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Sulaiman
International Hazard
Posts: 3724
Registered: 8-2-2015
Location: 3rd rock from the sun
Member Is Offline
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As your power supply is 12V 5A (60W) it may not work with a 70W pump.
CAUTION : Hobby Chemist, not Professional or even Amateur
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Opylation
Hazard to Others
Posts: 131
Registered: 30-8-2019
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My first pump was $10 from China so I think they gave me a fake pump or switched the tags. The word diaphragm is spelled wrong on the front. This time
I got a good ol’ American brand shipped from America so hopefully all is well on this one. I hate to be a broken record but I can’t get over the
amazing results nurdrage got with the exact same style pump and identical aspirator. We shall see
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Opylation
Hazard to Others
Posts: 131
Registered: 30-8-2019
Member Is Offline
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Alright, I got my new pump in the mail and I soldered things up and put it together. One thing I noticed is the pump is quite a bit quieter than my
last one. It is still noisey but it isn’t really loud. Like the difference between something hitting a materials resonance frequency and making the
whole material vibrate. I would say this new pump is at least 1/4 - 1/2 as noisey. I haven’t put it through a distillation run but I did a quick
suction test against my finger and it feels like it pulls more of a vacuum, but it only feels like it pulls maybe a little more than twice the vacuum
of the previous pump. I guess we will see what happens when I hook it up to my glassware. The pump is advertised as being compatible with a high
pressure switch but I didn’t notice anything different between the wires of the old pump and the new pump. I have a 6a 12v power supply powering the
pump since it’s rated at 70W however I noticed in the front the voltage says 12 (9-14.4)V and 6A so I don’t know if I’m losing some power by
keeping the voltage at 12 instead of maxing out the voltage. Idk, I guess we’ll see
[Edited on 15-6-2020 by Opylation]
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