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Acrylic Variable Area Flow Meters For Air or Water

Acrylic Flow Meter for Air, 0.1-1 LPM, Without Valve


Item# FLK-2211-NV

In stock

Lead Time (If not in stock): 4 weeks
Acrylic Flow Meter for Air, 0.1-1 LPM, Without Valve FLK-2211-NV FLK-2211-NV
  • Bulkhead nuts attach directly to inside panel 
  • Permanent ,easy to read screen printed scales
  • Installeds on a panel 
  • Calibrations in GPH, LPM, SCFM, CCM, SCCM

FLK-2211-NV Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Media Type
Gas Flow Range
Liquid Flow Range
Valve Included
Process Connection Type
Process Connection Size
Wetted Materials
Max Operating Pressure
Max Process Temperature

The FLK2000 Series Flowmeter bodies are cut and precision machined from solid, clear acrylic plastic blocks. The FLK2000 Series has a maximum temperature of 140°F (60°C) and a maximum pressure rating of 125 psi and are the ideal choice for medical and laboratory applications. Units are available with or without valves.

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Rated 5 out of 5 by from Solid Quality Rotometer and Great Price Solid quality rotometer. First time buying from Omega. Good customer service, better pricing than competition and quick delivery which allowed me to drop ship and install at the field site to get the air flow properly set for the process.
Date published: 2023-06-26
Rated 5 out of 5 by from worked perfect This Acrylic Flow Meter was just as described. It also worked perfect for our application.
Date published: 2022-10-10
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What is the primary difference between the 'FLK-' flow meters and the 'FL-' flow meters? I see the inlet pressure difference but is there some reason for choosing, for example, the FL-2011 (0.1-1 LPM) over the FLK-2211 (also 0.1-1 LPM)?

Asked by: KenW
Thank you for your inquiry! These meters are very similar and are interchangeable in many applications. The meters differ slightly in wetted materials and pressure which are the only major differences.
Answered by: Application Engineer JM
Date published: 2024-02-19

FLK-2215 are the 1/8 npt male or female. Where are panel mounting holes located dimensional and what size are they? Can I get a specification/dimensional drawing pdf?

Asked by: Louise
Thank you for your inquiry. Please email the Flow Group at and can provide an updated manual with the information requested.
Answered by: Applications Engineer JJC
Date published: 2024-03-01
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