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Functions and properties of hydraulic fluid
Mar 22, 2018

The primary function of a hydraulic fluid is to convey power. In use, however, there are other important functions of hydraulic fluid such as protection of the hydraulic machine components. 

FunctionProperty
Medium for power transfer and control
  • Non compressible (high bulk modulus)

  • Fast air release

  • Low foaming tendency

  • Low volatility

Medium for heat transfer
  • Good thermal capacity and conductivity

Sealing Medium
Lubricant
  • Viscosity for film maintenance

  • Low temperature fluidity

  • Thermal and oxidative stability

  • Hydrolytic stability / water tolerance

  • Cleanliness and filterability

  • Demulsibility

  • Antiwear characteristics

  • Corrosion control

Pump efficiency
  • Proper viscosity to minimize internal leakage

  • High viscosity index

Special function
  • Fire resistance

  • Friction modifications

  • Radiation resistance

Environmental impact
Functioning life
  • Material compatibility

www.lopalautochem.com

March 22, 2018

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    Add:NO.6 Hengtong Avenue, Economic and Technological Development Zone, Qixia District, Nanjing City, Jiangsu Province
    Tel:+86-025-85802178
    Fax:+86-025-85804898
    Mobile:+86-13677379280
    E-mail:caoyuepeng@lopal.cn
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