RMF Systems Off-Line Units – OLU1B

RMF Systems off-line units attack contamination in your system at the source.  In addition to solid particles, these filters are also capable of removing water from the oil.  The use of RMF filters means less defects, less maintenance and less wear and tear of the hydraulic components.  These units can be fitted to every imaginable industrial application where hydraulic or lubrication systems are present.

The RMF Systems radial micro filter units are characterized by their extremely efficient filter elements with a fineness of down to

0,5 micron. If required, different micron sizes are available to suit any application. The RMF Off-Line Units are specially designed for industrial hydraulic installations. The Off-Line Units are available in single or multiple housing configurations.

The Off-Line Units can be easily mounted to new and existing hydraulic installations. By means of an integrated pump-motor unit in the Off-Line Units, the oil is pumped from the reservoir through the filter unit. After filtering the oil is returned to the tank. Off-Line Units can continue to work even when the main system is not in use. Element change can also be done without interfering with the main system.

  • Steel industry
  • Plastic injection moulding
  • Power generation
  • Marine industry
  • Pulp & paper industry
  • Cement industry
  • Flight simulators


  • Extremely clean oil due to high filtration efficiency
  • Prevention of channel forming by radial filtration direction
  • Large dirt and water holding capacity
  • Compact and easy maintenance
  • Environmentally friendly elements available
  • Longer usage life for oil and components
  • Reduces cost of ownership


Product Specs

Filter housing material: Anodised Aluminium

Seal material: NBR or FPM (see ordering code)

Nominal flow: 4.2 l/min

Standard max. oil temperature: 80 °C

Max. pressure filter housing: 20 bar

Inlet connection: ½” BSP female

Outlet connection: ½” BSP female

Power supply electric motor: Various

Suitable filter elements: Cellulose and Glass Fiber

By-pass opening pressure: 6.2 bar (at 0 bar back pressure)

Pump safety valve: 15 bar

Max. tank volume: ± 2,700 l

Fluid compatibility: Hydraulic fluids according to ISO 2943

Approximate weight: 18.0 kg

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