Radial piston pumps HRK

BIERI radial piston pumps HRK are very light and compact designed high pressure radial piston devices with hollow shaft. This enables optimum space-saving installation with a direct mounted E-motor (without bell housing and coupling).
Optional adapted with integrated pump protection valve this pump series is unbeatable regarding multifunc-tionality and optimization of installation space.

Operating pressure: up to 700 bar
Displacement volume: 0,12 bis 2,01 cm³/U
Speed Range: 500 bis 2000 (3600) min⁻¹

Dokumente-Downloads

[Translate to EN:] Radialkolbenpumpen HRK
Features Advantages
Compact design Self-venting
Hollow shaft Very high volumetric efficiency on a wide speed range
For direct assembly of motor without bell housing and coupling Space-saving design

Applications

  • Machine tools
  • Clamping device
  • Power units (e.g. for presses, test benches)
  • Pull-off fixtures
  • Lifting systems
  • Mobile power unit
  • Small units
  • For pulsing applications use BRK 701/702

Design

  • With hollow shaft for direct assembly of motor without bell housing and coupling
  • With 1 or 2 pumping elements (depending on size)

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 12 to 220 mm²/s
Max. operating pressure 700 bar continuous pressure
Operation pressure at suction port -0.2 bar to 0.5 bar gauge pressure
Displacement volume 0,12 bis 2,01 cm³/U
Filtration (recommendation) According to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight See technical data sheet
Installation position In tank (any)
Max. speed range 500-3600 min⁻¹ (see technical data sheet)
Direction of rotation Any
Suction height Max. 150 mm
Material Eccentric shaft: steel
Pressure port body: steel
Pump housing and flange: aluminium