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The Oil Overflow Method of Pressure Relief Valve
2025-11-26
The Oil Overflow Method of Pressure Relief Valve
Hi everyone! This video walks through the working principle of our oil pressure relief valve—an essential component for hydraulic systems.
It serves two core functions:
- Pressure Relief: Sets the system’s max pressure. When pressure exceeds the preset value, the valve opens to divert excess oil back to the tank, protecting system components from overpressure damage.
- Oil Make-up: Features a built-in Check Valve that refills the system with oil when flow is insufficient or negative pressure occurs, preventing system damage.
Additionally, it stabilizes system pressure and regulates pump oil pressure, ensuring safe, stable, and reliable operation of your hydraulic setup.
The video showcases the assembly of our M181.5 and M241.5 models—ideal for ground-based hydraulic systems.