DN10 Travel Motor Safety Valve is mainly used to control the flow and pressure of the travel motor in the hydraulic system to ensure the stable operation of the system. When the flow in the hydraulic system exceeds the set value, the relief valve will automatically adjust the flow to keep it within the set range to avoid damage to the travel motor due to overload.
DN10 Travel Motor Safety Valve
JRD10-05
Function Of Travel Motor Safety Valve：
Overload protection: When the hydraulic system pressure rises abnormally due to a sudden load change (such as jamming or impact) on the travel motor, the safety valve automatically opens to release the pressure to avoid damage to the motor, pipeline or pump.
Pressure limit: Set the maximum working pressure of the system to prevent overpressure in the system.
Operating Principle：
Normal working condition:
Hydraulic oil drives the travel mechanism through the motor, the system pressure is lower than the safety valve setting value, and the valve core is closed.
Overpressure working condition:
When the pressure exceeds the setting value, the oil overcomes the spring force to push the valve core open, and the high-pressure oil directly returns to the oil tank (or low-pressure circuit), reducing the system pressure.
Reset:
After the pressure drops, the spring pushes the valve core to reset, and the system resumes normal operation.
FEATURES：
The valve core and valve sleeve are hard to handle and durable.
Fast response to pressure change.
Industrial conventional valve hole.
SPECIFICATIONS：
Max.Working Pressure:350bar（5075psi）
Flow:See performance curve.
Internal leakage:Under the opening pressure of 75%, the leakage is ≤30mL/min.
Opening Pressure Definition:Pressure measurement when the flow reaches 2.5% of the nominal flow.
Clossing Pressure:90% of opening pressure
Filtering Accuracy: 25 μ m.
Primary Opening Pressure: 50%-70% opening pressure.
Primary Pressure Relief Time: 0.2-0.4S
Service Temperature:-40℃~ 120℃(NBR),-26℃~ 204℃(FKM)
Medium: Mineral oil with viscosity of 7.4 ~ 420 CST (50-2000) ssu or synthetic oil with lubricating function.
Standard Pressure Range: 200 ~ 350 bar (2900 ~ 5075 psi)
CHARACTERISTIC：
DIMENSIONS：
Application Areas：
Excavator
Function: The Travel Motor Safety Valve can protect the travel motor from pressure shock caused by sudden load (such as track jam) in complex terrain (such as rocks and muddy roads).
Bulldozer/Loader
Scenario: During bulldozing operations or heavy-load transportation, the Travel Motor Safety Valve can prevent the hydraulic system from being damaged by overload, causing damage to the motor or pump.
Port machinery
Application: The hydraulic system of container stackers, reach stackers and other equipment. The Travel Motor Valve can prevent pressure peaks caused by frequent starts and stops and heavy loads.
Tunnel boring machine (TBM)
Requirement: When operating in a narrow space, the safety valve must have anti-pollution capabilities (NAS 1638 oil cleanliness below level 6).
