Page 407 - Softbound_Edition_19_en

WDPPU08
Proportional spool valve

Proportional spool valve
¾“-16 UNF
Screw-in cartridge construction Wandfluh standard
◆ direct operated
◆ Q = 23 l/min
max
◆ Q N max = 12 l/min
◆ p = 350 bar
max

DESCRIPTION APPLICATION
Direct operated proportional spool valve in screw-in cartridge Proportional spool valves are perfectly suitable for demanding
construction. Precise spool fit, low leakage, long service life time. tasks due to the high resolution, large volume flow and low hyste-
The volume flow adjustment takes place by a Wandfluh proportio- resis. The applications are in the industry as well as in the mobile
nal solenoid. The valve works according to the pull-push principle. hydraulics for the smooth control of hydraulic actuators. Some
With the control of the solenoids, the volume flow direction P to A examples: control of the rotor blades of wind generators, forestry
or P to B can be selected. Thanks to the optimum spool form, sen - and earth moving machines, machine tools and paper production

sitive movement processes are possible. For the control, Wandfluh machines, simple position controls, robotics and fan control.
proportional amplifiers are available (see register 1.13).
SYMBOL
Symmetrical control Meter-in control
ACB-S ADB-V

2 4 2 4
b 0 a b a

3 1 3 1

TYPE CODE
WD P PU08 - - 12 - / - #
Spool valve, directly operated

Proportional

Screw-in cartridge 3/4“-16UNF
Designation of symbols acc. to table
Nominal volume flow rate Q N 12 l/min

Nominal voltage U 12 VDC G12
N
24 VDC G24
without coil X5
Slip-on coil Metal housing, round W
Metal housing, square M

Connection execution Connector socket EN 175301-803 / ISO 4400 D
Connector socket AMP Junior-Timer J
Connector Deutsch DT04-2P G

Sealing material NBR
FKM (Viton) D1
Manual override without
with HP
Design index (subject to change)
1.10-2710

www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 19 34 1.10-2710 E
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