helpful tips and more.
  • Connect With Us
Home  |   Terms of Access  |  Terms of Sale  |  Return Policy  |  Privacy Policy   (Rev. October, 2012)  |  About our Ads  |  Sitemap
© 1994 - 2013 W.W. Grainger, Inc. All rights reserved.