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- Posts: 4
- Joined: Sat Feb 27, 2016 1:03 pm
I'm researching into connecting multiple gas tanks (2 He, 2 N2, 2 H2, 2 Air) to our GC systems for the purpose of easily switching tanks without interrupting a running analysis. As I am less familiar with gas management than some of you are, I was wondering if I could pick your brain the subject.
There are some automatic swtichover regulators on the market, such as http://www.restek.com/catalog/view/1056sold by Restek, which will switch from a nearly depleted tank to a backup when the pressure drops below 170 psi. This sounds great, however, it is also about two thousand dollars. We are a small company so if a manual switchover system is more cost effective we would like to pursue that option.
My question to the community is, How would one properly install a manual gas switchover system which will not affect a running analysis? Avoiding pressure surges or drops, etc.
Using He as an example, I imagine that each tank would require a Two Stage Regulator and shut off valve, both flow lines would need to connect somewhere followed by another Two Stage Regulator? Does this sound like it is on the right track?