23
APPENDIX
ProSpray 20
12
APPENDIX
12.1
SELECTION OF TIP
To achieve faultless and rational working, the selection of the
tip is of the greatest importance.
In many cases the correct tip can only be determined by means
of a spraying test.
SOME RULES FOR THIS:
The spray jet must be even.
If streaks appear in the spray jet the spraying pressure is either
too low or the viscosity of the coating material to high.
REMEDY:
Increase pressure or dilute coating material. Each
pump conveys a certain quantity in proportion to the size of
the tip:
The following principle is valid:
large tip = low pressure
small tip = high pressure
There is a large range of tips with various spraying angles.
12.2
SERVICING AND CLEANING OF AIRLESS
HARD-METAL TIPS
STANDARD TIPS
If a different tip type has been fitted, then clean it according to
manufacturer’s instructions.
The tip has a bore processed with the greatest precision. Careful
handling is necessary to achieve long durability. Do not forget
the fact that the hard-metal insert is brittle! Never throw the tip
or handle with sharp metal objects.
The following points must be observed to keep the tip
clean and ready for use:
1.
Turn the relief valve handle fully counterclockwise (
k
Circulation).
2.
Remove the tip from the spray gun.
3.
Place tip in an appropriate cleaning agent until all coating
material residue is dissolved.
4.
If there is high-pressure air available, blow out tip.
5.
Remove any residue by means of a sharp wooden rod
(toothpick).
6.
Check the tip with the help of a magnifying glass and, if
necessary, repeat points 3 to 5.
12.3
SPRAY GUN ACCESSORIES
Flat jet adjusting tip
up to 250 bar (25 MPa
Contact protection
for the flat jet adjustment tip
Order No.
0097 294
Tip extension with
slewable knee joint
(without tip)
Tip extension
Length: 100 cm
Order no.
0096 015
Length: 200 cm
Order no.
0096 016
Length: 300 cm
Order no.
0096 017
15 cm, F-thread, Order no.
0556 051
15 cm, G-thread, Order no.
0556 074
30 cm, F-thread, Order no.
0556 052
30 cm, G-thread, Order no.
0556 075
45 cm, F-thread, Order no.
0556 053
45 cm, G-thread, Order no.
0556 076
60 cm, F-thread, Order no.
0556 054
60 cm, G-thread, Order no.
0556 077
Tip
marking
Bore mm
Spray width at about 30 cm
removal of spray object
Pressure 100 bar (10 MPa)
Use
Flat jet
adjusting tip
Order No.
15
0.13 - 0.46
5 - 35 cm
Paints
0999 057
20
0.18 - 0.48
5 - 50 cm
Paints, fillers
0999 053
28
0.28 - 0.66
8 - 55 cm
Paints, dispersions
0999 054
41
0.43 - 0.88
10 - 60 cm
Rust protection paints
- dispersions
0999 055
49
0.53 - 1.37
10 - 40 cm
Large-area coats
0999 056
