So, I’m in the market for a rotary vane pump for my SPD set-up I’m putting together. Right now, I have most of a 2L set-up and I’m putting together a 5L, as well.
I was recommended the Welch 1400. It’s displacement is .9cfm
While shopping for it, I discovered a Welch 1402, with a displacement of 5.6 cfm, same Torr rating.
Is the 1402 too big or too much displacement for my application(2L or 5L)?