FP 425 99.98% emptying pump

For 99,98 % drum emptying

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With the F/FP 425 there is 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 is easy to close before taking the pump out of the container. Thus the backflow of the medium in the pump is prevented. This makes optimum use of especially expensive media possible and saves additional cleaning and disposal costs when handling problematic media. The pump is available in stainless steel, polypropylene and hastelloy C. In stainless steel and hastelloy C the pump F/FP 425 can also be used 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