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Hi,
I’m still working on getting my new shop going (see the photos Gallery section). Anyway, I found a nice Speedaire compressor in the basement below my space and would like to link it with my existing compressor for maximum CFM. The Speedaire is 3 phase and the Campbell Hausfield is single phase. SInce they are on separate circuits they will both respond somewhat indepently I guess.
So, this is a bit over my head trying to figure this out. It seems like they will both respond to low air pressure independtly being on different circuits and they will be fine. Am I wrong?
Thanks, Tom Witt
Replies
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It is possible to "gang" compressors, but DO NOT do it unless you put check valves in both compressors. One will back-pressure the other and possibly blow the seals.
*Hi Len, Thanks for the reply. Would I put in one back pressure check valve between the compressors, assuming the air flow is going in one direction as it would be? To put it another way, Lets say I have a 3/4" line going to the shop and it tee's into the two compressors. Would I have a back pressure check valve between the two tee's? Is that sufficient, or would I need two check valves. One between the tee's and one after? My guess is two. Thanks! Tom
*They already have check valves!!!!!!!!!
*Thanks for the reply Rickk, so your position is that they have check valves so no special consideration is necessary in hooking them up to the same air line? Thanks, Tom
*I have hooked two compressors together with no problem. What are the respective HP of each just out of curiousity? Is the Speedaire a two stage? It might work better if you put one on each end of the main airline of the shop rather than on a T at the same point.
Well since the advice I got here was somewhat contradictory I emailed Campbell Hausfeld and received this reply about linking air compressors.
>>The two units can be link together to get more cfm. One thing to check is the max pressure of both units. Are they the same? If not, you need to change the safety valve on the lower pressure unit to match the safety valve on the higher pressure unit. For more information call 1-800-543-6400 option #5 for technical support.
Sincerely,
Catsupport
(Compressor-Air Tools Support)<<
Interesting. I think this makes sense and will let you know what happens once they are linked.
regards, Tom
One person who would probably know the final answer to this would be Andy Charron. If you're out there Andy perhaps you could weigh in on this?
Thanks,
Tom
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