Flowmeter Regulators | McMaster-Carr

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323 Products

About Flowmeters and Totalizers

Flowmeters measure the rate of flow for a liquid or a gas. Totalizers measure the cumulative flow volume. Flowmeter/totalizers display both the flow rate and the cumulative flow volume.

Easy-Read Tank-Mount Pressure-Regulating
Valves with Flowmeter for Inert Gas

Flowmeters let you see the gas flow rate from a distance.

Tank-Mount Pressure-Regulating
Valves with Flowmeter for Inert Gas

Commonly used in TIG welding where gas flow/coverage is a concern.

Flowmeters for Oxygen

To prevent contaminating your oxygen line, these flowmeters are specially cleaned and bagged.

Panel-Mount Flowmeters for Gases

Monitor the flow rate of air and other gases from your instrument panel—these flowmeters have fittings on the back for panel mounting.

Panel-Mount Flowmeters for
Gases with Conversion Chart

Instead of a scale calibrated to a specific gas’ flow rate, these flowmeters measure in millimeters and include a conversion chart, so you can check the flow rate of water and multiple gases without any calculations.

Impact-Resistant Panel-Mount
Flowmeters for Gases

A case protects these flowmeters from blows and other impact as they measure the flow rate of gas. Install them in instrument panels using the fittings on the back.

Panel-Mount Flowmeters

Fittings on the back let you install these flowmeters in instrument panels.

Impact-Resistant Panel-Mount Flowmeters

Install these flowmeters in an instrument panel where they might be exposed to blows and other impact.

High-Temperature Panel-Mount Flowmeters

Install these flowmeters in an instrument panel to measure the flow rate of hot water and other liquids reaching up to 212° F.