Powder Volume Setting For Optiflow Injector; Powder Output (Reference Values) - Gema OptiFlow IG07-P Operating Instructions Manual

Powder volume setting for OptiFlow Injector

12  Product description
Rev. 00 02/19
In order to prevent this from happening, supplementary air is added until
the volume of the air in the powder hose is sufficient available once more.
The conveying quality depends on the quality of the powder, the powder
hose length, the hose diameter and the number of hose curvatures. Place
great importance on the insert sleeve condition, because clogging or
sintering causes the powder output to reduce drastically.
In order to set the ideal powder volume on the OptiStar gun control unit, it
is recommended to select the firmness of the powder cloud or the total air
first. As guide values for different powder hoses, the following can be
assumed:
–
Powder hose 74 type, Ø 10 mm, 3-5 m³/h
–
Powder hose 66 type, Ø 11 mm, 4-5 m³/h
According to the prevailing conditions (powder, powder hose layout, the
parts to be coated) a low to lowest total air can also be set with the
standard hose 74 type, Ø 10 mm.
If a very large powder output is required, it is recommended to select a
larger powder hose internal diameter (Ø 12 mm).
It should to be noted, that if irregular or pumping conveying
occurs, as a rule, the total air is set too low!

Powder output (reference values)

General conditions for the OptiFlow Injector
Powder type
Powder hose Ø (mm)
Type of powder hose
Input pressure OptiStar (bar)
Correction value C0
Epoxy/polyester
11
POE with guide strips
5.5
Powder output zeroing
adjustment
OptiFlow IG07-P