The company manufacturing these pumps is called PIAB and has a homepage
www.piab.com in which you can find info. Their pumps come in different
types ranging from 5-20 mbar, which is OK to remove e. g. HPLC solvents in
decent time.
Sorry if I sound like a rep, but you asked for it...
/Ulf
******************************************************
Ulf Hellman, Ph. D.
Adj. Prof.
Ludwig Institute for Cancer Research :
Box 595
S-751 24 Uppsala
Sweden
Phone +46 18 160423
Fax +46 18 160420
E-mail ulf.hellman@licr.uu.se
Lab's home page: http://www.licr.uu.se