Talk Composites - The Forum for Advanced Composites

Maximum attainable vacuum at elevation

http://www.talkcomposites.com/Topic32637.aspx

By Kevin254 - 4/18/2019 10:13:00 AM

Greetings,

I am operating at an area with an elevation of roughly 1800m above sea level. Based on some reading I've done, I have seen that the maximum attainable vacuum at this altitude is roughly between 24-25 in. Hg. I am getting a steady 24.9 in. Hg on my vacuum gauge and a drop test 30 minutes later shows no losses.
Should I then be satisfied that I have achieved maximum vacuum or is something not right somewhere?
By JasonFL - 4/18/2019 8:52:43 PM

 
Kevin254 - 4/18/2019 10:13:00 AM
Greetings,

I am operating at an area with an elevation of roughly 1800m above sea level. Based on some reading I've done, I have seen that the maximum attainable vacuum at this altitude is roughly between 24-25 in. Hg. I am getting a steady 24.9 in. Hg on my vacuum gauge and a drop test 30 minutes later shows no losses.
Should I then be satisfied that I have achieved maximum vacuum or is something not right somewhere?


Yes.  Sounds like you have a solid pump that can pull the entire atmosphere for your altitude.