DocumentNo.:KE-1027-00 Sheet:6/29
Ⅱ ValveOperatingDevice
2. WormGearOperator
2.1 Thewormgearoperatorismountedonthevalve.
2.2 Accordingtothearroworletteronthehandwheel,turningthehandwheelclockwisecloses
thevalve,andturningthehandwheelcounterclockwiseopensthevalve.
2.3 Handwheeloperatingtorquedependsonthesizeandopeningposition.
2.4 Wormgearoperatoristotransmitalargetorquetovalvestems,convertingatorquefrom
driveshaftbymeansofreductiongearingunitusingwormgears.
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