Gravity feed system using Floscan 201B fuel flow?

[pecanflyboy]

Can the Floscan 201B fuel flow sensor be used in a gravity feed system?  I'll be installing this sensor in a T-18, carbureted 0320-E2D, gravity feed system.

Thanks.

 

[dynonsupport]

The concern with sensor selection is being able to flow enough fuel at higher flow rates. FloScan reccomneds the model with the lower pressure drop (the 201A http://www.floscan.com/html/blue/aviation.php) for gravity feed systems operations. We only ever sold the 201B ourselves when we sold the FloScan units, leaving customers to source their own if that didn't meet their needs. These days, though, we sell the FT-60 EI red cube, which has a lower pressure drop than even the 201A.

 

[pecanflyboy]

The concern with sensor selection is being able to flow enough fuel at higher flow rates. FloScan reccomneds the model with the lower pressure drop (the 201A http://www.floscan.com/html/blue/aviation.php) for gravity feed systems operations. We only ever sold the 201B ourselves when we sold the FloScan units, .....

Based on the FloScan Performance Specifications, the 201B has only a 1.2psi drop versus the 201A having a 2.4psi drop at 30gph. There are no comparison numbers at lower gph. It would seem to me that the 201B would be a better option for gravity feed....?

 

[dynonsupport]

The data points you're really interested in aren't specified (down real low). They'll both go to zero, and you can interpolate to some degree, but at the low flow rates that you'll get on a gravity feed system, floscan is going to be the best resource to ask here. I'll note that the flow range spec on the 201A starts at .3gph, while on the 201B it starts at .6gph.