Diffusion Pump

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Rob Osterman
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Joined: Thu Mar 24, 2011 4:31 am
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Diffusion Pump

Post by Rob Osterman » Fri Oct 25, 2019 8:20 pm


I am looking for a diffusion pump that has either a KF40 fitting or CF 2.75" fitting that I can hook up to my vacuum chamber.

Thank you!

Posts: 628
Joined: Mon Nov 28, 2016 7:48 am
Real name: Ian Krase

Re: Diffusion Pump

Post by ian_krase » Sun Oct 27, 2019 7:47 am

These are not terribly common, although KF flanged diffpumps in the smallest sizes definitely exist. These diffpumps are not particularly common, and tend to be expensive when you can find them.

Most diffpumps you will find have a somewhat nonstandard "pipe flange" style flange on them, or maybe a somewhat standardized flange that isn't what most of us would consider a vacuum flange.

You should probably expect to have to make an adapter plate to use readily available diffpumps... to the degree that any diffpumps are still readily available.

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