GDCJ series electromagnetic high vacuum flapper valve is used to open or close the valve by electromagnetic force and spring return force. It is suitable for opening or blocking air flow in vacuum system. When the valve is closed, the upper side of the sealing surface of the valve plate is allowed to bear high pressure, and the lower side is vacuum. In this state, the valve plate can be opened normally after the power supply of the electrical control box is turned on. The applicable working medium is air, non-corrosive gas and gas without particle dust.

GDQ-J series pneumatic high-vacuum flapper valve uses compressed air as power, changes the direction of the air path through the electromagnetic reversing valve, pushes the cylinder piston to move up and down, drives the valve stem to move up and down, and makes the valve plate open or close, so as to achieve The purpose of switching on or off flow in a vacuum system. Pneumatic high vacuum baffle valve can be divided into GDQ-J type rubber seal and GDQ-J(b) type bellows seal according to the shaft seal structure. GDQ-J type is the angle through type,

GDQ-J-A series normally closed pneumatic high vacuum flapper valve relies on compressed air as the opening and closing power of the valve plate through the electromagnetic reversing valve. When the power supply or compressed air is lost, the valve with a diameter below DN80 will automatically close by spring force. Valves, the valves above DN100 use the one-way valve to quickly close the original air source pressure of the cylinder through the solenoid valve group to automatically close the valve. So as to achieve the function of quickly cutting off the air flow in the vacuum system. The shaft seal structure of pneumatic high vacuum baffle valve can be divided into GDQ-J-A type rubber seal and GDQ-J-A(b) type bellows seal. GDQ-J type is the angle through type, and GDQ-S type is the three-way type with pre-extraction. The applicable working medium is air and non-corrosive gas.

GDQ-J-A (b) series normally closed pneumatic high vacuum baffle valves are sealed with bellows. The valve is powered by compressed air, changes the direction of the gas path through the electromagnetic reversing valve, pushes the cylinder piston to move up and down, drives the valve stem to move up and down, and makes the valve plate open or close, so as to achieve the purpose of connecting or cutting off the air flow in the vacuum system. The valve has a series of advantages such as stable operation, reliable sealing and long service life, and is one of the preferred valves for automation of vacuum equipment. The applicable medium of the valve is air and non-corrosive gas.