The Feser Compancy X-Changer 120.3 Radiator Pressure Drop Flow Testing
Welcome to my pressure drop testing of the "The Feser Company"
I would like to give special thanks to Jeremy from Danger Den for
loaning me this radiator for a quick flow rate pressure drop test.
I know it's a hot topic on the forums and glad I could test it
for pressure drop.
With this review I will focus on the pressure drop and flow
characteristics for this radiator.
The radiator is a very thick and open finned designed to be optimized
for low speed fans. It has similar thickness and fin structure to
that of the popular Thermochill PA 120.3. Here are some
characteristics noted by the manufacturer.
- Water Channels and Fins made out of ECu Copper Material
- Brass Water Chambers
- Black Finish (5µm)
- G1/4" Threads
- Bleed Valve Screw
- 411 x 123 x 62 mm
(L x W x H)
- Approximately 11-12 folds per inch
I should note there will be some slight exterior type changes still
going on here, so the final production model will be a little
different. I heard they may be working on the threads, different
paint, and some shroud ideas. So it sounds like very minor
exterior changes only.
Hydraulics and Pressure Drop Testing
most scientific way to determine a blocks hydraulic resistance is to test
pressure drop. Pressure drop is a measurement of pressure loss across a radiator
that varies with flow rate. This is basically a measurement of energy loss, and
directly influences how much flow rate you will have.
Digital Manometer 477 Mark V - Accuracy .5% of Full Scale. Range 0-20.00 PSI range, Resolution .01 PSI
Instruments 7520 Series 0-5GPM, 250mm scale - Accuracy 2% of Full Scale.
Range 0-5GPM, Resolution .1 GPM (can be interpolated to .02GPM)
- Water Source - Household water pressure - 50PSI at >5GPM - Because flow
rate readings are instantaneous, household tap water and water pressure are a
good and powerful source for pressure drop testing.
And my results are as follows, the pressure drop results are very very good!
Update 3-22-08, I've acquired a new Thermochill PA120.3
on loan from the great folks at Danger Den to complete this comparison.
Special thanks goes to Dennis and Debbie at Danger Den for making
this happen. I tested the PA with the same setup, and because the
PA comes in G3/8" barb threads I first tested with some EK G3/8" barbs
, and then some G3/8" to G1/4 reduces from Watercoolingshop.com
to use regular barbs. I then used the Danger Den Fatboy G1/4 barbs
on those adapters for my second test. In the end, both radiators had very similiar and very low pressure drop.
The Feser X-Changer 120.3 has exceptionally low pressure drop, very impressive!
very impressed with the X-Changer's low pressure drop and I'm very
curious how well it does thermally with the copper channel
construction. Copper tubes are generally not used in radiator
design because copper is very soft, brass provides greater
structural strength. But Feser found a way to utilize copper
(better thermal conductivity than brass) tubes and I can only expect
that will help with thermal results. I have no doubt it will
perform very well!
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