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Sanitary Turbine Flow Meters w/ Tri-Clamp Connection

Sanitary Turbine Flowmeters For Process Liquid Measurement


Item# FTB-405A

In stock

Lead Time (If not in stock): 7 weeks
Sanitary Turbine Flowmeters For Process Liquid Measurement FTB-405A FTB-405A
  • Compliant with the ASME Bioprocessing Equipment Standard BPE-2019
  • 11 Sizes Available, from ¼ to 3'
  • Flow Rates from 0.35 to 650 GPM
  • Suitable For Cleaning Out Of Place (COP)

FTB-405A Model Options

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Flow Range
Max Operating Pressure
Process Connection Size
Media type
Output Signal
Max Process Temperature
Wetted Materials
Process Connection Type

The Omega FTB400 sanitary design turbine flow meters are designed and manufactured to be compliant with the ASME Bioprocessing Equipment Standard BPE-2019 for measurement of process liquids where high sanitary standards are required. ASME-BPE-2019 is the leading Standard on how to design and build equipment used in the production of biopharmaceuticals. ASME-BPE-2019 is the leading Standard on how to design and build equipment used in the production of biopharmaceuticals. This series includes 11 sizes, ¼” to 3” with standard Tri-Clamp™ fittings, covering flow rates for 0.35 to 650 GPM.

Accuracy & Linearity: ±0.5% of reading or better
Repeatability: ±0.1% of reading or better
Temperature Range: -268 to 232°C (-450 to 450°F)
Signal Output: 10 mV rms or greater into a 10 kΩ load at minimum flowrate
Materials of Construction: 316 SS except as noted below:
    Rotor: 17-4 PH SS
    Retaining Rings: 15-7 MO PH SS
    Bearings: Hard carbon composite

Model No. Tri-Grip™
Linear Flow Range
mm (in)
Nominal K-Factor
kg (lb)
FTB-401A 1½" 1/4" 0.35 to 3.5 90 (3.56) 15,000 1.4 (3)
FTB-402A 1½" 3/8" 0.75 to 7.5 90 (3.56) 9,000 1.4 (3)
FTB-403A 1½" 1/2" 1.25 to 9.5 90 (3.56) 5,800 1.4 (3)
FTB-404A 1½" 5/8" 1.75 to 16 90 (3.56) 5,300 1.4 (3)
FTB-405A 1½" 3/4" 2.5 to 29 83 (3.25) 1,035 1.4 (3)
FTB-406A 1½" 1" 4 to 60 90 (3.56) 670 1.4 (3)
FTB-407A 1½" 1¼" 6 to 93 117 (4.59) 320 2.3 (5)
FTB-408A 1½" 1½" 8 to 130 117 (4.59) 250 2.7 (6)
FTB-409A 2" 2" 15 to 225 154 (6.06) 126 3.2 (7)
FTB-410A 3" 2½" 25 to 400 254 (10.0) 75 3.6 (8)
FTB-411A 4" 3" 40 to 650 254 (10.0) 45 4.5 (10)
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Wanting to find out if this is suitable for measuring the flow of liquid R134a refrigerant. Specifically the "Hard carbon composite" bearings. Temperature of the liquid is expected to be between 40F-80F.

Asked by: richp
Thank you for your inquiry! Unfortunately, we do not have chemical compatibility data for R134a with the wetted materials in this flow meter. The low viscosity relative to water will also be a concern as this will affect the k-factor.
Answered by: Application Engineer JM
Date published: 2022-10-28

will the sanitary turbine FTB-409A work with HFCS

Asked by: NA22
Thank you for your inquiry about the flow meter. The flow meter is calibrated for water and if HFCS will flow similar to water, ok, yet, the viscosity will change when the temperature changes and you may have to adjust or re-calibrate to account for that viscosity change.
Answered by: JC ENGR
Date published: 2021-01-23

Is the 3-A Sanitary Flow meter available with the RediPulse pickup coil as listed in the manual?

Asked by: JerryWayne
Thank you for your inquiry. The sanitary turbine flow meter will have the magnetic pickup that generates a sinusoidal wave output.
Answered by: Application Engineer JC
Date published: 2023-05-03

Where are the related products for this item, I.e. pick up cable and flow totalizer or flow computer ?

Asked by: J_A_S
It would be under the accessories for the flow meter and if you need additional information, please email and can respond more specifically for your application.
Answered by: Application Engineer JC
Date published: 2019-10-23
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