User's Manual

Parts
312752C 13
Orifice Size Selection
Use the following equation to find a suggested orifice
size for your application.
The calculated “D” is the suggested orifice size in milli-
meters. Round to the nearest available orifice size listed
on page 12.
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.
D = Orifice Diameter (mm)
F = Flow through orifice (pounds / second)
P = Dispensing Pressure for Chemical (psi)
Sg = Specific Gravity of Chemical
D F 0.324⁄()P Sg 62.4××()×=