balance piston

  • Balance Piston For Screw Compressor

    1. The role of the balance piston is to balance the axial force of the rotor: 2. On both sides of the rotor of the screw compressor, there is an axial force directed to the intake direction due to the differential pressure between the intake and exhaust. 3. The balance piston is under the action of oil pressure, giving the rotor an opposite axial force to achieve equilibrium. 4. The balance piston generally bears 70% of the axial force, and the rest is borne by the positioning bearing. The balance piston is generally placed on the male rotor because the axial force of the male rotor is greater than that of the female rotor.

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