FDMH 25

High pressure air pump up to 290 psi operating pressure

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The FLUX air-operated diaphragm pump FDMH 25 in injection-moulded and especially designed for pressure increase (3:1). The pump is self-priming and protected against dry running. The pump is distinguished for its versatility and can be used for pumping low to high viscosity media with solid particles, abrasive media, highly flammable media or liquids with high gas content.
  • Application areas: Atex  

Product attributes

  • Moulded version
  • Self-priming even from a dry start
  • Variable delivery rates by adjusting air pressure to the pump
  • No need of by-pass control
  • Fully submersible
  • Unbalanced air valve design eliminates stalling
  • Oil-free operation
  • Regulating valve insensitive to foreign matter in the air
  • Suitable for dry run operation
  • Blockage-free, infinitely adjustable operation
  • Long service life
  • Free of wear
  • Service-friendly operation
  • Versions available for use in hazardous areas

Technical Data

  • Flow rate: max. 22 GPM ( 85 l/min)¹
  • Discharge pressure: max. 290 psi
  • Suction lift (dry): max. 9 feet¹
  • Size of solids: 3.2 mm
  • Housing Materials: Stainless steel
  • Media/Fluids: Highly flammable media, Viscous media, Abrasive media, Aggressive media

1 dependent on pump model, operating pressure and medium

2 dependent on the flow behavior of the medium