FP 425 99.98% emptying pump

Minimise waste and improve safety

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When using FP 425 there can be less than 0.05 l residual amount left in a 200 l drum, so maximum 0.02 %. The pump has an integrated backflow valve that can be closed before removing the pump from the container. Thus backflow of remaining liquid in the pump and discharge hose is prevented. These pumps can be specified for use with barrels, drums or IBC's. The F425 is ideal for use with expensive or dangerous liquids where spills and waste should be avoided. It also saves on cleaning and disposal costs when handling problematic chemicals. The pump is available in stainless steel, polypropylene and hastelloy C materials.  FFKM o-rings are available if the pump will be used for particularly aggressive liquids. The stainless steel pump is ATEX certified for use in hazardous areas.


  • Application areas: Atex  

Technical data:

  • Flow rate: max. 120 l/min1
  • Delivery head: max. 26 mwc1
  • Viscosity: min. 1 mPas - max. 1200 mPas1
  • Outer tube diameter: min. 41 mm2 - max. 50 mm2
  • Immersion length: 700, 1000, 1200
  • Materials outer tube: , Stainless steel, Hastelloy C
  • Media / Fluids: Acids, Alkalis, Petroleum products, Highly flammable media, Solvents, Fuels
  • Seal: with mechanical seal
  • Container: 200 l drums, 1000 l IBC
  • 1 dependent on pump model, motor and medium
  • 2 dependent on pump model

Product attributes

  • With mechanical seal
  • Steel core in the inner tube of the PP version for more stability
  • With backflow stop
  • With switch lever to close the backflow stop/foot valve
  • Pulsation-free transfer
  • Transfer against closed valve (e.g. hand nozzle) possible
  • Radial shaft seal prevents the intrusion of vapours and liquid in the coupling area



  • Less than 0.05 l residual amount left in 200 l drum
  • Universally and flexibly applicable
  • Reduction of cleaning and waste disposal costs
  • Optimal use of fluids
  • No tilting to totally empty the drum
  • No longitudinal changes at high and low temperatures
  • No loss of medium when taking the pump from drum to drum
  • Stainless steel and hastelloy C version can be used in hazardous area