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Variable Area Flow Meters

68 Products
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.

Custom Mini-Master® Flowmeters for Gas/Liquid, High Chemical Resistance

Discover the Custom Mini-Master® Flowmeters, designed for gas and liquid applications. Durable, chemical-resistant construction ensures easy cleaning and precise readings.

Variable Area Flowmeters for Gas & Liquid – Universal Scale, 6-Turn Valve

Variable Area Glass Flowmeters feature clear scales and are suitable for measuring carrier gases, liquids, and gas in pilot plants and process flows.

Variable Area Flow Meter with Easy Tube Replacement for Flexible Field Use

The OMEGA's precision variable-area flow meters for air, water, and gases feature an easy-to-read millimeter scale and are supplied with correlation charts for air and water

Durable In-Line Flow Monitors for Gases, Oil, or Water - Series HF

In-Line Flow Monitors are ideal for direct measurement for a range of compatible gases, oil, or water based liquids. Applications include pulp and paper and heating loop flow.

Variable Area Flow Meter for Accurate Measurement of Air and Liquids

The OMEGA's precision variable-area flow meters for air, water, and gases have up to ± 2% of full scale accuracy. (Models ending in "07" or "45" have ± 5% FS accuracy).

Polysulfone Flowmeter, Dual Scale GPM/LPM, Max 212 °F, 150 psi

The Polysulfone Flowmeter features a durable, corrosion-resistant body and a protective shield, ensuring low maintenance and long-lasting performance in various applications.

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.

Variable Area In-line Flow Meters For Air

The FLMG flow meters feature rugged construction and direct-reading flow rates of air. The units are calibrated at 100 psi pressure, idea for most compressed air applications.

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.

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.

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.

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.

Stainless Steel Frame Industrial Variable Area Flow Meters

The FLD100 Heavy-duty flowmeters are fully enclosed in a brushed stainless steel case. Ideal for industrial applications with flow rates up to 116 GPM and 250 SCFM.

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.

Oxygen - Direct Read, Panel Mount Variable Area Flow Meters

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

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.

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.

Flowmeter for Liquids, ± 2% Accuracy, Metal, 3000 psig, 1/4" to 1" Conn.

The Series DTFW Flowmeter for Liquids offers ±2% accuracy with durable metal construction, suitable for pressures up to 3000 psig. Available in various connection sizes.

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.

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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