Page 265 - Softbound_Edition_19_en

Spool valve
Spool valve

Spool valve
NG6
Flange construction ISO 4401-03
◆ roller operated
◆ 4/2-way with spring reset
◆ Q = 80 l/min
max
◆ p = 350 bar
max

DESCRIPTION APPLICATION
Direct operated valve, roller operated with 4 connections in 5 Spool valves are mainly used for controlling direction of movement
chamber design. Without actuation, the spool is switched back to and stopping of hydraulic cylinders and motors. The direction of

the offset position. movement is determined by the position of the spool and its symbol.

Manually or mechanically operated valves are particularly suitable
for use in installations where no electric current is available or for

applications in explosion hazard areas.

TYPE CODE
WD T F A06 - - #
Spool valve, direct operated

Roller with spring reset

Flange construction
International standard interface ISO, NG6

Designation of symbols acc. to table Operation a-side …1
Operation b-side …2
Sealing material NBR
FKM (Viton) D1
Design index (subject to change)
1.5-46

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Designation 4/2-spool valve Working pressure p = 350 bar
max
Construction Direct operated Tank pressure p T max = 100 bar
Mounting Flange construction Maximum volume flow Q = 80 l/min, see characteristics
max
Nominal size NG6 according to ISO 4401-03
Actuation Roller operated Leakage oil See characteristics
Ambient temperature -25…+70 °C (NBR) Fluid Mineral oil, other fluid on request
-20…+70 °C (FKM) Viscosity range 12 mm /s…320 mm /s
2
2
Weight 1,27 kg Temperature range -25…+70 °C
fluid
Contamination Class 20 / 18 / 14
ACTUATION efficiency

Actuation Roller Filtration Required filtration grade ß 10…16 ≥ 75,
Actuation stroke s = 2,6 mm see data sheet 1.0-50
Actuation force F = 110 - 135 N at p
b T max

www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 18 18 1.5-46 E
Page 265