GVO 702-21-57500 702-21-57600 702-21-55700 Proportional Solenoid Valve for Excavator PC360-7 PC400-7 PC400LC-7 PC450-7 PC450LC-7

GVO 702-21-57500 702-21-57600 702-21-55700 Proportional Solenoid Valve for Excavator PC360-7 PC400-7 PC400LC-7 PC450-7 PC450LC-7

 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 comprehensive hydraulic and electrical solutions for the excavator industry. Based in Guangzhou, China, we are dedicated to delivering total value to our customers — through reliable product quality, responsive service, competitive pricing, and global supply capability.We specialize in hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and a full range of electrical components. Our product portfolio covers all major excavator brands and models, with complete specifications and extensive inventory for rapid response.

  All components are precision-machined and inspected under strict quality standards. Our products are known for high precision, excellent pressure resistance, superior sealing, and stable performance — effectively resolving common mechanical failures such as power deficiency, hydraulic leakage, system jitter, and electrical malfunctions.

  As a direct factory supplier, we eliminate intermediaries and deliver high-quality replacement parts with reliable compatibility, long-lasting durability, and competitive pricing — ensuring exceptional total value for our customers.With mature production systems, comprehensive export capabilities, and a commitment to total value, we support bulk orders, custom specifications, and timely global delivery. Through consistent quality and dedicated after-sales support, we have earned the trust and loyalty of customers 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.

Our team

GVO — Total Value. Total Reliability. Total Commitment.