Chris, I don't think that noryl will hold up. My company had a problem with esterized hydrocarbons (in the form of machine oil) attack a mechanical shaft made with noryl in one of our aircraft instruments. After a few months the oil weakened the noryl to the point that it fractured. We had to repair half our altimeters at our expense. We found that cleaning the machine oil off of the metal part of the shaft before mating it with the noryl part eliminated the problem. Oops.
There are plastics that will hold up in fuel. We are using glass-filled PPS (don't remember what is stands for offhand), and ULTEM in one of our aicraft fuel probe designs (JP-8 resistant). You may be able to find other impellers made from these materials. Earl Kinsley [EMAIL PROTECTED] ---------------------------------- "Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people. To destroy this invisible government, to befoul the unholy alliance between corrupt business and corrupt politics is the first task of the statesmen of today." - President Theodore Roosevelt - 1906 ----- Original Message ----- From: "Chris Tan" <[EMAIL PROTECTED]> To: <Biofuel@sustainablelists.org> Sent: Sunday, October 16, 2005 3:27 PM Subject: Re: [Biofuel] noryl impellers > Keith and Everyone: > > Have any of you tried a clear water pump with noryl plastic impellers? > Will esters dissolve noryl plastics? > > Thanks. > > Best regards, > > Chris > > > > _______________________________________________ > Biofuel mailing list > Biofuel@sustainablelists.org > http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Search the combined Biofuel and Biofuels-biz list archives (50,000 > messages): > http://www.mail-archive.com/biofuel@sustainablelists.org/ > > _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
