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KRACHT GmbH
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KRACHT - Model KF 3/100...KF 6/730 -Transfer Gear Pumps

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Centrifuge construction, Coating machines, Compressors. Engine construction. Filling stations, Filter systems. Generator construction. Heat transfer systems, Heavy electrical machines.Lubricant manufacturers, Lubricating oil systems. Machine-building industry. Machine tools, Manufacture of apparatus, Marine engine construction, Metal-forming machines, Metering systems. Paint industry, Plain metal bearing production, Printing machines, PUR machinery. Refrigerators, Rubber and tire manufacturing. Tank plant construction, Transmission building Turbine construction. Vacuum machinery. Waste oil - disposal, transport, treatment.

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  • Adhcsivcs, Antifreeze
  • Bore oils
  • Cutting oils
  • Diesel oils, Drawing compound
  • Emulsions
  • Fuel oils, L, EL, H
  • Gear oils. Grease
  • Hardening oils. Heat transfer media, Heavy oils. Hydraulic fluids
  • Isocyanate
  • Lubricating oils, Lacquers
  • Motor oils
  • Paint, Paraffins, Plastics, Polyols Printing inks. Processing oils
  • Resins, Rolling oils
  • Waste oils, Waxes
  • KF gear pumps are used for pumping a wide variety of fluids.
  • KF gear pumps are distinguished especially by their wide range of variants which arc assembled as required on the modular principle and also permit subsequent upgrade.
  • The pumps are also suitable for media with low lubricating properties.
  • The standard housing sections are of grey cast iron. The gear units are manufactured from high strength case hardening steel, hardened and mounted in special multicompound plain bearing bushes.
  • The standard drive shaft is sealed by rotary shaft lip type seal.
  • All pump sizes incorporate helical tooth system. This feature, combined with special gear geometry, results in extremely low noise levels and reduced pressure pulsation.
  • The fluids should ensure a certain minimum lubricating properties, should not contain solids and should be chemically compatible.
  • Avoid dry operation.
  • The pumps may only be operated in the specified direction of rotation, as otherwise the shaft seal will be destroyed.
  • In order to prevent excessive overpressure, a safety valve should be provided in the system or on the pump.
  • The pressure relief valve attached to the pump may only be used as safety valve for short-term operation.
  • A separate pressure relief valve with return line to the reservoir must be foreseen, if a partial discharge flow has to be drained over a prolonged period.
  • Sealing of the drive shaft:
    • Rotary shaft lip-type seal
    • Double rotary shaft lip-type seal (Quench)
    • Mechanical seal
  • Outboard bearing to take up input drive-side radial load
  • Pressure relief valve for pump and system
  • Uniform discharge flow direction with changing direction of rotation by means of flange-mounting valve combination (universal device).
  • To meet your individual requirements on request special constructions are available: for instance mounting flange models, various types of plane bearings, etc.
  • Our Sales engineers will be pleased to advise you.
  • Connecting flange
  • 4-bolt type
  • Mounting angles
  • Pressure relief valves (attachable subsequently)
  • Foot mounting flanges for the adaptor flanges below
  • Base plates
  • Couplings
  • Adaptor flanges (pump carrier)