Connections And Leakage Detection Of Actuators; Front Of Globe Valve Operator; Rear Of Globe Valve Operator - GEM 553 Installation, Operating And Maintenance Instruction

9.3

Connections and leakage detection of actuators

9.3.1

Front of globe valve operator

Valve spindle
Manual operator
Control medium
connector 4
(only NO and DA
control function)
Control medium
connector 2
(NC and DA control
function)
Pneumatic stainless steel actuator
Control medium
connector 4
(NO and DA con-
trol function)
Control medium
connector 2
(NC and DA con-
trol function)
Pneumatic plastic actuator
9.3.2
(only NC control function)
Vent hole
(NO control
function)
Vent hole
(NC control
function)
45 / 68

Rear of globe valve operator

Valve spindle
Manual operator
Vent hole
Leak detection hole
Pneumatic stainless steel actuator
Leak detection hole
Pneumatic plastic actuator
553