Special radial piston pumps SRK701

BIERI special radial piston pumps SRK are extremely robust radial devices with highest reliability, even under roughest conditions and suitable for applications with low viscous media.

Max. operating pressure 700 bar
Displacement volume 0.47 to 6.33 cm³/rev
Max. rotation speed 1800 rpm

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Features Advantages
Robust design High volumetric efficiency
Low piston clearance Self-venting and priming
Bearings are designed for maximum constant pressure (700 bar) Low pulsation
Minimized dead volume of pistons, linked together with optimized
design of suction valves 		Long operating lifetime
Modular pump system Suitable for operation with fluids with
reduced lubricating properties

Applications

  • Specially designed for demanding applications with continuous pressures up to 700 bar → long economic lifetime!
  • Test benches
  • Suitable for operation with low viscous media

Design

  • Radial piston pump of modular design
  • With valve controlled pumping elements
  • With 3, 5 or 7 pumping elements
  • Optimized pistons with hard coating
  • Polygon eccentric

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 (-40°C on request)
Viscosity range 5 to 220 mm²/s
Max. operating pressure 700 bar
Operation pressure suction side -0.2 bar to 0.5 bar gauge pressure
Displacement volume 0.47 to 6.33 cm³/rev
Filtration (recommendation) according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Axial force onto driving shaft can't be taken up
Radial force onto driving shaft on request
Max. rotation speed 1800 rpm
Direction of rotation any
Suction height max. 500 mm
Weight see technical data sheet
Materials pressure flange: forged steel
driving shaft: steel
cover: diecast aluminium