I think that would probably work, provided you are not of course relying on them to regulate the pressure at all. I have one of that same solenoid valve, I use it to switch on and off 130psig compressed air, it works great, very positive shutoff with no detectable leakage even after sitting for a week. So in a relatively dry gas stream I think it is good.
Doesn't really apply here, but it does not work well as a condensate drain, it jams up quickly, but then I think any solenoid will, I've tried many and the rusty condensate water makes them not close all the way after even a couple operations.
Note of course, the solenoid like pretty much any solenoid valve, gets $%@#*( hot after it's been energized for say 5 minutes or more.