Combination pumps BKP

BIERI combination pumps BKP consists of the robust radial device BRK and a flanged external toothed gear pump. The modular design allows any BIERI radial pistion pump (BRK and MRK) to be adapted with a gear pump. This results in multitudinous variations and combinations.

Operating pressure LP up to 250 bar
Operating pressure HP up to 1000 bar
Displacement volume LP 4.0 to 62.7 cm³/rev
Displacement volume HP 0.24 to 8.14 cm³/rev
Rotation speed 600 to 2000 rpm

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[Translate to EN:] Kombinationspumpen BKP
Features Advantages
Combination of a gear pump giving a high
displacement at lower pressure with a radial
piston pump providing high pressure
with a lower displacement 		Self-priming and venting (gear pump and
BRK)
HP 500, 700 or 1000 bar Modular pump system, numerous combinations
Each pump has its own suction and pressure connection Long operating lifetime
Special combination with twin gear pump available on request Very high suction performance

Applications

  • Applications with a fast approching
    travel followed by a working stroke with
    high load
  • Presses
  • Lifting and advancing systems
  • For two different hydraulics circuits with
    different pressures and deliveries

Design

  • Combination pump consisting of an external gear pump and a BRK pump
    (501, 502, 701, 702, 11 or 1002) from BIERI
  • Each pump has its own suction and pressure connection
  • The BRK pump is coupled through an intermediate flange and
    coupling onto the gear pump (primary pump)
  • Completely assembled, ready for installation
  • Special combination with twin gear
    pump available on request
  • MKP: BKP with MRK multi-outlet pump
    instead of the BRK on request

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 (piston pump) 500, 700 or 1000 bar
Operation pressure suction side -0.2 bar to 0.5 bar gauge pressure
Displacement volume high pressure 0.24 to 8.14 cm³/rev
low pressure 4.0 to 62.7 cm³/rev
Filtration (recommendation) according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight see technical data sheet
Radial force / Axial force onto driving shaft can't be taken up
Installation position any
Rotation speed 600 to 2000 rpm
Direction of rotation clockwise
Suction height max. 500 mm
Materials gear pump housing: aluminium
gear: steel
shaft: steel
Materials radial piston pump see technical data sheet BRK pumps