GQC-5 electromagnetic high vacuum gas charging valve is operated by a solenoid valve to do gas-charging for vacuum system. Have simple structure, stable operation, reliable sealing and coils temperature low power work long hours and so on.

GYC-JQ electromagnetic high vacuum differential pressure valve is a vacuum gas charging valve which can prevent the oil in the mechanical pump returning into the vacuum system. Usually installed at the pump air inlet, thus can be open or closed simultaneously with the pump.

DDC-JQ electromagnetic vacuum gas charging valve is a vacuum globe type valve which can prevent the oil in the mechanical pump returning into the vacuum system. Usually installed at the pump air inlet, thus can be open or closed simultaneously with the pump.