Rev. 1.6
Assembly Instructions - Micro Point Pulse Valve MPP-03-PRO
Page 10 of 22
Walther Systemtechnik GmbH
– D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de
6 Operation
6.1 General Information
The incomplete device may only be operated if the safety-related equipment is permanently effective and not
suspended 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
MPP-03-PRO
Micro Point Pulse Valve usually works with a control air pressure of 5
– 6 bar and material
pressures of up to 100 bar. To obtain a consistent application pattern, the air supply must be kept constant
without any fluctuations.
IMPORTANT
Accident prevention directions will be
strictly
followed when applying high material
pressures. Please strictly follow the following instructions when planning and constructing
application systems!
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. 200 tacts per second can be reached under appropriate oper-
ating 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 adjust-
ment of 0.5mm with each turn of the adjusting knob.
IMPORTANT
A plant-specific setting is required for an optimal adjustment of the application pattern. Start-
ing 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: noz-
zle 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 connec-
tion to outside air).