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Proportional spool valve
Proportional spool valve

Proportional spool valve with integrated
electronics NG4-Mini
Wandfluh standard
Flange construction
◆ direct operated
◆ Q = 20 l/min
max
◆ Q N max = 12 l/min
◆ p = 350 bar
max

DESCRIPTION APPLICATION
Direct operated proportional spool valve with 4 connections in Proportional spool valves are perfectly suitable for demanding
5-chamber system with integrated electronics. The Plug & Play tasks due to the high resolution, large volume flow and low hyste-
valves are factory set and adjusted and have therefore a high resis. The applications are in the industry as well as in the mobile
valve-to-valve reproducibility. With protection class IP67 for the hydraulics for the smooth control of hydraulic actuators. Some
electronics, these valves are suitable for harsh environmental examples: control of the rotor blades of wind generators, forestry
conditions. Proportional to the electronically transmitted command and earth moving machines, machine tools and paper production
value, the spool stroke, the spool opening and the valve volume flow machines, simple position controls, robotics and fan control.
increase. The control takes place via an analogue interface or a Miniature values are used where both, reduced dimensions and
fieldbus interface (CANopen, J1939 or Profibus DP). The paramete- weight are important.

risation takes place by means of the free of cost parameterisation Note! „PASO” is a Windows programm in the flow diagram
and diagnostics software «PASO» or via fieldbus interface. The style, which enables the intuitive adjustment and storing
USB parameterisation interface is accessible through a screw of all variable parameters. The data remain saved in
plug. As an option, these valves are available with integrated case of a power failure and can also be reproduced and
controller. As feedback value generators sensors with voltage or transferred to other DSV.
current output can be connected directly. The available controller
structures are optimised for applications with hydraulic actuations.

SYMBOL
Symmetrical control
ACB-S AC1-S CB2-S
A B A B A B

a 0 b a b
a b a b
P T P T P T

Meter-in control
ADB-V AD1-V DB2-V
A B A B A B
0
a b a b
a b a b
P T P T P T

ELECTRICAL SPECIFICATIONS ACTUATION
Protection class IP67 with suitable mating connector and Actuation Proportional solenoid, wet pin push
closed housing cover type, pressure tight
Ramps Adjustable Connection Via device receptacle
Parameterisation Via fieldbus or USB
Supply voltage 12 VDC, 24 VDC

Note! Exact electrical specifications and detailed description
of «DSV» electronics can be found on data sheet
1.13-76.

www.wandfluh.com Illustrations are not binding Data subject to change 1/6 Edition: 19 30 1.10-3240 E
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