Oil Cooler

Cause of Heat Generation in the Hydraulic Elevator

∙ Pressure loss occurs by internal friction, viscous resistance,

and leakage in the hydraulic pump.

∙ Pressure drops in the control system and pipeline.

∙ Pressure loss in pressure relief and pressure reducer.

∙ Hydraulic oil temperature rises by damaging or loss of the motor.

Temperature Effects on the Elevator

∙ Elevating temperature means increasing viscosity of oil. Viscosity increases then control valve does not work correctly.

∙ Increase of oil temperature affects adversely to the hydraulic motor.

∙ Oil change period is shorten due to lower viscosity of the hydraulic oil.

Reason of Using Oil Cooler

∙ Recommend that installing oil cooler is to protect the equipment and maintain renewal of hydraulic oil and comfortable ride.