Bieri

Seated valves Type WV700

Type WV700 NG 6 up to 25 l/min

Features

  • Direct operated
  • Leakage free
  • High duty cycle
  • Long lifetime through hardened poppets and valve seats
  • Positive overlap (exceptions see product information)
  • Available as 2/2-, 3/2-, 4/2-, 3/3- or 4/3-valve solenoid or manual actuated

Design

  • 1 up to 4 valve cartridges depending on valve type

Applications

  • Controlling of cylinders and motors in higher pressure ranges as full replacement for spool valve technology (especially for leakage free holding, bending and clamping)
  • In machine tools, hoisting technology, test stands and rescue devices
  • Power units (e.g. as with limited space conditions or weight reduction)

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 (optimal: 10 to 68) 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 according to NAS 1638, class 6 resp. ISO/DIN 4406 Klasse 17/15/12 Duty cycle ED 100 % Solenoid power 12 VDC (30 W), 24 VDC (31 W), 107 VDC (37 W), 196 VDC (40 W) Power tolerance +/– 10 % Switching time 40 – 120 ms Material/Surface finish of the valves Galvanized steel, black chromated  

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