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1
General
1.1
Identification of Model Version
Models:
Automatic Spray Guns PILOT WA 450 / PILOT WA 451 /
PILOT WA 452 / PILOT WA 453
Type series:
PILOT WA 450
(Standard version)
V 20 545
PILOT WA 451-U
(Circulation version)
V 20 546
PILOT WA 452 HVLP (Low pressure version)
V 20 547
PILOT WA 452 HVLP-U (Low pressure-Circul.vers.) V 20 548
Manufacturer:
WALTHER Spritz-und Lackiersysteme GmbH
Kärntner Str. 18-30
D-42327 Wuppertal
Tel.: 00 49 202 / 787-0
Fax: 00 49 202 / 787-2217
www.walther-pilot.de • Email: info@walther-pilot.de
1.2
Normal Use
The automatic spray guns of the series PILOT WA 450 are exclusively designed
for use with sprayable material types and grades. All material conduction parts
are made of stainless steel so as to permit handling of hydrous and/or agressive
media such as:
•
paints and lacquers
•
greases, oils and corrosion preventives
•
adhesive compounds
•
ceramic glazes
•
pickling solutions
Should the materials which you want to spray not be listed above, please contact
us for further and detailed information.
Plase note that sprayable material may only be applied to work pieces and/or
similar items.
The temperature of the spraying materials shall never exceed 80° C. The models
PILOT WA 450, WA 451, WA 452 and WA 453 are not designed for manual ope-
ration, and must be installed in a suitable gun mounting device.
The term normal use also implies that any and all safety warnings, operational
handling details, etc., as stated in these operating instructions, must be carefully
read, understood and duly complied with.
This equipment complies with the explosion protection requirements of Directive
94/9/EC (ATEX) for the explosion group, equipment category and temperature
class indicated on the type plate. When using the equipment, the requirements
specified in these Operating Instructions must be observed at all times.
The technical data indicated on the equipment rating plates and the specifications
in the chapter "Technical Data" must be complied with at all times and must not
be exceeded. An overloading of the equipment must be ruled out.
The equipment may be used in potentially explosive atmospheres only with the
authorisation of the relevant supervisory authority.
The relevant supervisory authority or the operator of the equipment are
responsible for determining the explosion hazard (zone classification).
The operator must check and ensure that all technical data and the marking of the
equipment in accordance with ATEX are compliant with the necessary require-
ments.
The operator must provide corresponding safety measures for all applications in
which the breakdown of the equipment might lead to danger to persons.
If any irregularities are observed while the equipment is in operation, the equipment
must be put out of operation immediately and WALTHER PILOT must be consul-
ted.
Grounding / Equipotential Bonding
You must ensure that the spray gun is properly earthed (grounded) either separate-
ly or in connection with the equipment with which it is being used (maximum resi-
stance 10
6
Ω
).
1.3
Improper Use
This spray gun shall not be used for purposes other than set forth in the above
Chapter
Normal Use
. Any other form of use and/or application is prohibited.
Improper use is for example:
•
spraying of material onto persons and animals
•
spraying of liquid nitrogen, etc.
2
Technical Description
The models PILOT WA 450, WA 451, WA 452 and WA 453 are automatic air-con-
trolled guns operating in combination with a 3/2-way control valve. Hand, foot or
solenoid-actuated valves can be used.
Actuation of the 3/2-way valve directs control air into the cylinder inside the gun so
as to open - in sequence - the atomizing air (round - and wide/flat air) and the
material input.The control air, round jet and wide/flat jet are adjusted external by
the plant (see Operating instructions of the plant systems manufacturer).
Closing of the 3/2-way valve is followed by the control air escaping from the cylin-
der inside the gun, upon which the spring-loaded material control needle returns to
its initial position, where it shuts the material and atomizing air input off.
After this, the atomising air is switched off by the 3/2-way valve.
The models PILOT WA 452 and WA 453 are solely low-pressure spray guns and
operate with a spraying pressure of 0.7 bar using an inlet pressure of 4.5 bar.
Summary of Contents for PILOT WA 450
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