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In-line Flow Meters for Use with Water and Air


Item# FL-515

In stock

Lead Time (If not in stock): 13 weeks
In-line Flow Meters for Use with Water and Air FL-515 FL-515
  • Direct Reading in GPM, LPM, SCFM, and SLPM
  • Scales for Air and Water
  • Fluid is Always in View
  • Mount in Any Position

FL-515 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.

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

The FL-500 Series in-line flow meters feature rugged construction, easy installation and direct reading flow rates for water and air at atmospheric and 90 psi pressures. For added versatility, the FL-500 Series can be ordered with an electric proximity switches (order separately, see the FL-500-R for complete details) to signal specific flow rates. Settings are easily adjustable with a screwdriver.

Accuracy: ±5% FS
   Flow tube and float: PVC
   Internal Wetted Parts: 316 SS end fittings
   Brass, Female NPT Seals: FKM
Liquid Service: 200 psig @ 21°C (70°F)
Gas Service: 100 psig @ 21°C (70°F)
Maximum Temperature: 66°C (150°F) @ 25 psig
Pressure Drop: 4 psig Full Scale
Dimensions: 177.8 mm (7") long
   FL-505 thru FL-515: 50.8 (2") diameter
   FL-530 thru FL-550: 76.2 (3") diameter

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Rated 4 out of 5 by from Worked Great Worked great, no issues - quick shipping - would purchase again
Date published: 2024-05-13
Rated 5 out of 5 by from Great as always Excellent product, we always purchase these from Omega.
Date published: 2024-05-06
Rated 5 out of 5 by from Product Satisfaction Simple to install and provided the level of information we wanted. Unit is sturdy and is being used in an industrial area. Now that this unit has been installed and accepted, the appearance is that another five units will also be ordered for other areas of the facility.
Date published: 2023-05-25
Rated 5 out of 5 by from works great! Works great for measuring airflow into a yeast propagation tank. Simple, easy, inexpensive.
Date published: 2022-09-29
Rated 5 out of 5 by from Awesome gauges for the prices Awesome product measured my air drill CFM well. Only rated to 100 psi but it doesnt explode if runs a bit over but not recommended. Theirs burlier models but the price is always really cheap comparitively
Date published: 2020-07-11
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Proximity Switches for Use With FL-505, FL-510, FL-515 Flow Meters
7 In Stock
Proximity Switches for Use With FL-530, FL-540, FL-550 Flow Meters
2 In Stock
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