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Velocity Calculator

The Fox Velocity Calculator is a helpful tool.  This Calculator can help you determine whether a Fox Meter is right for your application.


Directions for use:

  1. Choose the pipe shape
  2. Choose standard or metric flow units
  3. Click “Submit”
  4. Enter pipe/duct size
  5. Enter maximum flow rate
  6. Click “Submit query”
  7. Compare Calculator results with the table below.  If your velocity results exceed the numbers in the table or your gas type is not listed, contact a Fox Application Specialist at (831) 384-4300 or sales@foxthermalinstruments.com.

Velocity Calculator
Input
Pipe Shape
Units
 
Restart Velocity Calculator
 
Go to Fox Flowmeter Configurator
View Fox Products


FT1 Maximum Flow Velocity
Gas Type
(SFPM)
(NMPS)
Air
15,000
71
Argon
15,000
71
Butane
15,000
71
Carbon Dioxide
15,000
71
Helium
15,000
71
Hydrogen
15,000
71
Methane
15,000
71
Natural Gas
15,000
71
Nitrogen
15,000
71
Oxygen
15,000
71
Propane
15,000
71
3-Gas Mix
15,000
71
FT2A & FT3 Maximum Flow Velocity
Gas Type
(SFPM)
(NMPS)
Air
60,000
283
Ammonia
54,000
255
Argon
45,000
212
Butane
20,000
94
Carbon Dioxide
60,000
283
Ethane
40,000
189
Helium
30,000
141
Hydrogen
15,000
71
Methane
45,000
212
Natural Gas
45,000
212
Nitrogen
60,000
283
Oxygen
50,000
236
Propane
20,000
94
Other Pure or Mix Gas
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Velocity Calculator

Fox Thermal Instruments, Inc. 399 Reservation Road | Marina, CA 93933 | Phone: (831) 384-4300 | Fax: (831) 384-4312 | Copyright 2005-2014

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