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- Posts: 15
- Joined: Wed May 03, 2017 9:06 am
I have a doubt concerning the rough pump of a new GC-MS system we are buying. Agilent offered the IDP-3 scroll dry pump (no oil) or the classical DS42i rotary vane. It is going to be paired with a 255 l/m turbo
There is a difference in price between the two, but the first one is less noisy, no oil and 150 euro of maintenance per year (there is a seal to replace). Here in France this new IDP is not really common, but I know in the US more people are using it. However probably the cost of the oil is less than 150 euro...
Technically speaking, i also found interesting the valve avoiding the loss of vacuum in case of power shut down (in my lab, countryside, this can happen unfortunately) which is not present in the DS42i.
What is your opinion about it? Do you think this can be an interesting technology?