| Message: | Francis is from a hydraulic equipment company in Spain, and has been purchasing smoothly for 5 years. Some time ago, he was stumped by a hydraulic cartridge proportional relief valve. The hydraulic cartridge proportional relief valve used in their customized hydraulic power unit was made by a local cartridge valve manufacturer. The equipment commissioning was not smooth, and the hydraulic cartridge proportional relief valve responded slowly and leaked when the system was in a large flow state. The original manufacturer tested the accuracy of the hydraulic cartridge proportional relief valve, and all of them reached the standard. The engineer asked the original manufacturer to optimize the structure of the hydraulic cartridge proportional relief valve, but no result after 1 week. Francis contacted several other hydraulic cartridge proportional relief valve manufacturers, but there was still no solution. Francis was worried. |
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