Tube Bundles (Straightening Vanes) have been in use for a long
time.
Users of Orifice, Turbine, Ultrasonic and Vortex meters have trusted
tube bundles to reduce measurement uncertainty caused by upstream
flow disturbances negatively affecting meter performance. Although
tube bundles effectively eliminate swirl, they do nothing to restore
a fully developed velocity profile which is also critically important
in reducing measurement uncertainty. Based on Industry research,
Tube bundles (Straightening Vanes) have quickly become obsolete
with the introduction of high performance flow conditioners such
as the CPA 50E which effectively eliminates swirl and provides a
fully developed velocity profile and significantly shortening meter
run lengths.
AGA 3 (2000) for Orifice Metering clearly recognizes the deficiency
of tube bundle performance and has accommodated the use of the CPA
50E Flow Conditioner as a Flow Conditioning alternative allowing
a much more compact meter run and reduced overall measurement uncertainty.
The CPA 50E is suitable to a Beta Ratio of 0.75 and upstream run
length as short as 13 pipe diameters.
When used as recommended the CPA 50E complies with all of the requirements
of AGA 3 (2000).
The CPA 50E is the best flow conditioner for your needs. Please
contact us to find out why.
