GVO 702-21-62200 7022162200 702-21-62600 7022162600 Proportional Solenoid Valve

Product Specification

GVO 702-21-62200 7022162200 702-21-62600 7022162600 Proportional Solenoid Valve for Excavator PC200-7 PC200-8 PC210-10

 Key attributes

Precision Proportional Control
  These valves operate on the principle of proportional electromagnetic control, acting as a bridge between the excavator's ECU and the main hydraulic system. They receive variable current signals from the ECU, which adjust the magnetic force on the internal spool – fine-tuning the opening of the pilot oil circuit and controlling the pilot pressure sent to the main pump regulator. Higher pressure increases pump displacement for faster boom, arm, and bucket movements, while lower pressure reduces flow for delicate operations or idle conditions. The internal spool and sleeve are precision-machined to micron-level tolerances, ensuring linear and responsive pressure regulation that translates to smooth, predictable machine operation – critical for both heavy digging and fine grading tasks.

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 with a proven track record in the research, development, and production of high-quality hydraulic components and electrical parts for excavators. Based in Guangzhou, China, we have built our reputation on years of reliable service, consistent quality, and long-standing customer relationships across the global construction machinery industry.

  We manufacture and supply hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and a comprehensive range of electrical components. Our product portfolio covers most mainstream excavator brands and models, with complete specifications and extensive inventory to ensure prompt and accurate order fulfilment.

  All components are precision-machined and subjected to rigorous quality inspections throughout the production process. Our products are characterized by high precision, excellent pressure resistance, superior sealing performance, and stable operation — 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 guaranteed compatibility, consistent durability, and cost-effective pricing.

  With mature production systems, comprehensive export capabilities, and a proven track record of customer satisfaction, we support bulk orders, customized processing, and reliable global delivery. Through stable product quality and responsive after-sales support, we have established enduring, trusted partnerships 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 — Proven Track Record. Trusted Performance. Global Partnership.