Piston pump with mechanical or electrical drive RA … U

For multi-line lubrication systems

The RA multi-line pump is a unique radial piston pump with composite pump elements. Its modular design allows for the installation of up to five pump elements, each with one, two, or four outlets. This allows for the possibility of reducing or increasing the number of outlets later. The flow rate of all pump element outlets is adjustable using a common adjustment device, ranging from 33 to 100 %. Several different mechanical or electric drives are available.

Technical characteristics and advantages

  • Spot lubrication solution (1-20 lubrication points)
  • Depending on the drive speed, which is determined by the selected gear ratio, RA pumps provide a delivery rate from a few drops of lubricant to 36 cm³/min. (2.2 in³/min)
  • The direction of rotation of the drive is left or right
  • Compatible with mineral and synthetic oils
  • Vibration protection, ATEX and marine grade versions available
  • It provides lubricant supply to several different lubrication zones/points or to chain rollers

Application areas

  • Gas compressors and large pumps
  • Economical unit for oil lubrication systems
  • Marine industry; lubrication of intake valve seats of high-power four-stroke engines
Category:

Description

Technical specifications
Operating principle radial piston pump with composite pumping elements
Operating temperature from −15 to +80 °C from +5 to +176 °F
Working pressure depending on drive speed and oil viscosity from 10 to 63 bar from 145 to 915 psi
Exits from 1 to 20 (max. 5 elements with 1, 2 or 4 outputs)
Lubricant mineral or synthetic oil, viscosity 25–2500 mm2/With
Output dosing volume 0.007–0.02 cm³/rev 0.0004–0.0012 in³/rev
Output performance 0.07–36 cm³/min 0.004–2.2 in³/min
Internal gear ratio 1:1, 5:1, 10,5:1,15:1, 25:1, 75:1, 125:1
Dimensions min. 113 × 54 × 54 mm
max. 220 × 54 × 54 mm
min. 4.45 x 2.13 x 2.13 inches
max 8.68 x 2.13 x 2.13 inches
Drive speed from 10 to 1800 rpm
Protection class min. IP 55
Installation position any
Options with handle for manual pre-lubrication, the version with pre-set volume is equipped with two outlet sections for two different types of oil
Sample order
The product can be configured using a configuration code. The order template includes the applicable part number and an explanation.
RA1UA00/11241/L
  • Radial piston pump
  • Drive, rotary: coaxial without gearbox
  • Gear ratio 1:1
  • Coaxial drive arrangement
  • Pump elements max. 5 elements (1 outlet, 1 outlet, 2 outlets, 4 outlets, 1 outlet)1)
  • Without pre-lubrication of the crank handle
  • The direction of rotation of the drive is left
  • Standard, including FPM seals
More detailed information is available in product catalog.