Orifice calculations

shkoko2000

Member
Join Date
May 2011
Location
cairo
Posts
296
Dear all,
hope you are well,
A friend ask my for he has an orifice is worked at hydrogen service with high flow after that he needs to use nitrogen instead to hydrogen with low flow rate how to verify this orifice handling this low flow rate? what are required parameters????
 
I suggest you get a copy of ASME PTC 19.5, which covers everything you want to know about orifice flow meters.

Regardless of the gas, the math is the same. You may run into a problem with low differential pressure at a low flow condition. This may be handled by using two different transmitters with different scaling.

This may get you started: https://www.engineeringtoolbox.com/orifice-nozzle-venturi-d_590.html
 
I mean that at low flow, different hole may be used from orfice calculations. And the other thing that i can use one diff. Transmitter with range cover low and high delta p
 

Similar Topics

What is the best program or excel sheet for orfice calculations to download it
Replies
5
Views
2,166
Does anyone know the formula for calculating the maximun flow through an orifice? The fluid in this case is water. I have the dia and K factor...
Replies
11
Views
5,713
Good day, Orifice details d=92.36mm, max flow rate =120m3/hr, max diff =0-100mm wg. And my dp cell is calibrated to 0-25kpa. Is this correct...
Replies
3
Views
1,890
Hello, what is the equation to measure gas flow across an orifice plate? i have a customer who has an orifice plate, DP transmitter, pressure...
Replies
9
Views
4,678
Anyone ever use A dynamic orifice valve before? Its basically an orifice plate that is an iris that can change size...
Replies
3
Views
2,510
Back
Top Bottom