GVO 700-86-53000 Pressure Safety Main Relief Valve for Excavator PC150

GVO 700-86-53000 Pressure Safety Main Relief Valve for Excavator PC150

 Key attributes

Critical System Overload Protection

  As the main relief valve, it establishes the maximum pressure limit for the entire hydraulic system. When system pressure exceeds this preset threshold due to heavy loads or sudden shocks, the valve instantly opens to divert excess oil back to the tank. This prevents catastrophic damage to the main pump, control valves, cylinders, and other expensive components.

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1.The pictures

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GVO Company Overview  

  Guangzhou GVO Precision Hydraulic is a professional manufacturer and exporter of efficient and durable hydraulic components and electrical systems for excavators. From our facility in Guangzhou, China, we are committed to delivering products that enhance equipment efficiency and provide long-lasting durability for the global construction machinery industry.

  We specialize in hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and a comprehensive range of electrical components. Our product lineup covers most mainstream excavator brands and models, with complete specifications and ample stock to meet urgent and scheduled requirements.

  All components are precision-engineered and inspected under strict quality control standards. Our products feature high precision, excellent pressure resistance, superior sealing, and stable operation — effectively preventing common issues such as power loss, hydraulic leakage, system jitter, and electrical faults.

  As a direct factory supplier, we offer high-quality replacement parts with guaranteed compatibility, proven durability, and competitive pricing, without intermediary markups.With mature production systems, robust export logistics, and a focus on efficiency and durability, we support bulk orders, custom specifications, and reliable global delivery. Through consistent product quality and responsive after-sales support, we have cultivated long-term, trusting relationships with customers worldwide.

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.

Our team

GVO — Efficiency Engineered. Durability Built. Trust Delivered.