News WS700 Directional poppet valve cartridge
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News: Directional poppet valve cartridge WS700

The new BIERI directional poppet valve WS700 from the size NG6 series is the first available direct operated and seat tight cartridge valve in the market for pressures up to 700 bar. The bidirectional flow allows all ports to be loaded with max. pressure. The use of this slim cartridge valve offers increased space when designing compact and light-weighted control blocks and high pressure power units.



  • Bidirectional flow in open shift position
  • Cartridge valve NG6, 700 bar, 25 l/min
  • Pressure compensated hardened and grinded
    design of cones, high magnetic force and strong
    return spring
  • 360° rotatable and exchangeable plug-in-coil
  • Zink-nickel coated coil


  • 2/2 and 3/2 way functions, seat tight and flow in both directions
  • Safe and fast switching
  • High amount of cycles and long lifetime
  • Arbitrary position of solenoid coil
  • Replacement of coils without opening of
    the pressure tight spaces
  • Good corrosion resistance



  • Portable power units
  • Hydraulic tools
  • Hydraulic torque wrenches
  • Rescue tools
  • Small presses
  • Lifting and transport systems
  • Construction & Recycling


Technical data

  • Porting NG 6           
  • p: 700 bar
  • Q: 25 l/min
  • U: 12, 24 VDC, 110, 230 VAC



Our products and services


You will find powerful Radial Piston Pumps up to 1000 bar as well as space-optimizing Axial Piston Pumps with the smallest flow rates and high pressures.


Our valves in nominal sizes 4 and 6 with pressures up to 1000 bar have been well tested and are reliable. They are available in several switching positions and designs.

Systems and accessories

Modular High-Pressure Power Units, Pressure Switches, Level Switches and various accessories complete our product range.

Bieri Hydraulik AG
Könizstrasse 274
CH-3097 Liebefeld

Tel. +41 31 970 09 09
Fax +41 31 970 09 10