Gear Pilot Pump AP2D28 Pre Charging Pump
The function of the pilot pump -Function: The pilot pump provides low-pressure control oil (usually 3-5 MPa) to the hydraulic system, which is used to operate pilot valves (such as handles or foot valves) and control the action of the main hydraulic valve. -Importance: If the pilot pump fails, it may result in weak operation, delayed action, or complete inability to control.
Characteristics of Gear Pilot Pump
-Structure: The gear pump has a simple structure, low cost, and strong pollution resistance, making it suitable for harsh working conditions of excavators.
-Common model: AP2D28 may refer to a gear pump with a displacement of 28ml/r (specific brands need to be confirmed, such as Kawasaki, Rexroth, etc.).
-Parameter example:
-Displacement: 28 cm ³/rev
-Working pressure: 2-4 MPa (pilot pressure)
-Speed range: 1500-3000 rpm
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