General View Of Application; Application; Coating Materials; Description Of Unit - Wagner Prospray 22 Betriebsanleitung

General view of application

2. General view of application

2.1 Application

All painting jobs in the workshop and on the building
site, small dispersion work with the spray gun or internally fed
Airless roller.
Examples of objects of spraying
Doors, door frames, balustrades, furniture, wooden cladding,
fences radiators (heating) and steel parts, internal ceilings and
walls.

2.2 Coating materials

Processible coating materials
Pay attention to the Airless quality of the
i
coating materials to be processed.
Dilutable lacquers and paints or those containing solvents, two-
component coating materials, dispersions, latex paints.
No other materials should be used for spraying without WAGN-
ER's approval.
Filtering
Despite suction filter and insertion filter in the spray gun, filtering
of the coating material is generally advisable.
Stir coating material before commencement of work.
When stirring the material with motor-driven
i
agitators, make sure that no air bubbles are
stirred in. Air bubbles cause problems when
spraying and can lead to interruption of oper-
ation.
Viscosity
With this unit it is possible to process highly viscous coating ma-
terials of up to around 20.000 MPa·s.
If highly viscous coating materials cannot be taken in by suc-
tion, they must be diluted in accordance with the
manufacturer's instructions.
Two-component coating material
The appropriate processing time must be adhered to exactly.
Within this time rinse through and clean the unit meticulously
with the appropriate cleaning materials.
Coating materials with sharp-edged additional
materials
These have a strong wear and tear effect on valves, high-pres-
sure hose, spray gun and tip. The durability of these parts cane
be reduced appreciably through this.
28
GB

3. Description of unit

3.1 Airless process

The main areas of application are thick layers of highly viscous
coating material for large areas and a high consumption of ma-
terial.
A piston pump takes in the coating material by suction and con-
veys it to the tip. Pressed through the tip at a pressure of up to
a maximum of 23 MPa (230 bar), the coating material is atom-
ized. This high pressure has the effect of micro fine atomization
of the coating material.
As no air is used in this process, it is described as an AIRLESS
process.
This method of spraying has the advantages of finest atomiza-
tion, cloudless operation and a smooth, bubble-free surface. As
well as these, the advantages of the speed of work and conve-
nience must be mentioned.

3.2 Functioning of the unit

In the following there is a short description of the technical con-
struction for better understanding of the function.
WAGNER ProSpray units are electrically driven high-pressure
spraying units.
A gear unit transfers the driving force to a crankshaft. The
crankshaft moves the pistons of the material feed pump up and
down.
The inlet valve is opened automatically by the upwards move-
ment of the piston. The outlet valve is opened when the piston
moves downward.
The coating material flows under high pressure through the
high-pressure hose to the spray gun. When the coating material
exits from the tip it atomizes.
The pressure regulator controls the volume and the operating
pressure of the coating material.
Description of unit
ProSpray 22