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OEM Style Acrylic Variable Area Flow Meters
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- 50 mm, 75 mm, 127 mm, and 250 mm (1.97', 2.96', 5' and 9.85') Scale Lengths
- Floats Are Rod-Guided in Most Models
- Metering Valves Available
- Rear Inserts Provided for Panel Mounting
FL4203 Model Options
View all modelsEdit 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
Accuracy
Process Connection Type
Process Connection Size
Wetted Materials
Max Operating Pressure
Max Process Temperature
Valve Included
Category
Scale
Features
FL4000 OEM-style acrylic Variable Area Flow Meters are precisely machined from rugged, solid acrylic blocks for superb durability. They are available in 50 mm, 75 mm, 127 mm, and 250 mm scale lengths (1.97, 2.96, 5 and 9.85') to provide desired accuracies from 2% to 6%. Designed for front-panel mounting, the rear ports extend through the panel for easy hookup. Mounting threads are also provided. Units are available with and without valves.
SPECIFICATIONS
Construction: Acrylic tube, 316 SS float and guide rod (no guide rod for FL4211 through FL4215 air meters), PVC end fittings (brass on FL4200 Series), EPR O-rings, optional brass valve
Max Pressure/Temperature:
Water Ranges: 125 psig @ 21°C (70°F); 54°C (130°F) at 0 psig
Air ranges: 100 psig @ 21°C (70°F); 38°C (100°F) @ 0 psi
Full Scale Accuracy/Repeatability:
FL4200: 6/2%
FL4300 and FL4400: 4/1%
FL4500: 3-1/2%
FL4600: 2-1/2%
Rated 4 out of
5
by
beerme from
greetings earthling
the flowmeter works well for our application and is of sturdy construction. the needle valve gives fine control of flowrate.
Date published: 2016-02-09
Rated 5 out of
5
by
AlejoCL from
A+++ quality
I have a lot of flow meters including chinese and american models, the quality of Omega is greater than all of them. Even the box of the product is more atractive and have a very good presentation.
Date published: 2017-05-23
Rated 5 out of
5
by
mikew from
Simple and bullet proof
We use these in several places and they work well.
Date published: 2016-07-21
Rated 4 out of
5
by
Calibr8tor from
As Advertised
Simple yet effective. A value when measurement uncertainty is not important.
Date published: 2016-05-17
Rated 4 out of
5
by
Brian M from
Good quality for the price
Well built meter for general purpose, good value for price point
Date published: 2023-08-27
Rated 4 out of
5
by
Kevin K in SC from
Fits the purpose
Looks to be able to do the job. Shipped quickly which is what I needed.
Date published: 2022-11-07
Rated 4 out of
5
by
andres from
rotametro
I wil happy becouse excelent product and couality
ty
Date published: 2016-03-07
Does the FL4513-V flowmeter have 1/4" NPT female AND 1/2" NPT male Input connections. The website shows the 1/4" NPT F. Most of these style flowmeters have a smaller Female thread on the inside and a larger Male thread on the outside of the Input Ports.
Thank you for your inquiry! The FL4513-V will has both 1/4" FNPT and 1/2" male NPT connection sizes.
Date published: 2021-12-13
can this type of flowmeter be used for oxygen and propane
Thank you for your inquiry! These flow meters can be used for a variety of different gases including oxygen and propane. Since these models are scaled for air, the readings will have to be corrected by factoring in the specific gravity of the other gases.
Date published: 2022-10-19
What is the best rotometer to use for ozone gas
Thank you for your inquiry. In order to select the best meter for your application we will need your complete application conditions. Please send your process conditions (ie flow rate range, temperature, pressure and media type) to flow@omega.com and our Flow Engineering team can help you select a product for your application.
Date published: 2019-10-29
