Drum pump for mixing and/or pumping

F 426

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The Drum pump F 426 is ideal for mixing and/or pumping inhomogeneous media. You can keep media moving that tend to segregate, even during pumping. With the outlet closed, e.g. via a hand nozzle, the F 426 can be temporarily operated as pure mixing pump. By turning the adjusting lever, the pump can be easily adjusted to "mixing" or "pumping". The pump is easy to dismantle for rapid cleaning. The pump is available in stainless steel and polypropylene. The stainless steel version can also be used in hazardous areas.

 

  • Application areas: Ex  

Technical data:

  • Flow rate: max. 240 l/min1
  • Delivery head: max. 13 mwc2
  • Viscosity: min. 1 mPas - max. 1200 mPas2
  • Outer tube diameter: min. 41 mm3 - max. 50 mm3
  • Immersion length: 1000, 1200
  • Materials outer tube: Polypropylene, Stainless steel
  • Media / Fluids: Acids, Alkalis, Petroleum products, Highly flammable media, Solvents
  • Seal: with mechanical seal
  • 1 The maximum delivery rate is a test bench value, measured with water at 20 ° C at the pressure port of the pump, without accessories (hose, nozzle, flow meter). The practically achievable delivery rate is lower. It depends on the individual application, the fluid properties and the pump configuration. Please refer to technical data sheets / performance diagrams.
  • 2 dependent on pump model, motor and medium
  • 3 dependent on pump model

Product attributes

  • Mixing and/or  conveying of inhomogeneous liquids
  • Two control levers to easily open/close  the mixing openings
  • Mixing openings allow backflow of medium for mixing back into the container
  • With mechanical seal for inner tube seal
  • Inner tube with metal core at PP
  • Can be combined with various motors as required

Benefits

  • 3 operating modes in one pump:
    - Conveying
    - Conveying with simultaneous mixing
    - Temporarily mixed operation
  • Switching operating modes is possible even while operating
  • Easy to dismantle for cleaning
  • Distinct feature, only at FLUX: The inner tube is reinforced with a metal core on the PP model. It prevents leakage and unnecessary wear of the mechanical seal in all operating temperature ranges
  • Temporary operation against closed valve (e.g. hand nozzle, ball valve) is possible (until the indicated max. operating temperature has been reached. 
  • Stainless steel version can be used in hazardous area
  • Appropriate motors

    Commutator motors
    FEM 4070
    Delivery rate max. 215 l/min
    Delivery head max. 10 mwc

    F 457/ F 457 EL
    Delivery rate max. 220 l/min
    Delivery head max. 12 mwc

    F 458 / F 458 EL
    Delivery rate max. 200 l/min
    Delivery head max. 9,5 mwc

    460 Ex / F 460 Ex EL
    Delivery rate max 200 l/min
    Delivery head max. 9,5 mwc

    F 458-1/ F 460-1 Ex
    Delivery rate max 220 l/min
    Delivery head max. 12 mwc

    Brushless motor
    FBM 4000 Ex
    Delivery rate max. 220 l/min
    Delivery head max. 11 mwc

    Three-phase gear motor
    F 414
    Delivery rate max. 185 l/min
    Delivery head max. 11 mwc

    Compressed-air motor
    F 416 Ex / F 416-1 Ex / F 416-2 Ex
    Delivery rate max. 240 l/min
    Delivery head max. 13 mwc

    The maximum delivery rate is a test bench value, measured with water at 20°C at the pressure port of the pump, without accessories (hose, nozzle, flow meter). The practically achievable delivery rate is lower. It depends on the individual application, the fluid properties and the pump configuration. Please refer to technical data sheets / performance diagrams.

  • Media examples

    Outer tube material polypropylene:
    Hydrochloric acid, boric acid, sulfuric acid, citric acid, lactic acid, phthalic acid, sodium hydroxide, potassium hydroxide, ammonia water

    Outer tube material stainless steel:
    Petroleum, diesel, heating oil, hydraulic oil, machine oil, engine oil, gasoline, formic acid (85 %), ethyl glycol, petroleum, "MEK (methyl ethyl ketone = butanone), octane, ethanol, methanol, butanol, acetan, toluene, isobutanol, propanol, xylene, urea solutions, white spirit, diesel

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