GVO 723-30-91200 Main Relief Valve Control Valve Suction Relief Valve Safety Valve for Excavator Parts PW140 PW148 PW160 PW180
Excavator main relief valve
,Excavator suction relief valve
,Excavator safety valve with warranty
GVO 723-30-91200 Main Relief Valve Control Valve Suction Relief Valve Safety Valve for Excavator Parts PW140 PW148 PW160 PW180
Key attribute
|
Part name |
Main Relief Valve |
|
Model |
PW140 PW148 PW160 PW180 |
|
Condition |
New |
|
MOQ |
1PC |
|
Packing |
Carton |
| Certificate | CE, ISO |
|
Delivery |
3-15 Days |
|
Shipping port |
Huangpu,Guangzhou |
Product profile
- Critical Overload Protection As the primary safety device in the hydraulic circuit, these relief valves limit maximum system pressure by diverting excess fluid to the return line when the set value is exceeded. This protects the main pump, hydraulic cylinders, and piping from damage under peak loads. A malfunctioning valve can cause erratic hydraulic functions, a noisy pump, or a system that fails to build adequate pressure.
- Precise Pressure Regulation Manufactured to meet stringent Volvoo standards, these valves ensure precise pressure control and prevent damage from over-pressurization-unlike a worn valve that may stick open or closed. The main relief valve also acts as a buffer during system pressure fluctuations, protecting sensitive components.



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GVO Value

Guangzhou GVO Precision Hydraulic Co., Ltd. is a professional manufacturer and exporter of hydraulic components, electrical systems, and engine parts for excavators. Founded in 2017 and headquartered in Guangzhou, China, we have been serving the global construction machinery industry for years.

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 also help customers confirm models, avoid wrong purchases, ship common parts fast, and provide after-sales support.

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 across Asia, Africa, Europe, and the Americas.

GVO — Precision Components. Global Supply. Trusted Partnership.
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