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P. 8
TYPICAL VALVES
Valves adapted to the various applications ensure that the different requirements such as
small leakage, freely adjustable volume flows or pressures as well as seat tight closing of
control lines can be easily realised. The valve is mainly operated manually or electrically.
If the hydraulic performance is to be adjusted continuously and remotely, proportional
hydraulics is used. The valve is controlled with electronics.
SPOOL VALVES, FLANGE WDMF CHARACTERISTICS
Controls the oil flow and can thus, for example, determine the
direction of movement of a cylinder. The valve is screwed as a
flange onto a standardised mounting interface.
FEATURES
• Solenoid valve remotely controlled via intelligent electronics
• Direct or pilot operated
• Optionally detented, for safety in the case of power failure
• Small losses due to low leakage
• Soft switching for reduction of shocks
• Switching position monitoring
AB2
AB1 • Pressure max. 350 bar
A B A B
b
a b a • Flow max. 160 l/min
a b a b
P T P T • Nominal sizes NG3, NG4, NG6, NG10
SPOOL VALVES WITH INTEGRATED ELECTRONICS CHARACTERISTICS
WDRFA06 The volume flow is controlled proportionally to the command
value signal. The valve is factory set.
FEATURES
• Linear characteristics
• High dynamics (35Hz)
• Precise reproducibility and very small hysteresis
• Direct operated
• Integrated amplifier electronics with spool position control
ACB-S
A B
• Optional with controller function
a 0 b
a b • Pressure max. 350 bar
P T
• Flow max. 40 l/min
• Nominal sizes NG4, NG6
POPPET VALVES SANDWICH Z_2204 CHARACTERISTICS
For leakage-free closing functions such as safe holding of
loads, clamping and gripping of workpieces or for pilot control
of larger valves.
FEATURES
• Metallically sealing seat, resulting in an excellent and
long-lasting tight seal
• Direct or pilot operated
• 2/2- and 3/2-way executions
1
a • Seal tight in all directions of flow
2
• Sandwich, flange and cartridge construction types
A P T B
PAGE 6 | WANDFLUH INDUSTRIAL | PRODUCTS | TYPICAL VALVES