Multi-outlet pumps MRK701/702

BIERI radial pistion pumps MRK are very robust radial devices with various pressure outlets, e.g. for different simultaneous hydraulic motions.

Number of circuits 2 - 9
Operating pressure up to 700 bar
Displacement/Circuit 0,16 up to 3,62 cm3/rev
Speed range up to 2000 rpm

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[Translate to EN:] Mehrkreispumpen MRK 701/702
Features Advantages
Minimized pulsation Very high volumetric efficiency on a wide speed range
Combination with gear pump on request Self venting and self-priming
Outlets with different displacements in the same pump possible Compact design, no external tubing needed

Applications

  • Multiple hydraulic outlets in one pump
  • Power units
  • Test stands
  • Feeder and synchronised lifting systems (Bridge-, shipbuilding)

Design

  • With multiple pumping elements which are combined into two or more pressure ports
  • Valve controlled on suction and pressure port
  • Radial piston pump of modular design

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 220 mm²/s
Max. operating pressure 700 bar continuos pressure (S1)
Suction pressure -0,2 bar to 0,5 bar (relative)
Displacement volume/circuit 0,16 up to 3,62 cm³/rev
Filtration According to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight See technical data sheet
Installation position Any
Axial force onto driving shaft Not allowed
Radial force onto driving shaft On request
Max. speed range 2000 min⁻¹
Direction of rotation Any
Suction height Max. 500 mm
Material Pressure flange: steel
Driving shaft: steel
Cover: die casted aluminium