GVO 702-21-57600 Hydraulic Pump Large Pump Proportional Solenoid Valve for Excavator PC550LC-8

GVO 702-21-57600 Hydraulic Pump Large Pump Proportional Solenoid Valve for Excavator PC550LC-8

 Key attributes

Precise Proportional Control
  These valves utilize proportional solenoid technology, which allows for stepless, infinite adjustment of hydraulic flow and pressure based on the input current signal. This provides smooth, accurate control over all machine functions – from fine grading to heavy digging – without the abruptness of on/off switching.

If you need other relief valves, send us the related details please:

1.The pictures

2.The p/n

3.The size

GVO Company Overview  

  Guangzhou GVO Precision Hydraulic is a professional manufacturer and exporter of productivity-enhancing hydraulic components and electrical parts for excavators. From our headquarters in Guangzhou, China, we are committed to delivering products that improve equipment performance, reduce downtime, and enhance overall operational efficiency for the global construction machinery industry.

  We manufacture hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and a full 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 standards. Our products deliver high precision, excellent pressure resistance, superior sealing, and stable performance — effectively preventing power loss, hydraulic leakage, system vibration, and electrical faults.As a direct factory supplier, we offer high-quality replacement parts with guaranteed compatibility, proven durability, and competitive pricing, without intermediary involvement.

  With mature production systems, robust export logistics, and a focus on productivity enhancement, we support bulk orders, custom specifications, and timely global delivery. Through consistent product quality and responsive after-sales support, we have cultivated long-term, trust-based 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 — Enhanced Productivity. Proven Performance. Global Trust.