I need a pitot tube work on this conditions:
d=500 mm
q=10000 Nm3/h
t=600 C
P=150 mbar

1-Are these parameters enough to specify a pitot tube.
2-manufacturer?

 

This info is enough for a rough estimate.

If I assume the process media to be air, then you will get approx. 70 to 80 mmH2O at 10 000Nm3/h, it's low but will be ok.

But the material will be a problem, it must be made of a special material, due to high process temperature.
Please contact your local Emerson/Rosemount office they will help you find a special Annubar APT for this application.

 

You may want to check Rosemount/Emerson ( http://www.rosemount.com/products/flow/m485ann.html ) and Veris ( http://www.veris-inc.com/ ) in your area.

Fluid properties will be required. Usually a range of flows to be measured (min, normal, max) helps get sizing right. Variations in pressure(s) and/or tempertures are also helpful (if there are any). Pipe size, schedule, and material are needed. Upsteam and downstream straight run distances are needed ( http://www.omega.com/literature/transactions/volume4/T9904-07-DIFF.html ).

Based on your temperature, you should review the material(s) of the vendor suggestions yourself very carefully. Your plant's metallurgist (if available) should also be consulted.

JC

 

Thank you for your help.

 

For great technical assistance directly from a pitot tube manufacturer. Torbar flowmeters could provide custom built units at good prices.

I believe that their web site is http://www.torbarflowmeters.co.uk

 

Could also check http://www.veris-inc.com who have much better technology as compaired to other traditional designs.

-Rohit

 

Dear Sir

How did u find the DP is ard 70-80mmWC? Can u suggest sizing calculation?