Directional poppet valves WV700

The BIERI series WV700 are direct operated and poppet tight directional poppet valves out of the series NG6 700 bar, suitable for highest demands. The modular principle of the major components allows a great variety of symbols 2/2-, 3/2-, 3/3-, 4/2-, 4/3- functions with positive or negative overlap. Hence these valves are superior and space-saving alternatives to spool valves which require additional shutoff valves.

Max. operating pressure 700 bar
Max. flow rate 25 l/Min
Porting NG 6 according to DIN 24340 / ISO 4401 / CETOP RP 121 H

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[Translate to EN:] Wege-Sitzventile Typ WV700
Features Advantages
Pressure compensated design of valve cones, high magnetic force and strong return spring Safe and fast switching, bidirectional flow on open shift position and double tight, leakage free tightness in closed position
Hardened seat elements (cone and seat) Long operating lifetime and reliability
Zinc nickel coated coils are optional available, valve body made of zinc coated and black passivated heat-treated steel High corrosion resistance

Applications

  • Control of cylinders and motors as superior and space-saving alternatives to spool valves which require additional shutoff valves
  • Machine tools
  • Lifting and screwing technology
  • Test rigs
  • Power units
  • Bridge building

Design

  • 1 up to 4 valve cartridges depending on valve type
  • Hidden manual override
  • Available as 2/2-, 3/2-, 4/2-, 3/3- or 4/3-directional poppet valve with solenoid-, manual-, pneumatic or hydraulic actuation
  • Pressure balanced valve cones
  • Use of check valves and orifice plates with intermediate plate possible (see technical data sheets ZP700, RV700 and BL700)

Technical Data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range -20 to 80 °C
Ambient temperature range -30 to 50 °C
Viscosity range 5 to 400 mm²/s
Porting NG 6 according to DIN 24340 / ISO 4401 / CETOP RP 121 H
Max. operating pressure connection P, A, B 700 bar
Max. operating pressure connection T 350 bar
Max. flow rate 25 l/min
Filtration (recommendation) According to NAS 1638 class 6 or ISO/DIN 4406 17/15/12
Duty cycle DC 100 %
Solenoid voltage (nominal power) 24 VDC (29 W), 106 VDC (29 W), 205 VDC (30 W)
Voltage tolerance +/- 10%
Switching time 40 - 120 ms
Degree of protection IP 54 according to EN 60529 / DIN 40050 (on request IP 65)
Material Valve body: Steel galvanized, black chromated, aluminium
  Solenoid: Steel browned