Best Vacuum achieved by piston pump
Best Vacuum achieved by piston pump
(OP)
Normally using a piston air compresor,run by a electric motor a vacuum about 3" or 4" Hg absolute value can be reached.
A refrigeration compresor reach the same , using air, not at a refrigeration cicle, of course it is not the best to use
What could be the minumun vacuum or absolute pressure can be reached with a piston pump, handle by hand.
Please see
http://www .eng-tips. com/viewth read.cfm?q id=302086& amp;page=1
I can not get , at any place , the pressure it can be reach by a piston pump handle by hand.
I know that it depend on the on the minumun vol when the piston is at it´s maximun position from the crank saft.
It can be seen at the Torriccelli HG atmospheric pressure meter or baromether, the space over the HG , is at 0.000" Hg absolute pressure.
Thanks in advance
A refrigeration compresor reach the same , using air, not at a refrigeration cicle, of course it is not the best to use
What could be the minumun vacuum or absolute pressure can be reached with a piston pump, handle by hand.
Please see
http://www
I can not get , at any place , the pressure it can be reach by a piston pump handle by hand.
I know that it depend on the on the minumun vol when the piston is at it´s maximun position from the crank saft.
It can be seen at the Torriccelli HG atmospheric pressure meter or baromether, the space over the HG , is at 0.000" Hg absolute pressure.
Thanks in advance





RE: Best Vacuum achieved by piston pump
RE: Best Vacuum achieved by piston pump
Guess there is no leak , the volume to be "vacuued" , is 1 liter, the pump displacement is 0.250 Liter , vacuum have to handle soft and slow.
RE: Best Vacuum achieved by piston pump
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Plymouth Tube
RE: Best Vacuum achieved by piston pump