12v Compressors

volume.

shadow
the max safe pressure will be the rated of the lesser one of the two compressors.

Hey! Wayne

Guess what?????

I was being a smart a r s e earlier this year and added a Blue Tongue IV to my ARB airlocker system - feeding both into an auxilliary tank.

Rationale: MORE AIR and quicker.

Result: Blew the A R S E end out of the ARB compressor tank.

Why: (1) No one way valve between Blue Tongue and ARB & no pressure cut off switch on the Blue Tongue. I had been mulling over in my mind the need for a one way valve but just didn't get around to it. (don't you just hate that).

Where did this happen: Dalhousie Springs no less at the begining of a West-East crossing of the Simpson.

Solution: I was extremely lucky that the last time the air tank on the ARB was touched by the ARB Techs, they hadn't tightened it properly and it let the 'O' ring seal push/squeeze out without damage.

Took about an hour or so to pull it off, re-seat the 'O' ring and re install the compressor. Very lucky indeedy.

So! I highly and strongly recommend that you look into getting pressure cut off switches if you don't already have them and isolating your compressors from excessive back pressures if appropriate.

Ken Robinson

G'day Wayne,
There is no reason why you couldn't use 2 compressors feeding into a common receiver tank. If you had, say, a 10 or 20 litre tank and had the 2 compressors both feeding it, no worries. It would fill around twice as quickly. As far as cut off switches are concerned, you could get away with having just one in my opinion.....the "+" wire to each compressor going via the one switch which could be located anywhere in the air pressure system (eg: on the tank would be preferrable). However, you could also have a separate pressure switch on each compressor unit and switch them on/off independantly depending on your particular needs at that time.
As an example, my set-up only has one compressor (Maxair) and only a 3 litre tank. This is okay for the locker, air horns etc. But if I had a bigger tank, one compressor would take a while to fill it. That's not gunna be a problem day to day, when I just want to top up the tank to be ready to fire-up the air horns. But if I was trying to pump up 4 or 6 tyres from 16psi to 35psi after a beach run etc, the 2nd compressor being switched on would be a great benefit......not that we should be in a hurry when we're out'n'about.
Just my thoughts...... Cya mate...