DocumentNo.:KE-4025-06 14/50
11.ManualOperation
11.1TypeB(DoubleActionType)
TypeB-0toB-4actuatorscanbemanuallyopenedorclosedbyturninganoperatingdevicesuchasaspanner
wrenchorleverhandleproperlyfittedtothetopoftheshaft(Fig.14).Turntheshaftclockwisetoclosethe
valveandcounterclockwisetoopenthevalve.
BeforeenergizingTypeBactuators,makesuretoremovethespannerwrenchorlever
handle used for manual operation. Starting the operation without removing such a
manualoperatingdeviceisextremelydangerous
● Beforeoperating a Type B actuator manually,open the pressure equalizing valve to
dischargetheresidualairfromtheactuatorhousingtotheatmosphere.Residualairwill
disturbthemanualoperationoftheactuator.
● EnsuretosecurelyfittheoperatingdevicetothetopoftheshaftofTypeBactuator
formanualoperation.
Manualoperationwitha spanner wrench or a lever handle is not availablefor Type B-5 to B-7 actuators.
Pleaseorderanactuatorwithmanualoperationunitifyouneedmanualoperationfortheseactuators.
Topoftheshaft
Fig.14
Actuator
Manualoperationunit
Valve