1/2 Pipe Size Flowmeters

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381 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.

Flowmeters

Check the flow rate of liquids in your system.

Easy-Read Flowmeters

A large dial instead of a scale makes it easier to read the flow rate from a distance.

Any-Orientation Flowmeters

A spring piston instead of a float allows these flowmeters to measure flow rate in any mounting orientation.

High-Temperature Flowmeters

Measure the flow rate of liquids up to 212° F.

High-Temperature and Pressure Flowmeters

High-Temperature Flowmeters with Digital Display

Check the flow rate of liquids up to 200° F from an easy-to-read digital display instead of a scale or dial.

Clog-Resistant Flowmeters

Liquids with particles up to 1/8" in diameter won't clog this flowmeter.

Flowmeters for High-Purity Liquids

To avoid metal contaminating liquids, such as deionized water, these flowmeters are made entirely of plastic and rubber.

Impact-Resistant Flowmeters

A 304 stainless steel case protects these flowmeters from blows that could shatter the glass body.

Flowmeters with Flow Switch

Monitor the flow rate of liquids and use the integrated switch to turn equipment on and off, or activate an alarm when liquid reaches a set flow rate.

Flanged Flowmeters

Install these flowmeters securely into large pipelines with the flanged ends.

Panel-Mount Flowmeters

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

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.

Portable Noncontact Flowmeters

Often used to pinpoint flow issues, these flowmeters clamp onto pipe, so you can spot-check the flow rate at different points without disassembling your system. They measure by tracking the time it takes for ultrasonic waves to pass through your liquid, so they don’t need to come into contact with your liquid.

Flowmeters for Gases

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.

Flowmeters for Gases

Designed for air and other gases, these flowmeters measure the rate at which they're moving through your pipes.

Easy-Read Flowmeters for Gases

Instead of a scale, these flowmeters have a large dial that makes it easy to read the flow rate of your gas from a distance.

Variable-Pressure Flowmeters for Gases

Measure the flow rate of gases in applications where pressure fluctuates, such as compressed air systems.

Flowmeters for Oil

High-Temperature and Pressure Flowmeters for Oil

If the oil in your line is too hot or pressurized for standard flowmeters, use these flowmeters to measure the flow rate.

Any-Orientation Flowmeters for Oil

With a spring piston instead of a float, these flowmeters measure the flow rate of oil in any mounting orientation.

Flow- and Pressure-Testing Flowmeters for Oil

Often used to find worn components or leaks, these flowmeters have a valve, so you can test the flow of oil from pumps and other equipment at different pressures.

Flow Transmitters

High-Accuracy Flow and Temperature Transmitters

Also known as magmeters, these transmitters use a magnetic field to measure flow rate and temperature with high accuracy.

Flow and Temperature Transmitters

Send flow rate and temperature measurements simultaneously to a programmable logic controller (PLC), data logger, or other receiving device.

Flow Transmitters with Sight

Send flow rate data using these transmitters while also being able to visually confirm liquid is flowing.

Flow, Pressure, and Temperature
Transmitters for Gases

Measure and transmit flow rate, pressure, and temperature of industrial gases, such as air, argon, CO2, and nitrogen, flowing through your system.

Flowmeter/Totalizers

Determine the flow rate and total volume of liquid flowing through your system with the same meter.

Socket-Connect Flowmeter/Totalizers

The unthreaded ends of these flowmeter/totalizers install into a PVC piping system, so you can measure the flow rate and volume of liquid passing through your system.

Socket-Connect Flowmeter/Totalizers
with Remote Display

Often used in hard-to-access areas, these flowmeter/totalizers have a display that can be placed up to 25 feet from the sensor. They connect to unthreaded PVC pipe.

High-Temperature Flowmeter/Totalizers

With one meter, these flowmeter/totalizers measure the flow rate and total flow volume of high-temperature liquid up to 200° F.

Flowmeter/Totalizers for Oil and Fuel

Use these flowmeter/totalizers to measure both the flow rate and total flow volume of oil, gasoline, diesel fuel, and kerosene.

Totalizers

Totalizers for Drinking Water

Meeting NSF/ANSI 61, these totalizers measure the cumulative amount of drinking water flowing through them.

Remote-Reading Totalizers for Drinking Water

Often used in hard-to-access areas, these totalizers let you monitor the total amount of drinking water flowing through them up to 250 feet away.

Totalizers

Measure the total amount of liquid flowing through these totalizers.

High-Temperature Totalizers with Digital Display

The digital display on these totalizers makes it easy to check the total amount of high-temperature liquid—up to 200° F—passing through your system.

Flow Sights for Water, Oil, Air, and Inert Gas

Flow Sights with Indicator for Water and Oil

The indicator moves when flow is present, so it’s easy to visually confirm flow from a distance.

Flow Sights for Water and Oil

Often used in cooling, lubrication, and process systems.

Compact Flow Sights with Indicator for Water and Oil

For visual confirmation of flow from a distance, these sights have a ball indicator that moves when flow is present.

Compact Flow Sights for Water and Oil

The low-profile body fits in areas with limited clearance.

Full-View Flow Sights for Water and Oil

A large tubular window provides an unobstructed view of liquid color, clarity, and movement from multiple angles.

Full-View Flow Sights with Indicator for Water and Oil

A ball indicator increases the visibility of flow for checking at a distance.

High-Pressure Flow Sights for Water and Oil

Rated for more than double the pressure of standard flow sights, these can withstand pressures up to 400 psi.

High-Temperature Flow Sights for Water and Oil

Withstand twice the temperature of standard sights. These are rated for temperatures up to 400° F.

Quick-Clean Flow Sights for Water

To maintain a clear view of your process media without disrupting flow, twist the tubular window to clear debris and buildup with the internal wipers.

Panel-Mount Flow Sights for
Water, Oil, and Inert Gas

The included mounting ring lets you install these sights in instrument panels.

Flow Sights for Chemicals

Built to withstand harsh chemicals.

Compact Flow Sights for Chemicals

About half the height of other flow sights for chemicals, these fit in areas with limited clearance.

Calibration Columns

Calibrate the flow rate of metering pumps.

Flow Switches

Fixed-Setpoint Flow Switches for Drinking Water

Factory set to activate equipment when your drinking water system reaches a fixed level, these flow switches are easier to install than adjustable flow switches.

Flow Switches with Sight

For monitoring flow at a glance, these switches have a plastic window with a rotor indicator that spins when there’s flow.

Variable-Pressure Flow Switches

Accurate even in applications where pressure fluctuates regularly, these flow switches split flow into two paths and measure their difference in pressure drop to calculate the flow rate of liquid.

Fixed-Setpoint High-Pressure Flow Switches

Quicker to install than adjustable flow switches in high-pressure lines, these switches come factory-set to activate or deactivate equipment at a specific level. They compensate for the viscosity and density changes of liquid.

High-Pressure Flow Switches

Rated for pressures up to 3,600 psi, these switches measure the flow rate of liquids to activate or deactivate equipment when your flow rate reaches a set point.

High-Pressure Flow Switches for Oil

Measure the flow rate of oil at pressures up to 3,600 psi to activate or deactivate equipment.

High-Pressure Flow Switches for Gases

Good for compressed-air systems and other compressed gases that reach up to 3,600 psi, these switches measure the flow rate to activate or deactivate equipment when they reach a set point.

Fixed-Setpoint Hazardous Location Flow Switches

Safe to use where flammable gases and combustible dust may be present, these switches activate or deactivate when your flow reaches a factory-set level. All are UL listed for hazardous environments.

Hazardous Location Flow Switches

UL listed for use where flammable gases or combustible dusts may be present, these flow switches activate or deactivate equipment when your flow rate reaches a set point.

Insertion Flow Switches

Avoid complicated inline installation—these flow switches insert into a tee or pipe outlet, so you don’t need to disassemble your pipeline.

Electronic Insertion Flow Switches

Instead of disassembling your system for inline installation, thread these flow switches onto a mounting adapter and insert them into a pipe tee or pipe outlet. They send digital signals to your programmable logic controller (PLC) to activate automated controls or alarms when they reach a set flow rate.

Fixed-Setpoint Insertion Flow Switches

Easy to install, these flow switches come already set to a specific set point and don’t require you to disassemble your pipeline.