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Variable Area Flow Meters

66 Products
Variable Area Flowmeters for Air, Water & Gas - Series DR

Direct Reading Glass Flowmeters are ideal for direct flow measurement of air, water, and other commonly used gases. Shipped completely assembled and includes mounting hardware.

Nitrogen - Direct Read, Panel Mount Variable Area Flow Meters

Discover the Nitrogen Direct Read Panel Mount Flow Meters, designed for accurate flow measurement in various applications, ensuring reliability and ease of use.

Rotatable Flowmeters for Air/Water/Gases – Direct Read with Shield

Rotatable Scale Flowmeters are ideal for the direct flow measurement of air, water, and other commonly used gases. Features borosilicate glass tubes

Pneumatic In-line Flowmeters With Multi-pressure Flow Scales

OMEGA's multi-pressure pneumatic flowmeters feature ananodized aluminum body design and easy installation. For air/compressed gas applications at pressures up to 1000 psig.

High Accuracy Stainless Steel Variable Area Flow Meters

Flow Meters for air and water applications. Accuracy: ± 3% of full scale Repeatability: ± 1% Wetted Parts:316 SS, borosilicate glass, EPR O-Rings Max. Temperature: 200°F

Acrylic Variable Area Flow Meters

FL7000 flow meters are precisely machined from solid acrylic blocks. They are available in 50, 75, 100, 127, and 250 mm scale lengths with accuracies between 2 and 6%.

Heavy Duty Flowmeters With Stainless Steel Enclosures

The Omega FL900 series are heavy duty flowmeter with SS enclosures, unique float stop design allowing internals to be reomoved and replaced without disturbing the tube.

Direct Read Acrylic Variable Area Flow Meter Kits

The FL-2500 Series direct read flow meter kits offer include seven interchangeable direct read scales for air, water, Argon, CO, Helium, Nitrogen and Oxygen.

Water - Direct Read, Panel Mount Variable Area Flow Meters

Discover the Water Direct Read Panel Mount Variable Area Flow Meters, designed for easy flow measurement in various applications. Reliable and user-friendly for accurate readings.

IF Series Direct Reading Flowmeters for Water & Air (116 GPM, 250 SCFM)

Industrial Direct Reading Flowmeters are directly measure flow rates for water and for air service. Good for gas or liquid metering and industrial pneumatic or hydraulic systems.

PTFE Variable Area Flow Meters with PTFE Valves

The FL-3000 and FL-3100 flowmeters are designed for applications which involve corrosive or ultra-pure fluids. The meters are equipped with built-in PTFE needle valves.

Easy-View Flow Meters with Adjustable Flow Alarm

The FL9000-AC flowmeters are ideal for a wide range of flow monitoring applications. Additional features include an adjustable flow alarm externally mounted on the meter.

Hydrogen - Direct Read, Panel Mount Variable Area Flow Meters

Discover the Hydrogen Direct Read Panel Mount Flow Meters, designed for accurate flow measurement in a compact, easy-to-install format. Perfect for various applications.

Economical In-Line Variable Area Flow Meters

The FL-7000A Series of General purpose flowmeters is designed to provide accurate flowrate indication for oil and water. These flowmeters can be mounted in any position.

Variable Area In-line Liquid Flow Meters

The FLMW and FLMH flowmeters can be installed in the fluid line without flow straighteners. The spring-and-piston type assembly protects them against changes in viscosity.

Custom Multitube Flow Systems for Metering & Mixing, Up to 6 Tubes

The Multitube Flow System supports up to six flow tubes with varying capacities and patterns, suitable for multichannel metering, mixing, or monitoring.

Variable Area Flow Meter For Liquids

Made of PTFE, PFA, and PCTFE, the Model FL-10 liquid flow meter is excellent for high-purity flow applications or with corrosive liquids. Available with or without a valve.

Variable-Area Flowmeter for Gases, ± 5% Accuracy, Durable Aluminum, 3000 psig

Variable-Area Flowmeter for Gases measures gas flow rates. Applications include backflow prevention, heat exchangers, oil & gas equipment, and hydraulic equipment.

Glass Flowmeters for Air/Water, 1.5X Magnification, Durable, Industrial

High Flow Glass Flowmeter offers a solution to the problem of fluid flow indication at higher capacity levels. Designed to withstand even the harshest industrial applications.

Flow Rate Transmitter, 4-20 mA/0-5 Vdc, for Waste Water & Process Control

The Series HFT In-Line Transmitters offer reliable flow rate monitoring for waste water and process control, featuring versatile installation and rugged construction.

Variable Area Flow Meters

Variable Area Flow Meters support flow measurement, switching, control, or installation work in liquid, gas, air, water, and process systems. Products in this category span PTFE, PFA, and PCTFE liquid meters, acrylic variable area kits, inline meters with limit switches, easy-view water and oil meters, multi-tube and gas proportioning meters, acrylic air and water meters, oxygen direct-read panel meters, and meters with valves or alarm modules.

Applications include laboratory gas flow, oxygen panels, water and oil flow indication, high-purity chemical lines, corrosive liquid measurement, process sampling, gas blending, purge flow, and local visual flow checks. Products represented in the source data include Omega Engineering and Dwyer Instruments.

Applications include:

  • Read flow visually from a float position
  • Measure compatible liquids, gases, air, water, and oxygen
  • Use acrylic, PTFE, PFA, PCTFE, or panel-mount construction
  • Add valves, limit switches, alarms, or multi-tube assemblies
  • Support laboratory, process, and gas proportioning work
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