GVO 25/221873 25/220180 25221873 25220180 Main Relief Valve OverLoad Relief Valve for JS8040ZTS 8045ZTS 8065RTS 8052 8060 8056
Excavator Main Relief Valve
,Overload Relief Valve JS8040ZTS
,Relief Valve 8045ZTS 8065RTS
GVO 25/221873 25/220180 25221873 25220180 Main Relief Valve OverLoad Relief Valve for JS8040ZTS 8045ZTS 8065RTS 8052 8060 8056
Key attribute
|
Part name |
Main Relief Valve |
|
Model |
JS8040ZTS 8045ZTS 8065RTS 8052 8060 8056 |
|
P/N |
25/221873 25/220180 25221873 25220180 |
|
MOQ |
1PC |
|
Packing |
Carton |
| Certificate | CE, ISO |
|
Delivery |
3-15 Days |
|
Shipping port |
Huangpu,Guangzhou |
Product profile
- Critical Pressure Protection: The valve releases pressure when it gets too high, preventing damage to the pump, cylinders, travel motor, and hydraulic lines. If a relief valve is not provided, high hydraulic pressure can damage hydraulic cylinders, piping, and other components. This valve relieves excess pressure in time to protect the machine and equipment.
- Smooth and Stable Operation: By balancing the hydraulic flow entering and leaving the hydraulic cylinder, it helps control the balance of lifting and telescopic movement, making machine operation more stable and responsive. It keeps system pressure steady under different loads and working conditions.




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We are a professional manufacturer and exporter of hydraulic components, electrical systems, and engine parts for excavators. Founded in 2017 and headquartered in Guangzhou, China, we focus on the construction machinery industry.

We supply hydraulic pumps, gear pumps, relief valves, throttle motors, sensors, solenoid valves, regulators, wiring harnesses, and engine parts. Our products are compatible with major excavator brands. Over 1,000 part numbers are kept in stock.

As a factory-direct supplier, we control quality and cost. Every part is inspected and performance-tested before shipment. We handle export documents and support air, sea, and express shipping.

We serve distributors, construction teams, repair shops, and individual machine owners. No matter the order size, we treat everyone the same. Our products are exported to more than 30 countries and regions.
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