GVO 4328781 Rotary Hydraulic Pump Valve Main Control Relief Valve Pressure Relief Valve Safety Valve for EX200-3 Excavator

Key attribute

Product profile

• Precisely manages hydraulic fluid pressure and flow direction, ensuring optimal performance in heavy-duty operations.
• As the main relief valve, it protects the main pump, control valves, cylinders, and hydraulic lines from damage caused by pressure spikes or overloads.
• Ensures safe, reliable machine operation.
• Manufactured from high-strength steel/aluminum alloy with corrosion-resistant properties.
• Withstands harsh construction environments and extends service life.
• Threaded connections optimized for rapid assembly, reducing maintenance and replacement time.

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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 exist to help customers reduce downtime and keep their machines working.

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 brands such as Komatsu, Catt, Kobelco, Hitachi, VoOlvo, Hyundai, Doosan, Sany, XCMG, JCB, and Case. With over 1,000 part numbers in stock, we respond quickly to common and urgent needs.

As a factory-direct supplier, we control quality from raw material to finished product. Every part is inspected and performance-tested before shipment. We also help customers confirm models to avoid wrong purchases, ship common parts fast, and provide after-sales support when problems arise.

Whether you are a distributor, a construction team, a repair shop, or an individual machine owner — 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.

With a philosophy of “Quality First, Customer Foremost,” we hope to become your trusted long-term parts partner.