https://pm.haifa.ac.il/index.php?title=User:BourassaNowell494&action=history Revision history for this page on the wiki en MediaWiki 1.15.1 Thu, 03 Sep 2026 03:31:00 GMT https://pm.haifa.ac.il/index.php?title=User:BourassaNowell494&diff=20672&oldid=prev <p>Created page with &#39;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-…&#39;</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> Sat, 21 Apr 2012 03:24:31 GMT BourassaNowell494 https://pm.haifa.ac.il/index.php?title=User_talk:BourassaNowell494