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In-line Flow Meters for Use with Water and Air


Item# FL-550-BSPT

In stock

Lead Time (If not in stock): 5 weeks
In-line Flow Meters for Use with Water and Air FL-550-BSPT FL-550-BSPT
  • Direct Reading in GPM, LPM, SCFM, and SLPM
  • Scales for Air and Water
  • Fluid is Always in View
  • Mount in Any Position
  • Easy to Clean and Maintain
  • ±5% Full Scale Accuracy

FL-550-BSPT 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
Max Operating Pressure
Media Type
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 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
5 In Stock
Proximity Switches for Use With FL-530, FL-540, FL-550 Flow Meters
4 In Stock
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