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FLD-Carbon-dioxide-Series

Carbon Dioxide- Direct Read, Panel Mount Variable Area Flow Meters

Models In Stock
  • Panel-mount variable-area flow meter calibrated for CO₂ service with direct-read scale
  • ±5% full-scale accuracy, repeatability ±0.25% and turn-down ratio 10:1
  • Rated for up to 200 psi and 121 °C (250 °F) for robust gas process applications
  • Wetted parts in 316 SS or anodized aluminum, borosilicate glass flow tube and built-in 6-turn valve
FLD-Carbon-dioxide-Series
From $ 396.74
Models In Stock
Carbon Dioxide- Direct Read, Panel Mount Variable Area Flow Meters FLD Carbon dioxide-Series FLD Carbon dioxide-Series
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Product Overview
  • Accuracy ± 5 %
  • Back Plate 1/8" thick white acrylics
  • Float Type Borosilicate Glass
  • Media Compatibility Inert / non-reactive gases
  • Mounting Panel Mount
  • Mounting Fittings In Contact With Fluids 316 stainless steel, Aluminum, black anodized
  • Number of Tubes 1
  • Operating Pressure, Max 200 psi
  • Process Connection Size 1/8 in
  • Process Connection Type NPT Female
  • Process Temperature, Max 121 °C
  • Repeatability ± 0.25%
  • Scale Direct Read
  • Turndown Ratio 10:1
  • Valve Included true
  • Valve Type 6-Turn Valve

The FLD Carbon Dioxide-Series from Dwyer is a direct-read, panel-mount variable-area flow meter purpose-designed for CO₂ gas service. It combines precision metering with dependable materials of construction to meet the unique demands of carbon-dioxide flow measurement. With an accuracy of ±5% FS, repeatability of ±0.25% and a 10:1 turn-down ratio, this meter delivers both clarity and flexibility for process monitoring. 

The meter is rated for process pressures up to 200 psi and maximum temperatures up to 121 °C (250 °F), providing reliability in demanding gas applications. Wetted parts include options like 316 stainless-steel or anodized aluminum, a borosilicate glass tube, and a built-in 6-turn valve for fine control of flow. Designed for simple installation and intuitive use, the FLD Carbon Dioxide-Series is ideal for applications in gas supply panels, carbonation systems, process gas distribution or any scenario where accurate direct-read CO₂ flow indication is essential.

Rated 5 out of 5 by from I got Flow Control... Omega always has a great selection of products & technical data so you can find what you need...and this was no exception. The right flow range for the job.
Date published: 2018-12-12
Rated 5 out of 5 by from Quality Product Meets our needs as expected. Quality product and excellent delivery.
Date published: 2025-02-10
Rated 5 out of 5 by from Rotameter Flow Meter Dwyer Omega FLDN3505C Is a good product it flow meter Rotameter from Dwyer Omega
Date published: 2025-02-03
Rated 5 out of 5 by from Direct Read Flow Meter Great flow meter and you cant beat the price. I have bought several of these over the years and they always perform well.
Date published: 2024-10-21
Rated 5 out of 5 by from Wonderful product Wonderful product with exact presision, also has an excellent duration
Date published: 2024-05-31
Rated 5 out of 5 by from Hydrogen Flowmeter Thank you Omega for custom suppling me the Hydrogen Flow meter, which is not available on the market, in a very short time , even beating the estimated time, one again I can't thank you enough. Kevork
Date published: 2024-04-30
Rated 5 out of 5 by from Flow Meter Great product for measuring liquid or gas. Comes in handy.
Date published: 2024-04-15
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For the product FLDN3305G, the readings are in STANDARD LPM?

Asked by: PE1234
Thank you for your inquiry. The FLDN3305G has a range of up to 120mL/min. The units on the scale will be in mL/min.
Answered by: AS Engineer
Date published: 2020-04-29

Where do I reed the ball on the FLDA3214G-NV flow meter. The top or the center?

Asked by: Dgo1
Thank you for your inquiry about the rotameters. The Rule of Thumb is to read the flow rate at the highest and widest part of the float and in this case, a sphere will be the center.
Answered by: Application Engineer JC
Date published: 2023-08-15

Hi. Can I assume that all FLD series meters are volumetric, or is there an option to order them so that they are standardized?

Asked by: Bria
Thank you for your inquiry. They are calibrated at standard conditions, yet, no options for a calibration certificate.
Answered by: Applications Engineer JJC
Date published: 2024-10-07

Ordered an FLDA3420C-NV rotameter. Per spec sheet it has a max flow of 10 L/min. But now see the website says the units are SCFM and the readings on the meter go to 10. Which is the correct measurement unit?

Asked by: Remote Alaska
Thanks for your question? The part number, FLDA3420C-NV, rota-meter with no valve has been confirmed to have a max flow capacity of 10 LPM.
Answered by: application engineer je
Date published: 2019-07-15

Is the connection 1/8 pipe size? or 1/8'' Outer Diameter?

Asked by: Wfreer
Thank you for your inquiry. The process connection is 1/8 inch NPT
Answered by: Applications Engineer JJC
Date published: 2024-11-20

Is there an option available that can be sanitized in place using peroxyacetic acid?

Asked by: Richy
Thank you for your inquiry. If you would like to use the acid in question to clean, please consult a Chemical compatibility handbook to determine if the wetted materials are chemically compatible.
Answered by: Applications Engineer JJC
Date published: 2025-01-23

Certificate Traceable to NIST

Asked by: DoctorKong
Thank you for your inquiry for this rotameter. Unfortunately, there is no option for a NIST certificate for this series, you may consider the FL-3600, 3700, 3800, and 3900 series.
Answered by: Application Engineer JC
Date published: 2021-01-26

How do I read the flow meter / take the reading of FLDA3212ST model? Do I read the float at the top, middle or bottom? The model we got is FLDA3212ST

Asked by: Cathy2023
Thank you for your inquiry about the rotameters. The Rule of Thumb is the highest and widest part of the float.
Answered by: Application Engineer JC
Date published: 2023-03-11
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