Vacuum pump and gauge testing

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Cade Neely
Posts: 5
Joined: Tue Dec 31, 2019 2:06 am
Real name: Cade Neely
Location: Southern Indiana

Vacuum pump and gauge testing

Post by Cade Neely » Sun May 03, 2020 8:29 pm

To start my fusor project I bought a refurbished 14.5 cfm Pfeiffer rotary vane pump, Edwards Pirani gauge, Edwards gauge and turbo controller, and assorted paraphernalia. The Pirani gauge is attached to a four way NW25 tee that is connected to the pump. The two remaining ports are blanked off but will be connected to the turbo pump later. When I first pumped out the tee the gauge registered a pressure of 5X10e-4 millibar which is lower than the maximum pressure of the pump (the pump was tested by the seller at 3 microns). I let the pressure and gauge stabilize for 10 minutes before adjusting the gauge to read 3 microns. I am in the process of ordering a chamber and have a Edwards nEXT240 turbo pump coming in a few days, more on that later.
Attachments
IMG_2873.jpg
The setup in my garage laboratory
IMG_2873.jpg (93.3 KiB) Viewed 303 times
Setup2.jpg
a sideview
vacuum.jpg
The controller displaying the gauge pressure in millibar after adjustment

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Richard Hull
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Joined: Fri Jun 15, 2001 1:44 pm
Real name: Richard Hull

Re: Vacuum pump and gauge testing

Post by Richard Hull » Sun May 03, 2020 9:48 pm

Nice high dollar stuff. All the best in your fusor efforts.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

Cade Neely
Posts: 5
Joined: Tue Dec 31, 2019 2:06 am
Real name: Cade Neely
Location: Southern Indiana

Re: Vacuum pump and gauge testing

Post by Cade Neely » Mon May 04, 2020 3:24 pm

Thank you. I would appreciate any tips on fusor construction.

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Richard Hull
Moderator
Posts: 12103
Joined: Fri Jun 15, 2001 1:44 pm
Real name: Richard Hull

Re: Vacuum pump and gauge testing

Post by Richard Hull » Tue May 05, 2020 4:06 am

Tips? There hundreds of great tips in the construction forum and most reside in the FAQs section of that forum.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

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