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)?
I had a consult with Future and for some reason he didn’t recommend the Adixen 2021i…I even asked about it specifically…but if you guys are having good results with it, then the price can’t be beat… doesn’t look like it can anyways.
Just checkout ebay, grab a used one and if it doesn’t get down below 10 micron pickup a rebuild kit online they’re not bad to rebuild. Or buy one pretested for a little more on ebay