Product specificationDiameter rangeDN6~DN250Range of useViton seal：1×10-5Pa~1.2×103Bellows seal：1×10-8Pa~1.2×103Body and seat leakage rate≤5.3×10-7Pa.L.S-1Body baking temperature≤150℃Installation locationManual: AnyPneumatic (<DN160): AnyPneumatic (≥DN160): seal towards vacuumElectric (bellows seal): AnyElectric (fluororubber seal): seal towards vacuumPower supplyAC 220V/380V 50Hz 6WOr DC 24V 3WAir source0.4~0.8MpaOpening and closing timePneumatic（DN6~DN50）：≤1SPneumatic（DN63~DN250）：≤3SElectric：≤1SValve opening and closing position indicationWith open position indication DetailsThe high vacuum flapper valve is used to switch the vacuum line on and off. The principle of operation is to close and open the valve stem by moving it up and down. High vacuum flapper valves are mainly pneumatic, electric, manual, and other drive methods, the structure is mainly right-angle, straight-through, oblique angle. Such valves have the advantages of simple structure, reliable sealing and convenient disassembly and assembly.Anti-protruding seal structure design can prevent the seal ring from falling off; Compression seal groove structure, introduce the processing and installation process; Special bellows seal, reliable sealing, cost control; Integrated cylinder structure, reduce cost and weight; Special electromagnetic Valve installation, beautiful and economical; micro-switch sensing, PLC control; overall aluminum material, reduce weight, control costs; no welding structure, reduce leakage, improve vacuum Vacuum flapper valve selection sample download
