Rev. 1.1
Assembly Instructions - Dosing Valve Station 9741970.0x
Page 10 of 31
Walther Systemtechnik GmbH
– D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de
3.3 Functional Description
The pneumatic part of the dosing valve is controlled by a pneumatic 5/2-way valve which is integrated in the
handle. Pulling the trigger initiates the grease dosing. The dosing pressure is depending on the pressure in
the grease (medium). The air and grease chambers are separated.
In order to obtain a high quality and precision of repeating during the actual dosing, the whole cycle has to
be completed. In other words, the control piston has to move from the initial position to the dosing position
and back into the initial position.
.
3.4 Versions
9741970.00
Standard Version
9741970.02
Magnetic Tape at air piston as front part for proximity switch
9741970.03
Initiator for controlling the dosing piston. This special construction increases the process
safety. The initiator will send an electric signal once the cycle has been completed, i.e. when
the grease has been released.
For a process-safe function of the initiator, the smallest selected dosing amount has to be
approx. 10% larger then minimum quantity indicated on the valve.
When dosing in the lower limit area, we recommend using the next small valve!
9741970.04
Magnetic Tape at air piston and proximity switch at valve. The special construction increases
the process safety. The proximity switch will send an electric signal once the cycle has been
completed; air piston in the initial position.
CAUTION
For a process-safe function of the initiator, the smallest selected dosing amount has to
be approx. 10% larger then minimum quantity indicated on the valve.
3.5 Total View / Description
3.5.1 9741970.00 Standard
Key
Pos. Description
1
Connection grease
2
Ventilation
3
Adjusting sleeve
4
Connection air
Pneumatic Part
Grease
Part
