Pressure reducing valves type DMM

BIERI cartridge directional poppet valve WS700 are compact, highly reliable and designed for high duty cycles and a long lifetime. The patented valve design is space saving and ready to use in tight installation conditions.

Operating pressure up to 700 bar
Max. flow rate 25 l/Min
Porting NG 6 Cartridge

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[Translate to EN:] Druckminderventil Typ DMM (500+)
Features Advantages
Available as 2/2 or 3/2 directional poppet cardridges with solenoid actuation Poppet tight (bidirectional)
Directly operated High operational safety and relieble switching
Hidden manual override High duty cycles and long lifetime
360° turnable and exchangeable plug-in coil High corrosion resistance
Patented valve design Replacement of coils without opening of the pressure tight spaces
Pressure compensated design of hardened and specially grinded valve cones All connections can be loaded to the maximum operating pressure

Applications

  • Portable power units
  • Control of cylinders as superior and space saving alternatives
    to spool valves which require additional leakage free shutoff valves
  • Forming technology - clamping
  • Presses, test benches and systems
  • Lifting and transport systems
  • Hydraulic tools
  • Accumulator charching systems
  • Seat-tight pilot control of passive and/or active logic valves

Design

  • Pressure compensated design of hardened and specially grinded valve cones
  • Available as 2/2 or 3/2 directional poppet valve cartridges with solenoid actuation
  • Strong return springs
  • 360° turnable and exchangeable plug-in-coil

Technical data

Hydraulic fluid mineral oil according to DIN 51524 T1+T2 (other fluids on request)
Fluid temperature range -20 to 120 °C
Ambient temperature range -20 to 120 °C
Viscosity range 10 to 420 mm²/s
Porting NG 4 according to Bieri standard
Max. operating pressure connection P, A 700/450 bar
Pressure setting connection A 50 - 450 bar
Pressure setting range of the optional pressure protection 50 - 500 bar
Max. flow rate 30 l/min
Filtration (recommendation) according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight see technical data sheet
Materials valve body: stainless steel
cartridge body: high tensile steel
cone: hardened steel