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

Dokumente-Downloads

[Translate to EN:] Mehrkreispumpen MRK 701/702
Features Advantages
Robust radial piston pump, valve controlled: Preeminent power spectrum, broad range, explosion proofed, multiport pumps, different media
Low piston clearance: Very high volumetric efficiency on a wide speed range
Bearings are designed for maximum constant pressure (500 bar): Long operating lifetime
Optimized design of suction and pressure valves: Very high suction performance
Minimized dead volume of pistons, linked together with optimized design of suction valves: Self-venting
Modular pump system: Enables supply of standard pumps as well as special customized models

Applications

  • Multiple hydraulic outlets are needed 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)
Filtration According to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight See product information
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 flanger: steel
Driving shaft: steel
Cover: die casted aluminium