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Oil Free Positive Displacement Air blower

Oil Free Positive Displacement Air blower

  • Features
  • Description

    Available models:

    ML 40 to ML 175

    Air flow: Started from 54 m3/h to 4218 M3/h

    Pressure:  ΔP 1000 mbar


    Positive Displacement machines consist basically of

    a pair of Tri-lobe rotors, mounted on parallel shafts, rotating inopposite directions inside a properly shaped casing closed at the ends by side plates.

    The two Tri-lobe rotors are synchronized by a pair of timinggears.

    As the rotors rotate, air is drawn into the inlet side of the casing,is moved from the inlet to the outlet side by the free volumesbetween rotors and stator and finally is forced out of the outletside against the connected system pressure.

    The machines, being positive displacement type, do not developpressure within the casing but the discharge pressure dependsonly upon the connected system resistance.

    Technical and constructional features of the machine body

    •  Stators, rotors, side plates and covers are totally made of grey cast iron.

    The covers of model ML175 are made of aluminum alloy so that to increase the efficiency of the cooling of the lubricating oil;

    •  shafts are in carbon steel and rotors are shrinked on the shafts;

    •  the timing gears are helical type with involute profile andmade of alloy steel, with hardened and ground teeth;

    •  sealing of the conveyed gas on the rotor shafts is assured by labyrinth seals and segments;

    •  bearings and timing gears are lubricated by the oil splashed by disks fitted on the rotor shafts.