Hello TechNet I'm looking at buying onsite nitrogen generation capability, and for our two machines (wave and reflow oven) it looks like I need about 1300 SCFH capacity. My concern is that our reflow oven is both old, and 4 zone, so it may need to be replaced in the next few years. (we are lead-free exempt but may have to make the change at some point in the next few years - hence I'd want a bigger oven) Our oven currently uses about 1200 SCFH of nitrogen. It is, as mentioned, old - and I assume that oven design has improved so a new oven will use less nitrogen compared to an old oven of the same size. As well, I'm guessing that going from a 4 zone to an 8 zone oven does not mean I should just multiply the nitrogen consumption by 2. So, after a huge preamble, my question is this: does anyone have a half decently accurate estimate of what a modern 8 zone oven requires for nitrogen consumption? Thanks! regards, Graham Collins Process Engineer, L-3 Communications Electronic Systems Inc. Halifax (902) 873-2000 ext 6215 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------