哈維·MVE 6b溢流閥會在出口和進口之間產生穩定的壓差，從而導致系統 
Harvey relief valve MVE series can also become a safety valve. The function of the safety valve is to start or close automatically when the pressure system is too high at work. It is often used in installed and closed system equipment and in pipelines to protect the safety of the system.
When the pressure in the equipment or pipeline where the safety valve is installed is greater than the preset pressure of the safety valve, it will automatically start pressure relief to ensure that the medium pressure in the facilities and pipelines is kept below the preset pressure, thus safeguarding the normal operation of the facilities and pipelines and preventing accidents;