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 0,34 cm³/U
Speed Range: 500 bis 3600 min⁻¹

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[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
Operation pressure suction side -0.2 bar to 0.5 bar gauge pressure
Max. operating pressure 700 bar continuous pressure
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)
Speed range 500-3600 rpm
Direction of rotation any
Suction height max. 150 mm
Materials eccentric shaft: steel
pressure port body: steel
pump housing and flange: aluminium