GVO 420-00259 Hydraulic Relief Valve Travel Valve Control Valve for DH300-7 Excavator

GVO 420-00259 Hydraulic Relief Valve Travel Valve Control Valve for DH300-7 Excavator

 Key attributes

This valve plays a critical role in the hydraulic system by limiting pressure and preventing overload, acting as a "safety valve" to protect the entire system.

Pressure Setting: Establishes a maximum operating pressure limit for the system.

Overload Protection: When system pressure exceeds the preset value due to heavy loads or shocks, the valve opens rapidly to divert excess hydraulic oil back to the tank. This effectively prevents high pressure from damaging expensive components such as the hydraulic pump, control valves, cylinders, and lines.

Pressure Balancing: Helps balance pressure within the hydraulic system, ensuring stable and reliable operation.

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GVO Value

  Parts supply is about more than inventory — it's about solving problems. At GVO, we see every inquiry as an opportunity to find a solution. Whether you're dealing with an urgent breakdown, a hard-to-find component, or a complex compatibility question, our team is equipped to help. We cross-reference, source, verify, and deliver — all with the goal of getting your machine back to work. We don't just fill orders. We solve problems.

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 quick dispatch and rapid order fulfilment.

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