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Spool valve
Spool valve Spool valve
HYDRAULIC CONNECTION ACCESSORIES Spool valve
Fixing screws Data sheet 1.0-60 Flange construction NG10
54 ISO 4401-05
Threaded subplates Data sheet 2.9-40 ◆ roller operated
P ◆ 4/2-way with spring reset
Multi-station subplates Data sheet 2.9-70
Q = 160 l/min
1.5 ◆ max
A B 16.8 Horizontal mounting blocks Data sheet 2.9-110
46 ◆ p = 350 bar
max
9.7 Technical explanations Data sheet 1.0-100
T To
Hydraulic fluids Data sheet 1.0-50
Filtration Data sheet 1.0-50
20.8 DESCRIPTION APPLICATION
24 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. Manually or
the offset position. mechanically operated valves are particularly suitable for use in
installations where no electric current is available or for appli-
cations in explosion hazard areas.
SEALING MATERIAL STANDARDS
NBR or FKM (Viton) as standard, choice in the type code Mounting interface ISO 4401-05
Contamination ISO 4406
efficiency TYPE CODE
WD T F A10 - - #
Spool valve, direct operated
Roller with spring reset
INSTALLATION NOTES SURFACE TREATMENT Flange construction
Mounting type Flange mounting ◆ The valve body is painted with a two component paint
4 fixing holes for ◆ The hand lever housing, the screws and the cover are zinc International standard interface ISO, NG10
socket head screws M6 x 65 coated
Mounting position Any, preferably horizontal Designation of symbols acc. to table Operation a-side …1
Operation b-side
…2
Tightening torque M = 8,9 Nm (screw quality 8.8, zinc
D
coated) Fixing screws Sealing material NBR
FKM (Viton) D1
Note! The length of the fixing screw depends on the base NBR 872 y-Z604
material of the connection element.
Design index (subject to change)
1.5-56
GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Designation 4/2-spool valve Working pressure p = 350 bar
max
Construction Direct operated Tank pressure p = 100 bar
T max
Mounting Flange construction Maximum volume flow Q = 160 l/min, see characteristics
max
Nominal size NG10 according to ISO 4401-05
Actuation Roller actuated Leakage oil See characteristics
Ambient temperature -25…+70 °C Fluid Mineral oil, other fluid on request
2
2
Weight 2,85 kg Viscosity range 12 mm /s…320 mm /s
MTTFd 150 years Temperature range -25…+70 °C (NBR)
fluid -20…+70 °C (FKM)
Contamination Class 20 / 18 / 14
efficiency
ACTUATION Filtration Required filtration grade ß 10…16 ≥ 75,
Actuation Roller see data sheet 1.0-50
Actuation stroke s = 4 mm
Actuation force F = 110 - 135 N at p T max
b
Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 sales@wandfluh.com
www.wandfluh.com Illustrations are not binding Data subject to change 4/4 Edition: 16 33 1.5-50 E www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 21 22 1.5-56 E
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