Sliding vanes pumps

GREENPUMPS GPA Sealless Sliding Vanes pumps are designed and fabricated for constant low flow and high head self regulating applications.

All GREENPUMPS, due to the construction features are thought to have zero leakages even in extreme working conditions.

Absence of mechanical seal or packing gland eliminates dangerous emission to protect the environment and workers.


GREENPUMPS GPA Sliding Vane pump can maintain design head and flow for during an extended running period because of self-compensating carbon vanes.

GPA are suitable for thin non-lubricating mediums eliminates pressure drop and without rapid wear of carbon parts.

  • Head up to 13 Bar (188 PSI)
  • Flow up to 2000 l/h (7 GPM) @ 50 Hz / up to 2400 l/h (9 GPM) @ 60 Hz
  • Dry self-priming up to 2,5m (8 feet) of water
  • Temperature range -70°C (-100 °F) up to 200°C (392°F)
  • Specific gravities up to 2 kg/dm³
  • Viscosities up to 2000 cPs (8 poles motor)
  • System pressure rating 16 bar (232 PSI) special design up to 450 bar (6500 PSI) and over


  • Fully encapsulated external magnet
  • Bronze Rub ring standard on coupling housing
  • Dry Self-priming without damages
  • No metal-to-metal contact, no internal slip
  • Possibility to run with frequency converter
  • Heavy-duty machined pressure parts
  • Easily replaceable carbon cartridge
  • Low maintenance costs
  • High MTBF (mean time between failure)
  • High torque Cobalt Samarium magnets
  • Coupling housing available for all series.
  • Pumps are also available in compliance with ATEX regulation category EX II 2 G