Threaded Flowmeters | McMaster-Carr

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Pressure-Regulating Valves

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1,417 Products

Flowmeters

Check the flow rate of liquids in your system

186 products

Panel-Mount Flowmeters

Install on instrument panels

151 products

Easy Read Flowmeters

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

50 products

Any-Orientation Flowmeters

Measure flow rate regardless of mounting orientation

50 products

High-Temperature and Pressure Flowmeters

Measure liquids that are too hot or pressurized for standard flowmeters

19 products

High-Temperature Flowmeters

Measure the flow rate of liquids up to 212° F

21 products

High-Temperature Flowmeters with Digital Display

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

10 products

Impact-Resistant Panel-Mount Flowmeters

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

14 products

Portable Noncontact Flowmeters

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

4 products

Clog-Resistant Flowmeters

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

7 products

Flowmeters for High-Purity Liquids

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

8 products

Impact-Resistant Flowmeters

A stainless steel housing protects the glass body from shattering

9 products

Flowmeters with Flow Switch

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

12 products

High-Temperature Panel-Mount Flowmeters

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

18 products

Flowmeters for Gases

Panel-Mount Flowmeters for Gases

Install on an instrument panel to monitor the rate of air and other gases

136 products

Flowmeters for Gases

Measure the rate at which air and other gases move through your pipes

47 products

Easy-Read Flowmeters for Gases

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

8 products

Impact-Resistant Panel-Mount Flowmeters for Gases

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

19 products

Panel-Mount Flowmeters for Gases with Conversion Chart

Measure the flow of water and multiple gases without calculations

36 products

Variable-Pressure Flowmeters for Gases

Measure the flow rate in applications where pressure fluctuates

30 products

Flowmeters for Oxygen

Specially cleaned and bagged to prevent oxygen line contamination

9 products

Flowmeter/Totalizers

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

40 products

Flowmeter/Totalizers for Oil and Fuel

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

23 products

Socket-Connect Flowmeter/Totalizers with Remote Display

Place the display up to 25 feet away from the sensor

9 products

High-Temperature Flowmeter/Totalizers

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

8 products

Flowmeters for Oil

High-Temperature and Pressure Flowmeters for Oil

Measure oil that is too hot or pressurized for standard flowmeters

53 products

Any-Orientation Flowmeters for Oil

Measure flow rate regardless of mounting orientation

12 products

Flow- and Pressure-Testing Flowmeters for Oil

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

4 products

Totalizers

Measure the total amount of liquid flowing through your system

12 products

Totalizers for Drinking Water

Measure the cumulative amount of drinking water flowing through the system

7 products

High-Temperature Totalizers

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

5 products

Totalizers with Digital Display

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

3 products

Totalizers for Grease

Install on grease guns to measure grease dispensing and reduce waste

1 product

Totalizers for Natural, Propane, and Butane Gas

Measure the total amount of natural gas, propane, and butane

2 products

Totalizers with Digital Display for Fuel

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

2 products

Totalizers for Fuel

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

2 products

High-Temperature Totalizers with Digital Display

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

8 products

Remote-Reading Totalizers for Drinking Water

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

10 products

Totalizers for Oil

Measure the total amount of light oil

2 products

Other Products

Flow Transmitters

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

57 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

19 products

Flow Sights

Visually confirm flow and inspect liquid color and clarity

146 products

Flow Switches

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

156 products

Calibration Columns

Calibrate the flow rate of metering pumps

14 products

HVAC Switches

Control and monitor airflow in HVAC systems automatically

2 products