Choose the main points of the vacuum pneumatic valve and USES

according to the working pressure is low vacuum pneumatic valve, high vacuum pneumatic valves and ultra high vacuum pneumatic valve.
adjustment according to the structure features of pneumatic valve, pneumatic ball valves, pneumatic diaphragm valve, pneumatic valve, flashboard baffle pneumatic valve, Angle valve, pneumatic valve, pneumatic valve tee.
according to the principle of transmission with manual, pneumatic, electric, electromagnetic. General pneumatic is the process of electromagnetic pilot to perform an action, cylinder, also can use the hand control pilot process of pneumatic valve cylinder to perform an action. Dual electric hand, electric operated manually when the power failure is available.
according to the material have stainless steel, carbon steel, aluminum alloy as the main body of pneumatic valve.
according to the dynamic seal material also can be divided into metal sealing and nonmetal sealing pneumatic valves.
shaft seal with O shaped rubber ring general vacuum dynamic seal leakage rate for the - Pa. L/S, vacuum degree is not high, in the process of axial movement can be used in the high vacuum of request is not high under the condition of use; Shaft seal for the metal bellows seal, the leakage rate of - Pa. L/S, is suitable for using ultra high vacuum conditions.
general vacuum pneumatic valve USES:
butterfly pneumatic valve for direct form, the hand, gas, electric drive system, three is decided by the user. Manual adjustment pneumatic valve opening Angle arbitrary adjustable. Intelligent pneumatic and electric butterfly valve opening Angle and arbitrary adjustable.
flashboard pneumatic valve used in high vacuum degree requirements or pipe size demanding occasions. All-pass guide, pneumatic valve leakage rate for - Pa. L/S, two-way sealing. Drive way hand, gas and electric is decided by the user. Pneumatic and electric signal feedback device.
pneumatic diaphragm valve with pneumatic ball valve as straight through, and can be used in place of positive pressure and vacuum coexist. Drive way hand, gas and electric is decided by the user.
baffle pneumatic valve in the vacuum tube Angle and tee. Driving mode for hand electromagnetic, electric, gas, determined by the user. The GDC - J type high vacuum electromagnetic damper pneumatic valve for metal bellows seal, it has a wide range of application, also can be used as pneumatic pneumatic valve; Installation position can be arbitrary, but the top one atmospheric pressure, and a feedback signal output.
vacuum belt pneumatic pneumatic electromagnetic valve and vacuum differential pressure pneumatic valve is specially used to prevent mechanical vacuum pump oil return vacuum pneumatic valve, installed on the mechanical vacuum pump inlet port, and the opening and closing of synchronization with the pump. Generally not used elsewhere, that is not used in the vacuum system for air escape. Use vacuum differential pressure pneumatic valve has the advantage of small power consumption, save energy; DN pneumatic or less body material for aluminum alloy, light weight, small volume, pneumatic valve plate closed fast.