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Vacuum pump

Posted: Fri Jun 01, 2012 9:18 am
by alecsstefan
Hi, I want to build my first board and need advice about what pump I should use for vacuum bagging. Should I go for the fridge compressor route or will this little pump do the job:

http://www.ebay.co.uk/itm/20-Hg-12V-DC- ... 3cc6cb7644

Re: Vacuum pump

Posted: Sat Jun 02, 2012 1:46 am
by foam-n-fibre
Hard to know if that will work, I don't know if anyone has tried one. The question is can it move enough air if there are a few small leaks, and also, how long can it run for? I don't know the answers to that though....

One thing to keep in mind is that even thoug they quote a certain flow rate, I think it gets lower when there is more vacuum, plus with what looks like small hoses, there can be losses in the system affecting that too.

Peter

Re: Vacuum pump

Posted: Sat Jun 02, 2012 6:09 am
by BWD
pretty sure it's way too small.

Re: Vacuum pump

Posted: Tue Jun 05, 2012 9:09 pm
by alecsstefan
thanks for your replies, I went with the trusted refrigerator compressor route