Air Flow And Atomizing Pressure - Graco Optimiser 2K 02748 Instructions Manual

Air Flow and Atomizing Pressure

NOTE: All tests completed with the fan air fully open.
Air Flow
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
15 25 35 45
GUN AIR INLET PRESSURE (psi)
Atomizing Pressure Versus
Activator Inlet Pressure
Air flowing through the gun creates back pressure,
which the activator must overcome before beginning to
flow. The chart below shows the minimum activator
pressure required to overcome the atomizing air
pressure. Higher pressures may be necessary to
maintain the mix ratio.
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
15 25 35 45
GUN AIR INLET PRESSURE (psi)
55 65 75 85 95
55 65 75 85 95
Atomizing Air Pressure
(inlet pressure vs. atomizing pressure)
20
18
16
14
12
10
8
6
4
2
0
15 25 35 45 55
GUN AIR INLET PRESSURE (psi)
Gun Inlet Pressure Nominal Atomizing Pressure
15 psi (1.05 bar)
25 psi (1.75 bar)
35 psi (2.45 bar)
45 psi (3.15 bar)
55 psi (3.85 bar)
65 psi (4.55 bar)*
75 psi (5.25 bar)
85 psi (5.95 bar)
95 psi (6.97 bar)
* For compliant operation, operate at 65 psi (4.55 bar) or less
65 75 85 95
1.5 psi (0.11 bar)
3.0 psi (0.22 bar)
4.5 psi (0.33 bar)
6.0 psi (0.42 bar)
8.5 psi (0.62 bar)
10.0 psi (0.70 bar)
13.0 psi (0.95 bar)
15.5 psi (1.14 bar)
18.0 psi (1.32 bar)