The pneumatic actuator of GIQ-AB series pneumatic high vacuum butterfly valve is powered by compressed air. The direction of the air path is changed by the electromagnetic reversing valve, the mechanical transmission of the piston rack and gear is driven, and the angular stroke output torque is used to drive the butterfly valve to open and close, so as to achieve the purpose of connecting or cutting off the air flow in the vacuum pipeline. The valve plate of the valve adopts a clamping structure, which clamps the sealing ring of the valve plate, and has the function of fine-tuning the main seal. It is a new type of pneumatic high-vacuum butterfly valve controlled by a pneumatic actuator, which is divided into double-acting and single-acting (spring return) cylinders. Feedback signal device and electric valve positioner are optional. The applicable working medium is air and non-corrosive gas.

DDC-JQ series electromagnetic vacuum filling valve is a special valve installed on the mechanical vacuum pump. The valve and the pump are connected to the same power source, and the opening and stopping of the pump directly control the opening and closing of the valve. When the pump stops working or the power supply is interrupted suddenly, the valve can automatically close the vacuum system and fill the air into the pump cavity through the pump inlet to avoid the backflow of pump oil from polluting the vacuum system. The applicable working medium is air and non-corrosive gas.

DDC-JQ-B series electromagnetic vacuum filling valve is a special valve installed on the mechanical vacuum pump. The valve and the pump are connected to the same power source, and the opening and stopping of the pump directly control the opening and closing of the valve. When the pump stops working or the power supply is interrupted suddenly, the valve can automatically close the vacuum system and fill the air into the pump cavity through the pump inlet to avoid the backflow of pump oil from polluting the vacuum system. The applicable working medium is air and non-corrosive gas.

GQC-1.5, GQC-5 series electromagnetic high vacuum inflatable valve is driven by electromagnetic force. When the power is turned on, the valve is closed to isolate the vacuum system from the atmosphere. When the power is cut off, the valve is in the open state, and the atmosphere The vacuum system is introduced from the outside. GQC-4A series electromagnetic high vacuum inflation valve has two functions of power-on and power-off. There is an air filter inside the valve, which can be used to inflate the vacuum system. The applicable medium of the valve is air and non-corrosive gas.