Pressure loss?
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Hi guys.
I’ve wondered if there is any way to tell if air pressure is lost through airlines and if so how much? I don’t run a gun gauge so adjust air pressure at the regulator on the wall.
Anybody know about this?
Yes there is definitely a pressure loss so you really should be using a gun gauge. I see about 4 PSI loss through 3 metres of 10mm hose with high flow fittings.
Not sure why it said anonymous when I posted the question.
4psi through 3m of airline, that is surprising.
I’m using around 15-20m of airline so I can get right around a car in the booth.
I set the regulator at 2bar but the gun feels totally strangled for air.
I will get another gun gauge (used to run one) and set the regulator accordingly.
Gun gauge fitted.
4 bar at the wall regular = 2 bar at the gun with air and gauge fully open.
15-20m hose in the booth? That’s way long. I have 9m hose and have no problem reaching any point on the vehicle, even using only one wall outlet.
Pressure loss over this length is 3-4psi only. Does depend on the gun though – some guns have more internal back pressure than others.
Best way is to check all your guns with a gauge at the gun and make up a chart so you know what pressure to set at the wall. My chart is on the wall, right next to the regulator.
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