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Proportional spool valve
Proportional spool valve

Proportional spool valve
NG10
Flange construction ISO 4401-05
◆ Q = 100 l/min
max
◆ Q N max = 65 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. Precise spool fit, low leakage, long service life tasks due to the high resolution, large volume flow and low hyste-
time. The volume flow adjustment takes place by a Wandfluh resis. The applications are in the industry as well as in the mobile
proportional solenoid. Proportional to the solenoid current, the hydraulics for the smooth control of hydraulic actuators. Some
spool stroke, the spool opening and the valve volume flow increase. examples: control of the rotor blades of wind generators, forestry
For the control, Wandfluh proportional amplifiers are available (see and earth moving machines, machine tools and paper production

register 1.13). machines, simple position controls, robotics and fan control.

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

a 0 b a 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

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

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Designation Proportional spool valve Working pressure p = 350 bar
max
Construction Direct operated Tank pressure p = 160 bar
T max
Mounting Flange construction Maximum volume flow Q = 100 l/min, see characteristics
max
Nominal size NG10 according to ISO 4401-05 Nominal volume flow Q = 65 l/min
N max
Actuation Proportional solenoid Leakage oil see characteristics
Ambient temperature -25…+70 °C Hysteresis ≤ 7 % at optimal dither signal
if >50 °C, I is only conditionally Fluid Mineral oil, other fluid on request
G
achievable Viscosity range 12 mm /s…320 mm /s
2
2
Weight 3,9 kg (1 solenoid) Temperature range -25…+70 °C (NBR)
5,4 kg (2 solenoids) fluid -20…+70 °C (FKM)
Contamination Class 18 / 16 / 13
efficiency
Filtration Required filtration grade ß 6…10 ≥ 75,
see data sheet 1.0-50

www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 21 22 1.10-3400 E
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