Vacuum Flapper Valve
The high vacuum flapper valve is used to connect or cut off the vacuum pipeline. Its working principle is to close and open through the up and down movement of the valve rod. The high vacuum flapper valve mainly has pneumatic, electric, manual and other driving modes, and its structure mainly includes right angle type, straight through type and oblique angle type. This kind of valve has the advantages of simple structure, reliable sealing, convenient disassembly, etc.
The design of the sealing structure to prevent the sealing ring from falling off; the structure of the compression type sealing groove, which introduces the processing and installation process; the special bellows seal, which is reliable in sealing and controllable in cost; the integral cylinder structure, which reduces the cost and weight; the special solenoid valve installation, which is beautiful and economical; the micro switch induction, which realizes PLC control; the overall aluminum material, which reduces the weight and control cost; No welding structure, reduce leakage point and improve vacuum degree
Diameter range dn6 ~ DN250
Scope of use: fluororubber seal: 1 × 10-5pa ~ 1.2 × 103
Bellows seal: 1 × 10-8pa ~ 1.2 × 103
Leakage rate of valve body and valve seat ≤ 5.3 × 10-7pa. L.s-1
Baking temperature of valve body ≤ 150 ℃
Installation position Manual: any
Pneumatic (＜ dn160): any
Pneumatic (≥ dn160): seal towards vacuum
Electric (bellows seal): any
Electric (fluororubber seal): seal towards vacuum
Power Supply
AC 220V / 380V 50Hz 6W
Or DC 24V 3W
Gas source: 0.4 ~ 0.8MPa
Opening and closing time
Pneumatic (dn6 ~ DN50): ≤ 1s
Pneumatic (DN63 ~ DN250): ≤ 3S
Electric: ≤ 1s
Valve opening and closing position indication with opening position indication
