Guangzhou Gangwo Engineering Machinery Parts Department
| Model | PC300 PC350 PC400 PC450 |
| Services | During working hours |
| Delivery Time | 3-7 Days |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| MOQ | 1PC |
| P/N | 702-21-62200 702-21-62900 |
| Supply Ability | 10000 pcs per month |
| Part Name | Hydraulic Pump Large Pump Proportional Solenoid Valve |
| Stock | In stock |
| Packaging Details | Carton |
| Model Number | PC300 PC350 PC400 PC450 |
| Certification | CE,ISO |
| Brand Name | GVO |
| Place of Origin | China |
View Detail Information
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Product Specification
| Model | PC300 PC350 PC400 PC450 | Services | During working hours |
| Delivery Time | 3-7 Days | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| MOQ | 1PC | P/N | 702-21-62200 702-21-62900 |
| Supply Ability | 10000 pcs per month | Part Name | Hydraulic Pump Large Pump Proportional Solenoid Valve |
| Stock | In stock | Packaging Details | Carton |
| Model Number | PC300 PC350 PC400 PC450 | Certification | CE,ISO |
| Brand Name | GVO | Place of Origin | China |
| High Light | hydraulic pump for excavator PC300 ，proportional solenoid valve PC400 ，excavator relief valve with warranty | ||
GVO 702-21-62200 702-21-62900 Hydraulic Pump Large Pump Proportional Solenoid Valve for Excavator PC300 PC350 PC400 PC450
Key attributes
|
Name |
Hydraulic Pump Large Pump Proportional Solenoid Valve |
|
Model |
PC300 PC350 PC400 PC450 |
|
P/N |
702-21-62200 702-21-62900 |
| Package |
Carton |
|
Certificate |
CE, ISO |
|
Delivery |
3-5 Days |
|
Shipping port |
Huangpu |
System Protection & Fuel Efficiency
By matching pump output to engine load and operator demand, the valve prevents unnecessary hydraulic pressure spikes and flow waste. This optimizes fuel efficiency, reduces engine load, and protects the main pump and other hydraulic components from premature wear. It also plays a key role in safety systems such as travel speed shifting and hydraulic lockout – for example, when the operator switches between high and low travel speeds, the valve adjusts pilot pressure to the travel motor's shifting valve, ensuring smooth transitions without jolts or loss of traction.
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 specializing in collaborative partnership solutions for hydraulic and electrical components in the excavator industry. From our headquarters in Guangzhou, China, we work alongside our customers as strategic partners — understanding their needs, anticipating their challenges, and delivering solutions that support their long-term success.
We produce 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 meet diverse customer requirements.
All components are precision-engineered and inspected under strict quality control procedures. Our products deliver high precision, excellent pressure resistance, superior sealing, and stable performance — effectively preventing common issues such as power loss, hydraulic leakage, system vibration, and electrical faults.
As a direct factory supplier, we provide high-quality replacement parts with reliable compatibility, proven durability, and competitive pricing, without intermediary involvement.
With mature production systems, robust export logistics, and a collaborative approach to customer relationships, we support bulk orders, custom specifications, and efficient global delivery. Through consistent quality and dedicated partnership, we have cultivated long-term, trust-based relationships with customers around the world.
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 — Collaborative Partnership. Reliable Solutions. Global Trust.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2012
Total Annual:
7500000-12000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Who we are: We are excavator spare parts manufacturer to do high quality products What we do: Our supply chain covers engine parts, hydraulic parts, relief valves, pilot pumps, gear parts electrical parts, seals, bearings, we serve the domestic market and overseas markets, in the field of excav... Who we are: We are excavator spare parts manufacturer to do high quality products What we do: Our supply chain covers engine parts, hydraulic parts, relief valves, pilot pumps, gear parts electrical parts, seals, bearings, we serve the domestic market and overseas markets, in the field of excav...
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