Water Flow Switches | McMaster-Carr

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Calibrated With

Water

System of Measurement

Pipe Size

For Use With

Body Material

Set Point

Wetted Parts Material

Voltage

Fitting Connection

Mounting Location

Fitting Material

Switch Designation

Maximum Temperature

Flow Measurement Type

Differential Pressure

Maximum Pressure @ Temperature

Maximum Flow Rate

1,000 gpm to 1,999 gpm

Gender

Shape

Maximum Switching Current @ Voltage

Flow Set Point

Mounting Position

RoHS

Compliant with Exemptions

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Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

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229 Products

Flow Switches

Inline-Mount Flow Switches

Fixed-Set-Point Flow Switches

Factory set to a specific set point so you don't need to adjust them

47 products

Fixed-Set-Point Flow Switches for Drinking Water

Factory set to activate when your drinking water system reaches a fixed level

1 product

Fixed-Set-Point High-Pressure Flow Switches

Factory set to activate at a specific level while monitoring high-pressure lines

20 products

Flow Switches with Sight

Look through the window to monitor a rotor that spins when flow is present

21 products

Fixed-Set-Point Hazardous-Location Flow Switches

Factory set to activate at a specific flow rate and safe to use around flammable gases

10 products

Variable-Pressure Flow Switches

Accurate even in applications where pressure fluctuates regularly

22 products

Flow Switches

Turn equipment on or off when flow rate reaches a set point

6 products

Electronic Flow Switches

Send digital signals to your PLC when they reach a set flow rate

2 products

Hazardous-Location Flow Switches

UL listed for environments with flammable gases and combustible dust

2 products

High-Pressure Flow Switches

Rated for pressures up to 3,600 psi

6 products

Insertion-Mount Flow Switches

Insert into tees or pipe outlets so you don't need to disassemble your pipeline

7 products

Fixed-Set-Point Insertion-Mount Flow Switches

Come set to a specific set point and don’t require you to disassemble your pipeline

3 products

Hazardous-Location Insertion-Mount Flow Switches

UL listed for environments with flammable gases and combustible dust

4 products

Electronic Insertion-Mount Flow Switches

Insert into tees or pipe outlets and send digital signals to your PLC

8 products

Sanitary Electronic Insertion-Mount Flow Switches

Rated IP67 and IP69K to withstand frequent washdowns

4 products

Other Products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

66 products