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Model No.: EC220D
Status: New
Applicable Industry: Building Material Shops, Construction Works, Energy &Amp; Mining, Other
Out-of-warranty Service: Video Technical Support, Spare Parts
Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets): None
Showroom Location (in Which Countries Are There Sample Rooms Overseas): None
Video Factory Inspection: Provided
Mechanical Test Report: Provided
Marketing Type: New Product 2020
Warranty Period: 1 Year
Service System: Online Support
Transportation: Ocean,Land,Air
Incoterm: FOB,CIF,EXW,FCA,CPT
Volvo EC220D Main Control Valve VOE14615304 VOE14615305
The EC220D main Control Valve is typically found in Volvo's EC220D excavators. The main control valve plays a crucial role in directing hydraulic fluid to the various actuators (cylinders and motors) that operate the boom, arm, bucket, and other functions of the excavator. Here’s a detailed explanation of its working principle:
Hydraulic Fluid Supply: The Hydraulic Pump driven by the engine supplies high-pressure hydraulic fluid to the main control valve. This fluid is essential for powering the hydraulic actuators.
Directional Control: The main control valve is equipped with multiple spools (sliding valves) that control the direction of the hydraulic fluid flow. These spools are connected to the operator's controls (joysticks or levers) in the cab.
Spool Movement: When the operator moves a control lever, the corresponding spool in the main control valve shifts. The movement of the spool opens or closes various ports within the valve.
Fluid Flow to Actuators: Depending on the spool position, the hydraulic fluid is directed to specific actuators. For example:
Flow Control and Regulation: The main control valve also incorporates flow control mechanisms to regulate the amount of hydraulic fluid flowing to each actuator. This ensures smooth and precise operation. The valve might use pressure compensators or flow dividers to achieve this.
Pressure Relief: To protect the hydraulic system from overpressure, the main control valve includes pressure relief valves. These valves release excess pressure back to the reservoir if it exceeds a predetermined limit.
Return to Tank: After the hydraulic fluid has done its work, it returns to the hydraulic reservoir via the return line. The main control valve channels the spent fluid back efficiently.
Understanding the main control valve's working principle is essential for diagnosing issues, performing maintenance, and ensuring the excavator operates efficiently.
Product Categories : Control Valve
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.