130 psi compressor for winterizing?
Hi - looking at at a Viair 400p compressor to carry al0ng for airing up tires, etc. It is capable of putting out 130 psi and 2.3cfm which is desirable for filling up the truck tires. Another use I a...
Forum Discussion
joshuajim wrote:
2.3 CFM equates to about 17 GPM. Even with all faucets open that might result in an excessive pressure build up.
OK, let's open up the fluid dynamics books which have been rotting since 1968!
Assumptions:
Water pressure = 40 PSI
Typical orafice size in faucet =1/8"
Resultant flow per formula = 2 GPM +/-
Air pressure = 120 PSI
Same orafice
Resultant flow per formula = 25 CFM
Ignoring line losses, it would appear that as long as one faucet remains open, 2.3 CFM will not overpressure the system.
