Operating principle
Inside the valve body, there are two integrated pressure relief cartridges, each working in opposite directions to provide bidirectional overpressure protection. When the pressure in one line exceeds the preset limit, the corresponding cartridge opens, allowing oil to flow back to the tank or return line, effectively reducing the system pressure.
Each cartridge operates independently, ensuring that the system stays within the safe operating range in both forward and reverse directions. The spring-loaded poppet closes automatically when pressure normalizes, ensuring smooth and safe system operation.