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Author Topic: Useful Vacuum Technology  (Read 6051 times)

John Donovan

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Useful Vacuum Technology
« on: March 31, 2014, 10:10:44 PM »
We have these roughing "bypass" valves on all our roughing pumps:

http://probesoftware.com/smf/index.php?topic=120.msg487#msg487

Prevents thin window blowouts when pumping down from atmosphere.
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John J. Donovan, Pres. 
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John Donovan

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Re: Useful Vacuum Technology
« Reply #1 on: July 20, 2014, 12:51:59 PM »
My engineer reports lesker.com has the following:

KF25 size, pn 31128-KASO    for $135 (only 1 left in stock)

KF40 size, pn 31132-KASO  for $148 (4 in stock), and you'd likely need 2 KF40/25 adapters to fit these in your system
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Probeman

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Re: Useful Vacuum Technology
« Reply #2 on: December 08, 2014, 02:55:27 PM »
Here are some pictures of these slow opening rough values on our SX100 (and also the Sx50):

http://probesoftware.com/smf/index.php?topic=332.msg2077#msg2077
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