Graco 30110-500-2 Operation And Parts page 13

Orifice Size Selection
This section is provided to approximate an effective
orifice size for a given application. There is no guar-
antee that this formula will provide the correct ori-
fice size.
Use the following equation to find a suggested orifice
size for your application.
 
D F 0.324
=
D = Orifice Diameter (mm)
F = Flow through orifice (pounds / second)
P = Dispensing Pressure for Chemical (psi)
Sg = Specific Gravity of Chemical
The calculated "D" is the suggested orifice size in milli-
meters. Round to the nearest available orifice size listed
on page 12.
312752D
    
P Sg 62.4

Parts
13