GVO 121-1493 309-5868 232-3661 Check Valve Rotary Priority Valve Boom Anti-Drift Valve for E320B 320C 320D 324D 329D 330D 336D

GVO 121-1493 309-5868 232-3661 Check Valve Rotary Priority Valve Boom Anti-Drift Valve for E320B 320C 320D 324D 329D 330D 336D

 Key attribute

Product profile

• Precise Pressure Protection: As a safety valve, it automatically opens to relieve pressure when the swing system pressure exceeds the set limit. This prevents damage to the swing motor, hydraulic pump, and lines caused by overload, helping you avoid costly repairs.
• Smooth Swing Operation: By stabilizing swing circuit pressure, it effectively absorbs shock during start and stop, reduces machine shaking, and makes operation smoother and more precise for better operator comfort.
• Reliable Anti-Swing Control: The valve features an anti-swing function that helps suppress inertial sway when the swing stops, allowing the machine to position quickly and steadily for improved working efficiency.

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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 build long-term partnerships with customers worldwide.

  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, Kobelco, Hitachi, Hyundai, Doosan, Sany, XCMG, JCB, and Case. 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, ship common parts fast, and provide after-sales support.

  Our customers include 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.

GVO — Precision Components. Global Supply. Trusted Partnership.