United Nuclear's 2 stage vacuum pump

Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
Post Reply
David Rosignoli
Posts: 147
Joined: Thu Mar 04, 2004 2:57 pm
Real name: David Rosignoli

United Nuclear's 2 stage vacuum pump

Post by David Rosignoli » Tue May 09, 2006 8:42 pm

Does anyone have any experience with this pump from UN?
http://www.unitednuclear.com/vacpump.htm
It is a 2 stage rotary vane design. The webpage says an absolute vacuum of 40microns (I assume here that this takes into account any outgassing). This sounds like s decent pump for a demo fusor, although not for generating neutrons.
Any thoughts on this?
-Dave

Captain_Proton
Posts: 52
Joined: Sat Nov 10, 2001 1:21 am
Real name:

Re: United Nuclear's 2 stage vacuum pump

Post by Captain_Proton » Tue May 09, 2006 9:20 pm

Looks like it should do the job...

User avatar
Brian McDermott
Posts: 682
Joined: Wed May 28, 2003 10:28 pm
Real name:

Re: United Nuclear's 2 stage vacuum pump

Post by Brian McDermott » Tue May 09, 2006 9:38 pm

It looks like a relabeled Robinair pump.

DaveC
Posts: 2346
Joined: Sat Jun 30, 2001 5:13 am
Real name:

Re: United Nuclear's 2 stage vacuum pump

Post by DaveC » Thu May 11, 2006 7:14 am

A 40 micron ultimate pressure for a two stage roughing pump is rather high. This is about what an old single stage belt drive Welch pump might do. For comparison, a good two stage oilsealed roughing pump should get below 10 microns at blank-off... New Welch, and other two stage pumps are generally rated at 0.1 micron blankoff, when new.


Dave Cooper

Post Reply