Complete solutions for all pump requirements

Vacuum & Air

Pressure Pumps

Positive Return Plunger Process Metering Pumps

The range of Positive return plunger metering pumps benefit from OBL's thirty-six years of technical experience in the development of plunger pumps.

Mechanism: Positive return
Max flow rate: 5500 L/h


  • API 675 full motion positive return plunger pump
  • Heavy-duty construction designed for continuous (24 hour) industrial operation
  • Suitable for high pressure applications where accuracy and reliability are essential
  • OBL's metering pumps arc used in several industrial plants. The "L.series ranges from the smallest capacity,4-00 cc}h,to the largest, 11.000 l/h.
  • All models can be built as multiple units; different sizes can be combined.
  • Each pump-head can have a different stroke rate since each has its own reduction gear
  • Power transmission through multiple units is easily achieved by common,low-torque speed shaft
  • ATEX STD compliance (94/9/CE), group II category 2 (zone 1/21) and group II category 3 (zone 2/22)
  • High metering accuracy
  • Horizontal coupling, in all combinations
  • All possible automatic capacity controls available on demand

We are members of the following associations:

Pump Industry AustraliaWIOAChamber of Commerce and Industry WAADIAFPALVacuum Society of AustraliaADIA