Search found 4 matches

by bevan
Sat Dec 01, 2007 1:26 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: VacSeal question
Replies: 1
Views: 4283

Re: VacSeal question

<t>That is a good quality valve you have there. <br/> <br/> Have you thought about using a PFPE grease - low vapour pressure, works up to 200° C and has a vapor pressure of 5 x 10-13 @ 20° C. Not cheap - but I know a few people who swear by it.<br/> <br/> Try some Fomblin Y-Vac3 - you can get it at ...
by bevan
Sat Dec 01, 2007 1:15 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: A good source for filaments
Replies: 3
Views: 3744

Re: A good source for filaments

<t>Water vapour can be a real problem - how our test guys get rid of it is baking the chambers in a huge oven for a weekend connected to an RGA so they can tell when it has all gone. Not sure the wife would appreciate me popping a small chamber in the oven for the weekend!<br/> <br/> They also do a ...
by bevan
Thu Nov 29, 2007 11:42 pm
Forum: FAQs: Vacuum Technology
Topic: #4 FAQ: vacuum gauges - pressure measurements
Replies: 6
Views: 16709

Re: FAQ: vacuum gauges - pressure measurements

<r>It may be worth you looking at the wide range combination gauges at Leskers<br/> <br/> <URL url="http://www.lesker.com/newweb/Gauges/widerange_KJLC_910.cfm"><LINK_TEXT text="http://www.lesker.com/newweb/Gauges/wid ... LC_910.cfm">http://www.lesker.com/newweb/Gauges/widerange_KJLC_910.cfm</LINK_TE...
by bevan
Thu Nov 29, 2007 11:28 pm
Forum: Vacuum Technology (& FAQs)
Topic: Aluminum CF Flanges
Replies: 6
Views: 3563

Re: Aluminum CF Flanges

<t>I work for Leskers Europe and saw your request. Aluminum flanges are a bit of a pain - not many people want them. Their primary use is in low magnetic applications (synchrotron rings) where they compete against 316LN SS flanges - which are so espensive that it is almost worth making an aluminium ...