Can please somebody direct me to discussions about VENTURI-HOW IT WORKS?
I need to buy a vacuum pump to evacuate my AC for a full rebuild..
I saw this and wondered if anyone had any opinions about it. It's cheap enough I might just gamble anyway...
I have a good air compressor already.
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Someone can probably explain a venturi better than me but this is it. The Bernoulli principal is the foundation of the function of a venturi.
In a venturi, the fluid is flowing through a pipe which then decreases in diameter gradually then increases back quickly. At a point in the flow just after the fluid is compressed through a smaller diameter orifice, a small pipe can be tapped into the device. At this point in the pipe, there is a vacuum created. http://en.wikipedia.org/wiki/Bernoulli%27s_principle
Jamesrl, a contributor on this forum made mine. It works great. No moving parts. Reliable. Safe to handle dangerous vapors.
Graham Laming has a great commentary on this subject.
Hope that helps.
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