FIELD: engines and pumps.
SUBSTANCE: invention relates to machine building and can be used in production of wear-resistant submerged centrifugal pumps intended for oil extraction. The wheel rotor incorporates the main disk with blades, coating disk, metal disk arranged between the former and the latter and rigidly connected there with. The main and coating disks are made from composite polymer material, containing, in particular, fluoroorganic substances represented by derivatives of isobutane with fluorinated organic substituents.
EFFECT: wheel rotor longer life, higher pump efficiency, wheel rigidity plus minimum misbalance and high hydro dynamic characteristics.
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