| Manual operation - 
      HA K3.4 stem K3.10 flange K3.11 cylinder K3.12 piston K3.19 locking nut K3.20 u-cup seal K3.27 DU-bushing K3.35 spring K3.49 sealing ring K3.50 screw K3.51 holding device K3.52 hexagon nut K3.53 control tube K3.56 handwheel  | 
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| In rest-position open - 
      NO K3.4 stem K3.10 flange K3.11 cylinder K3.12 piston K3.19 locking nut K3.20 u-cup seal K3.22 o-ring K3.27 DU-bushing K3.35 spring K3.48 screw joint K3.49 screw joint  | 
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