Geminidawn Posted July 31, 2007 Share Posted July 31, 2007 High hp air Vacuum Pumps are extortionate, Can I not just tap the air inlet on a 2.5 electric compressor to take an air line, air lock, vacuum guage and remove the bleeder tap to stop the automatic cut off. The motor and diaphragm set up seem similar or is the Vacuum Pump substantially different to command such a high price? Quote Link to comment Share on other sites More sharing options...
sgnas Posted August 1, 2007 Share Posted August 1, 2007 I think it depends on how far under ambient pressure you want to go. Sucking ALL the air out requires special kit. Quote Link to comment Share on other sites More sharing options...
Escape Posted August 1, 2007 Share Posted August 1, 2007 Sucking all air out is virtually impossible. With a compressor set-up you'll be able to create some underpressure, but not a lot (depending on the type of compressor, turbine types are better suited then pistons). All the airseals are actually the wrong way round once you start working with under pressure, so you could end up with a lot of losses. Compressor efficiency is also very important, hence the high price. For high vacuum (>75%) you need to look at different technologies. Quote Link to comment Share on other sites More sharing options...
Br00n1e Posted August 1, 2007 Share Posted August 1, 2007 I bought one from here as exchange rate was good, located in the the cab but runs as soon as you brake so going to have to fine someway of quieting it down a bit. http://www.evparts.com/shopping/search.php...&search.y=0 missed a complete kit on ebay there are ones available here that are used for electric vehicles but as usual more expensive Quote Link to comment Share on other sites More sharing options...
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