http://kb.linux-vs.org/wiki?action=history&feed=atom&title=BourassaNowell494BourassaNowell494 - Revision history2026-04-05T21:11:13ZRevision history for this page on the wikiMediaWiki 1.26.2http://kb.linux-vs.org/wiki?title=BourassaNowell494&diff=19839&oldid=prevBourassaNowell494: New page: There are essentially three categories of freeze-dryers: the manifold [http://www.china-drying-equipment.com drying equipment], the rotary freeze-dryer and the tray style freeze-dryer. Two...2012-04-21T03:22:04Z<p>New page: There are essentially three categories of freeze-dryers: the manifold [http://www.china-drying-equipment.com drying equipment], the rotary freeze-dryer and the tray style freeze-dryer. Two...</p>
<p><b>New page</b></p><div>There are essentially three categories of freeze-dryers: the manifold [http://www.china-drying-equipment.com drying equipment], the rotary freeze-dryer and the tray style freeze-dryer. Two components are common to all types of freeze-dryers: a vacuum pump to reduce the ambient gas pressure in a vessel containing the substance to be dried and a condenser to remove the moisture by condensation on a surface cooled to -40 to -80 C (-40 to -112 F). The manifold, rotary and tray type freeze-dryers differ in the method by which the dried substance is interfaced with a condenser. In manifold freeze-dryers a short usually circular tube is used to connect multiple containers with the dried product to a condenser. The rotary and tray freeze-dryers have a single large reservoir for the dried substance.</div>BourassaNowell494