GVO 207-03-71290 Excavator Radiator Valve Return Oil Check Valve for Excavator PC300-7 PC360-7

Key attributes

Intelligent Flow Diversion:

Under normal return oil pressure, it directs hydraulic oil through the radiator for cooling. If the radiator becomes clogged or return oil resistance increases excessively, the check valve automatically opens to allow hot oil to bypass the radiator and flow directly back to the tank. This mechanism effectively prevents radiator damage caused by excessive pressure buildup.

Maintains System Backpressure:

By controlling the return oil path, it helps maintain the necessary backpressure in the hydraulic system's return circuit. This is critical for the proper operation of sensitive hydraulic components such as pilot controls and proportional valves.

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GVO Company Overview

Guangzhou GVO Precision Hydraulic is a professional manufacturer and exporter of high-quality hydraulic components and electrical parts for excavators. From our headquarters in Guangzhou, China, we serve a diverse international customer base, fostering long-term cooperation with clients across Asia, Africa, Europe, and the Americas.Our product portfolio includes hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and comprehensive electrical components. We stock parts for all major excavator brands and models, ensuring complete specifications and immediate availability for urgent requirements.

Every component is manufactured with precision and inspected under standardized quality control procedures. Our products deliver high accuracy, excellent pressure resistance, superior sealing, and stable performance — effectively preventing power loss, hydraulic leakage, system vibration, and electrical failures.

As a factory-direct supplier, we provide reliable replacement parts with guaranteed compatibility, proven durability, and competitive pricing, offering exceptional value to our international partners.With mature production infrastructure, robust export logistics, and multilingual customer support, we facilitate efficient global trade and seamless cross-border transactions. Through consistent quality and responsive service, we have cultivated enduring, 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.

GVO — Your Partner in Global Parts Supply.