Water Meters | McMaster-Carr

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System of Measurement

Pipe Size

For Use With

Screws and Nuts

Hydraulic Fluid

Display Type

Thread Type

UN/UNF (SAE Straight)

Fitting Connection

Spec Image

Spec Image

Spec Image

Calibrated With

Maximum Flow

Body Material

Stainless Steel

Material

Samarium Cobalt

Stainless Steel

Tungsten Carbide

Connects To

Maximum Temperature

Less than 150° F

150° F to 174.9° F

175° F to 199.9° F

200° F to 249.9° F

250° F or greater

Measurement Unit

Cubic Centimeters

Cubic Meters per Hour

Cubic Meters per Minute

Gallons per Hour

Gallons per Minute

Inches of Mercury

Inches of Water

Kilograms per Square Centimeter

Liters per Minute

Liters per Second

Mounting Position

Gender

Connection Location

Maximum Pressure

Less than 1,000 psi

1,000 psi to 1,999.9 psi

2,000 psi to 2,999.9 psi

3,000 psi to 9,999.9 psi

10,000 psi or greater

Less than 10,000 kPa

10,000 kPa to 19,999 kPa

20,000 kPa to 29,999 kPa

30,000 kPa to 99,999 kPa

100,000 kPa or greater

Inlet ID

Measures

Differential Pressure

RoHS

Compliant with Exemptions

Minimum Temperature

-50° F or less

-49° F to -25° F

-24° F to -1° F

0° F to 49° F

50° F or greater

Fitting Material

Stainless Steel

REACH

Export Control Classification Number (ECCN)

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

DFARS Specialty Metals

How can we improve?

5,852 Products

Flowmeters

Totalizers

Totalizers

Measure the total amount of liquid flowing through your system

Totalizers for Drinking Water

Totalizers for Drinking Water

Measure the cumulative amount of drinking water flowing through the system

Flanged Totalizers for Drinking Water

Flanged Totalizers for Drinking Water

Flanged ends form a secure fit on large pipelines

High-Temperature Totalizers

High-Temperature Totalizers

Measure the total amount of liquids flowing at a temperature up to 200° F

Totalizers with Digital Display

Totalizers with Digital Display

Check the cumulative volume and batch total on an easy-to read display

Remote-Reading Totalizers for Drinking Water

Remote-Reading Totalizers for Drinking Water

A display shows total flow volume from sensors up to 250 feet away

High-Temperature Totalizers with Digital Display

High-Temperature Totalizers with Digital Display

Show a digital display of the total volume for liquids up to 200° F

Totalizers for Oil

Totalizers for Oil

Measure the total amount of light oil

Totalizers with Digital Display for Fuel

Totalizers with Digital Display for Fuel

Check fuel batches and cumulative totals at a glance on the easy-to-read display

Totalizers for Grease

Totalizers for Grease

Install on grease guns to measure grease dispensing and reduce waste

Totalizers for Fuel

Totalizers for Fuel

Track batches and the total amount of gasoline, diesel fuel, and kerosene

Flowmeter/Totalizers

Flowmeter/Totalizers

Flowmeter/Totalizers

Determine the flow rate and total volume of liquid with the same meter

Socket-Connect Flowmeter/Totalizers

Socket-Connect Flowmeter/Totalizers

Install in a PVC piping system to measure the rate and volume of liquid

Flanged Flowmeter/Totalizers

Flanged Flowmeter/Totalizers

Install in large, high-flow pipelines to measure flow rate and total volume

Flowmeter/Totalizers for Oil and Fuel

Flowmeter/Totalizers for Oil and Fuel

Measure the rate and volume of oil, gasoline, diesel fuel, and kerosene

Socket-Connect Flowmeter/Totalizers with Remote Display

Socket-Connect Flowmeter/Totalizers with Remote Display

Place the display up to 25 feet away from the sensor

Flowmeter/Totalizers with Sanitary Quick-Clamp Fittings

Flowmeter/Totalizers with Sanitary Quick-Clamp Fittings

Easy to remove for cleaning and maintenance

High-Temperature Flowmeter/Totalizers

High-Temperature Flowmeter/Totalizers

Measure the rate and total volume of liquids at temperatures up to 200° F

Flowmeters

Flowmeters

Check the flow rate of liquids in your system

Panel-Mount Flowmeters

Panel-Mount Flowmeters

Install on instrument panels

Any-Orientation Flowmeters

Any-Orientation Flowmeters

Measure flow rate regardless of mounting orientation

Easy Read Flowmeters

Easy Read Flowmeters

The large dial is easier to read at a distance than a scale

Impact-Resistant Panel-Mount Flowmeters

Impact-Resistant Panel-Mount Flowmeters

Install on instrument panels where they might be exposed to damaging impact

Portable Noncontact Flowmeters

Portable Noncontact Flowmeters

Clamp onto pipes to spot-check the rate without disassembling your system

High-Temperature Flowmeters

High-Temperature Flowmeters

Measure the flow rate of liquids up to 212° F

Flowmeters for High-Purity Liquids

Flowmeters for High-Purity Liquids

Made of plastic and rubber to avoid contaminating liquids, such as deionized water

Insertion Flowmeters

Insertion Flowmeters

Drill a hole to install these flowmeters without disassembling the pipeline

High-Temperature and Pressure Flowmeters

High-Temperature and Pressure Flowmeters

Measure liquids that are too hot or pressurized for standard flowmeters

Clog-Resistant Flowmeters

Clog-Resistant Flowmeters

Won't clog when measuring liquid with particles up to 1/8" in diameter

High-Temperature Flowmeters with Digital Display

High-Temperature Flowmeters with Digital Display

Monitor the flow rate of liquids up to 200° F from an easy-to-read digital display

Socket-Connect Flowmeters

Socket-Connect Flowmeters

Install the unthreaded ends of these flowmeters into a PVC piping system

High-Temperature Panel-Mount Flowmeters

High-Temperature Panel-Mount Flowmeters

Install on an panel to measure the rate of liquids as hot as 212° F

Flowmeters with Flow Switch

Flowmeters with Flow Switch

Turn equipment on and off or activate an alarm when liquid reaches a set flow rate

Flanged Flowmeters

Flanged Flowmeters

Install securely in large pipelines

Impact-Resistant Flowmeters

Impact-Resistant Flowmeters

A stainless steel housing protects the glass body from shattering

Flowmeters for Oil

Any-Orientation Flowmeters for Oil

Any-Orientation Flowmeters for Oil

Measure flow rate regardless of mounting orientation

High-Temperature and Pressure Flowmeters for Oil

High-Temperature and Pressure Flowmeters for Oil

Measure oil that is too hot or pressurized for standard flowmeters

Flow- and Pressure-Testing Flowmeters for Oil

Flow- and Pressure-Testing Flowmeters for Oil

Find worn components or leaks by testing the flow at different pressures

Other Products

Flow Transmitters

Flow Transmitters

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

Flow Sights

Visually confirm flow and inspect liquid color and clarity

Pressure Gauges

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

Chemistry Meters

Chemistry Meters

Take water-chemistry measurements more precisely than test strips and swabs

Water Meter Wrenches

Water Meter Wrenches

Turn meter couplings and shut-off valve nuts on water meters

Differential Pressure Transmitters

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

Flow Switches

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

Pressure Transmitter Displays

Pressure Transmitter Displays

Remotely view pressure readings sent from a transmitter

Pressure Transmitters

Pressure Transmitters

Send pressure readings to controllers and remote displays

Differential Pressure Gauges

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

Calibration Columns

Calibration Columns

Calibrate the flow rate of metering pumps

Pressure and Vacuum Transmitters

Pressure and Vacuum Transmitters

Convert pressure and vacuum measurements into a signal sent to remote displays and controllers

Multifunction Chemistry Controllers

Multifunction Chemistry Controllers

Use pH or oxidation reduction potential (ORP) levels to turn equipment on or off

Conductivity Controllers

Conductivity Controllers

Turn pumps, mixers, and valves on and off based on a solution’s conductivity

Pressure Test Gauges

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

Vacuum Transmitters

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)