GVO 0949801 Main Relief Valve for ZX30U-2 ZX40U-3 ZX48U-3 ZX50U-3 ZX52U-3 ZX55UR-3 ZX65USB-3F ZX60USB-3 Excavators

GVO 0949801 Main Relief Valve for ZX30U-2 ZX40U-3 ZX48U-3 ZX50U-3 ZX52U-3 ZX55UR-3 ZX65USB-3F ZX60USB-3 Excavators

 Key attributes

Critical System Overload Protection
  As the primary safety valve, its core function is to precisely limit the maximum working pressure of the hydraulic system. When system pressure exceeds the preset safe limit due to heavy loads or shocks, the valve opens instantly to return high-pressure oil to the tank. This effectively prevents damage to the main pump, control valves, cylinders, and other expensive components caused by overloading.

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GVO Company Overview  

  Guangzhou GVO Precision Hydraulic is a professional manufacturer and exporter specializing in the research, development, and production of precision hydraulic components and electrical systems for excavators. Based in Guangzhou, China, we are committed to providing comprehensive solutions that combine quality, reliability, and efficiency to the global construction machinery industry.We manufacture and supply hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and a full series of electrical components. Our product range covers most mainstream excavator brands and models, with complete specifications and substantial inventory to ensure prompt delivery.

  All components are precision-machined and undergo strict quality inspection at every stage of production. Our products are characterized by high precision, excellent pressure resistance, superior sealing performance, and stable operation — effectively resolving common mechanical issues such as power deficiency, hydraulic leakage, system jitter, and electrical malfunctions.

  As a direct factory supplier, we eliminate intermediaries and offer high-quality replacement parts with reliable compatibility, consistent durability, and cost-effective pricing.With mature production systems, comprehensive export capabilities, and a strong commitment to customer satisfaction, we support bulk orders, customized processing, and reliable global delivery. Through stable product quality and professional after-sales support, we have established long-term, trusting partnerships with clients across the globe.

Operational Capabilities

  We maintain a comprehensive supply chain covering engine, hydraulic, electrical, sealing, bearing, and gear components for all major excavator brands. Our 40,000 m³ warehousing facility ensures extensive stock availability, enabling same-day dispatch and rapid order fulfilment.

GVO — Comprehensive Solutions. Global Reach. Trusted Partnership.