FAQ

Pressure versions for air-atomizing spray guns:

- Conventional atomizing
- HVLPPlus
- Medium-pressure
- HVLP

Conventional atomizing: Spraying material is atomized at pressures of
between 1.5 and 8 bar.

Medium-pressure and HVLPPlus: Spraying material is atomized at pressures of between
0.7 and 1.5 bar. HVLPPlus achieves especially fine atomization.

Bei HVLPPlus wird zusätzlich eine besonders feine Zerstäubung erzielt.

HVLP: Spraying material is atomized at pressures of up to 0.7 bar.

The air input pressure in medium-pressure, HVLP plus and
HVLP is approx. 3.5 bar. HVLP and HVLPPlus allow you to
achieve a particularly high transfer efficiency, thus saving
material and compressed air.

Automatic spray guns with internal control

In automatic spray guns with internal control, the spraying air
is controlled by an integrated valve. When the spray gun is
activated, the spraying air is first switched on and then the
paint supply is opened. Closing takes place in reverse order.
The quantity of round-jet and wide-jet spraying air can be
adjusted at the gun.

Automatic spray guns for external control

In automatic spray guns for external control, the spraying air is
not automatically activated by the control air. The control air is
merely used to open the material duct. Round-jet and wide-jet
air need to be externally activated and controlled. This allows
easy adaptation of the spraying jet geometry to different surface
dimensions. It is also possible to use the spraying air to
cool the gun after the spraying process or to use the spraying
air to air-blast the object.

Automatic spray guns with a diaphragm

The diaphragm spray gun is an alternative to spray guns with
a needle. Due to the diaphragm, the material-carrying parts of
the gun are hermetically separated from the air-side components.
There is no needle going through the gun. The gun is
opened by a pneumatic pulse. This relieves the pressure from
the rear spring located in the air chamber. This special design
operates without wear and is the ideal choice for problematic
materials (e.g. abrasive or moisture-curing materials).
The following models are available:

- PILOT WA 515-Membrane
- PILOT WA XV-Membrane
- PILOT WA Signier-Membrane

Mounting systems for automatic spray guns

Matching mounting systems are available for every automatic
spray gun. Spikes, flanges, cross clamps, flange clamps, foot
clamps, angle clamps and hinge clamps are all available. We
will gladly assist you.

Spray guns for recirculation systems

The material is pumped from the container to the spray guns.
After the last spray gun, the material returns to the container
via a back-pressure controller. This means that the material is
constantly in circulation and does not settle in the lines.

Multi-layer filters

More environmental protection due to high filtration efficiency.

The decisive factor in meeting pollution limits is the basic design of the separator as a filter with deep filtration. The mats consist of several stacked paper filter layers with a large number of perforations that allow the exit air to pass through. This deep filtration effect is cleverly exploited in two ways. Firstly, the perforationsin each paper layer have an offset arrangement to the previous layer. This produces turbulences in the air flow, forcing the solid particles to settle on the filter.

Cost savings due to long service life

Secondly, the perforations become progressively smaller, thus providing a filtration point for every single paint droplet in the exhaust air. The final layer consists of especially finely woven lamella. If required, filters with a final layer of synthetic material can also be used, thus allowing the filtration of ultar-fine particles.

For universal use

Furthermore, correctly attaching the mat to the fixing bars will reliably prevent the paper from sagging or tearing. After all, the paper has to carry a heavy weight as it fills with spraying material.

Nozzle inserts

A nozzle insert consists of an air cap, a material nozzle and a
needle. When ordering spare parts, it is generally advisable to
order the entire nozzle insert. We will be happy to advise you.

Repair kits

A repair kit consists of all wearing parts.

Experimental laboratory

The optimum coating technologies are developed in the
state-of-the-art WALTHER PILOT experimental laboratory.
These services are normally offered free of charge to our
customers.

 

WALTHER PILOT

HVLP Plus

Multi Layer filter

Spray Coatings Systems

Lift for Drum Covers

Marking