Forum Discussion
myredracer
Dec 07, 2016Explorer II
My 120 volt Porter-Cable pancake compressor is rated at 2.8 cfm. I've successfully used it for winterizing in the past (no anti-freeze). A Viair at 2.3 cfm isn't much less and might just be fine. RVs are supposed to be tested to 100 psi, but I don't think I'd want to have the piping system pressurized to 150 psi very long, if at all. Get an ordinary regulator with gauge and add quick connect fittings. Note that the Viair hoses have a female fitting on the end, not the usual male fitting.
If you haven't got the Viair yet, get an automatic model otherwise it will run continuous. These compressors have a duty cycle which you should be aware of. Not sure what the automatic models cutoff pressure is. Maybe you could order one with a 105 psi cutoff switch or change it out yourself. Don't bother with the RV version, I think it has additional accessories that you don't really need. Their tire inflator is cheap junk.
I have a Viair 300P that has the same cfm/psi as the 400P, but I modified it and installed a Viair pressure switch that cuts out at 105 psi. When filling tires the psi drops quite a bit when air is flowing.
I'd be interested in knowing if a Viair works for winterizing. Unless you expect to be winterizing where there is no 120 volt power, I'd just get an ordinary portable 120 volt compressor ($100 or less) as Vair compressors aren't cheap.
If you haven't got the Viair yet, get an automatic model otherwise it will run continuous. These compressors have a duty cycle which you should be aware of. Not sure what the automatic models cutoff pressure is. Maybe you could order one with a 105 psi cutoff switch or change it out yourself. Don't bother with the RV version, I think it has additional accessories that you don't really need. Their tire inflator is cheap junk.
I have a Viair 300P that has the same cfm/psi as the 400P, but I modified it and installed a Viair pressure switch that cuts out at 105 psi. When filling tires the psi drops quite a bit when air is flowing.
I'd be interested in knowing if a Viair works for winterizing. Unless you expect to be winterizing where there is no 120 volt power, I'd just get an ordinary portable 120 volt compressor ($100 or less) as Vair compressors aren't cheap.
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