GVO 31n1-10150 Hydraulic Pressure Control Valve Secondary Relief Valve Safety Valve Overload Relief Valve for Excavator DH55
Hydraulic Pressure Control Valve for Excavator
,Secondary Relief Valve with Warranty
,Excavator Safety Valve DH55 Compatible
GVO 31n1-10150 Hydraulic Pressure Control Valve Secondary Relief Valve Safety Valve Overload Relief Valve for Excavator DH55
Key attribute
|
Part name |
Main Relief Valve |
|
Model |
DH55 |
|
P/N |
31n1-10150 |
|
MOQ |
1PC |
|
Packing |
Carton |
| Certificate | CE, ISO |
|
Delivery |
3-15 Days |
|
Shipping port |
Huangpu,Guangzhou |
Product profile
- Direct Fit: Designed for Doosan DH55 and related models. Installs without modification, getting your machine back to work fast.
- Critical Pressure Protection: Acts as a safety valve, releasing excess pressure before it can damage the pump, cylinders, swing motor, or hydraulic lines. Helps you avoid costly repairs and downtime.
- Smooth, Stable Operation: Keeps hydraulic pressure steady under changing loads, so digging, lifting, and swinging feel consistent and predictable.




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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 reliable parts and reliable service.
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 from raw material to finished product. Every part is inspected and performance-tested before shipment. We help customers confirm models, avoid wrong purchases, and ship common parts fast.

We stay available after delivery. If you have any problem after receiving the goods, we help you solve it. No matter the order size, we treat everyone the same. Our products are exported to more than 30 countries and regions.

Precision Components. Global Supply. Trusted Partnership.
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