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That measure is based on a 1 square inch opening, I believe, so you can recalculate, if you know your tubing diameter.
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Ben, pressure units are force/area, so area size is irrelevant. This was really a powerfull blower; but noisy at 9K rpm.
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Lol, but seriously:
Thats not bad!
What fan did the motor come off of?
I bet it didnt come off of a 60mm delta screamer, and that draws a whole ~4.5watts!
I mean a cheap VIA Aqua 1300 consumes 20 watts.
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This was a 60 x 10 mm of intemediate power. It was rated at about 4 watts, but I don't know how precise that rating was.
Looking at Eheim pumps, they have a 4 watt model, the 1005 that makes 270 l/h and 75 cm head. So sure 4 watt can do more than 30 cm, but I don't know what makes that limit. Maybe head and torque are related in some way, and the low torque of the motor makes impossible to go higher.
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What did it sound like nico?, was it audible at all?...
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It made some little noise, but it was from vibration of the poorly balanced impeller. I did'nt take too much care with that as it was a quick test.It was a bit tricky to center it with precision in the lathe, cause the soft plastic of the fan deforms under pressure.
the bearing was silent at UW speeds, so a carefull balance can make it really noiseless.