
Oil circuit pressure stabilization / relief: Installed on the high-pressure fuel rail, main oil passage of the engine, and return oil pipeline, it stabilizes the oil pressure of the pipeline. If the oil pressure exceeds the limit, it automatically relieves the pressure to protect the oil pump and fuel injectors;
One-way check valve: Locks the return of fuel / oil from the pipeline during shutdown to prevent difficulty in ignition and oil blockage during cold start.
Main material: Forged aluminum alloy valve body + stainless steel spring + fluororubber oil-resistant sealing valve core (suitable for diesel, high-pressure engine oil, and high-temperature exhaust gas);
Operating environment: Maximum oil pressure 1600 bar (for fuel models), oil temperature -40℃ to 150℃;
Structural form: Integrated valve assembly (non-disassembleable for maintenance, faults can be directly replaced as a whole), inlet and outlet oil ports are tapered threads / quick connectors


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