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Rev. 1.4
6 Operation
6.1 General Information
This device may only be operated if the safety-related equipment is permanently effective and not suspend-
ed during operation or altered in its intended effectiveness.
6.2 Operation Instructions / Operating Conditions
CAUTION
Never point the jet at people. The wearing of eye protection is strongly recommended. The
spraying process can create noise depending on the air and fluid pressures used. Ear pro-
tection should be worn, if required.
WARNING
Danger caused by flammable, harmful fluid. Always follow the safety instructions on the con-
tainer or the safety data sheet for the fluid.
The VMS-02 full jet valve usually works with a control air pressure of 5-6 bar and material pressures of up to
30 bar. In case high material pressures are necessary, the safety regulations of the trade association must
always be observed.
The valves are suitable for contactless and regular application and can be controlled for intermittent or con-
tinuous use. According to the individual application, the control air must be adjusted to the operating cycles
and to the higher or lower material pressures. 40 tacts per second can be reached under appropriate operat-
ing conditions (material pressure, control air pressure, needle stroke, and short conductions).
The amount of material can be regulated via the stroke adjustment of the needle. A left turn of the regulating
knob increases the material amount. A fine precision thread affects a needle rise that results in an
adjustment of 0.5 mm with each turn of the adjusting knob.
IMPORTANT
A plant-specific setting is required for an optimal adjustment of the application pattern.
Starting values from laboratory tests can be used as a basis. However, these may need to
be adjusted for the specific plant. A combination of the following parameters is necessary:
nozzle size, opening time, opening stroke, material pressure and temperature (if applicable.
It is harmless to leave fluid in the valve during longer standstills if system stays under pressure (no
connection to outside air.
Assembly Instructions – Full-Jet Valve VMS-02
Walther Systemtechnik GmbH – D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de – info@walther-2000.de
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