| After-sales Service: | Online Support |
|---|---|
| Warranty: | 6 Months |
| Type: | Oil Seal |
| Application: | Excavator |
| Certification: | CE |
| Condition: | New |
| Customization: |
|---|
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Excavator Main Relief Valve Control Valve 4289602 For Ex200-2 Ex200-3
| Compatible Models | Ex200-2, EX200-3 |
| Part Number | 4289602 |
| Part Name | Relief Control Valve |
| Application | Excavator |
| Delivery | Express/Air/Sea |
| Item Type | Relief Valve |
| Condition | New Original/OEM High Quality |
| Stock | Yes |
| Operating Voltage | 24V |
| Manufacturer | OEM or Aftermarket |
A relief valve is an important component of a hydraulic system that is designed to protect the system from overpressure. In this article, we will discuss relief valves in detail, including their function, types, applications, and maintenance.
Function of Relief Valves Relief valves are typically installed in hydraulic systems to prevent damage caused by overpressure. When the pressure in a hydraulic system exceeds a predetermined level, the relief valve opens and allows some of the hydraulic fluid to escape. This reduces the pressure in the system to a safe level and prevents damage to the system's components.
Types of Relief Valves There are several types of relief valves available, including direct-acting relief valves, pilot-operated relief valves, and proportional relief valves.
Direct-acting relief valves are the simplest type of relief valve and consist of a spring-loaded poppet that is held closed by a spring. When the pressure in the hydraulic system exceeds the spring force, the poppet opens and allows fluid to escape.
Pilot-operated relief valves are more complex than direct-acting relief valves and use a pilot valve to control the opening and closing of the main valve. The pilot valve is typically controlled by an external signal, such as pressure or flow rate.
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