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Dr_Lxve
01-21-03 09:10
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<a href="https://www.the-hive.ws/forum/showflat.pl?Number=400208&page=46&view=&sort=5&Search=&vc=&new=&start=0&xrated=y&&URLForums=" title="Click here to show this downrated post">HVAC or Vacuum Aspirator Station?</a>
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<i title="This post has been downrated by the moderators">(Rated as: redundant)</i>
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<font color="#FF0033">Rhodium</font><br>
<i>(<span title="The user's title at the time of posting">Chief Bee</span>)</i><br>
<span title="Posting date">01-21-03 10:29</span><br>
<span title="Link to this post by using the markup [400223]">No 400223</span><br>
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<b title="The subject of this post">Either or?</b>
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Neither is the universal solution. See <span title="Jump to this post"><a href="../DUMMY">Post 398298</a> <i>(Rhodium: "The combination is perfect", Newbee Forum)</i></span>
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spectralmagic<br>
<i>(<span title="The user's title at the time of posting">A Different Title</span>)</i><br>
<span title="Posting date">01-21-03 10:46</span><br>
<span title="Link to this post by using the markup [400227]">No 400227</span><br>
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<b title="The subject of this post">Water-aspirator works for me...</b>
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Being a cheap bastard, I've only ever used a water aspirator (water is fairly plentiful in this city, and free in this building)... all-glass model with built-in backflow preventer (which works well enough that I've never sucked water into the erlenmeyer flask setup to catch such events). Just last night it was pulling a vacuum strong enough to distill our favourite 2-alkene at 118C (very steady vacuum as well - I guess I have a good water supply)... what is that, about 9-10 torr/mmHg? And yes, the water here is icy cold out of the faucet...
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<span title="The signature"><hr>Add your thread to the rich tapestry of conspiracy...<br>... and wave hello at the satellites!<br></span>
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Organikum<br>
<i>(<span title="The user's title at the time of posting">Hive Addict</span>)</i><br>
<span title="Posting date">01-21-03 12:11</span><br>
<span title="Link to this post by using the markup [400238]">No 400238</span><br>
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<b title="The subject of this post">A aspirator for most needs</b>
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but of course Rhodium is right, the combination of an aspirator connected to the outlet of a HVAV pump is the killer application. <br><br>A very astonishing and rarely known fact is that a well buildt aspirator can pull <b>more</b> vacuum as widely assumed. The steampressure of water does <b>not</b> limit the vacuum that can be reached. The limitation is in the maximal velocity which is mostly determined by friction. <br>Old differences like UF vs. Eleusis where this started I believe and many threads here may be rated new taking this in regard.<br><br>Yes all books tell so, at least all chemical ones. Have a look in physics and engineering. They know more.<br><br>ORG
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<span title="The signature"><hr><center><font color="blue"><b><span title="This post does not exist">Post 399486 (not existing)</span></b></font color="blue"></center></span>
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PolytheneSam<br>
<i>(<span title="The user's title at the time of posting">Master Searcher</span>)</i><br>
<span title="Posting date">01-21-03 15:45</span><br>
<span title="Link to this post by using the markup [400285]">No 400285</span><br>
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<b title="The subject of this post">HVAC usually stands for heating, ventilation...</b>
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HVAC usually stands for heating, ventilation and air conditioning. The stores often sell oil type vacuum pumps, too.
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<span title="The signature"><hr> <a href="http://www.geocities.com/dritte123/PSPF.html" target="_blank" title="Jump to this external site">http://www.geocities.com/dritte123/PSPF.<wbr>html</a><br>The hardest thing to explain is the obvious</span>
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