SIRCA PNEUMATIC ROTARY ACTUATORS  
  CENTORK QUARTER TURN PNEUMATIC ACTUATORS  
  CENTORK QUARTER TURN PNEUMATIC ACTUATORS.DOUBLE ACTING  
  CENTORK QUARTER TURN PNEUMATIC ACTUATORS.SINGLE ACTING  
  CENTORK LINEAR PNEUMATIC ACTUATORS  
  CENTORK ON/OFF LINEAR PNEUMATIC ACTUATORS  
  CENTORK MODULATING LINEAR PNEUMATIC ACTUATORS,WITH EXTERNAL SPRING  
  CENTORK PROPORTIONAL LINEAR PNEUMATIC ACTUATORS,WITH CHARACTERIZABLE CAM  
  LINEAR AND QUARTER TURN ACTUATORS SPECIAL SOLUTIONS  
 
CENTORK MODULATING LINEAR PNEUMATIC ACTUATORS,WITH EXTERNAL SPRING

They incorporate a precision pneumatic positioner PR-120 Series with external spring.
The linear positioner valve, incorporated to the cylinder by means of a sub-plate, converts the linear pneumatic actuators into flexible units.
The feedback spring and its assembly accessories are adapted to the actuator length and characteristics to which they are incorporated. The design of the actuator incorporates all the specified functions (cylinder, mountings, control and security systems, detectors, etc.) so that you can get, defined and integrated, the suitable actuator to you application from CENTORK.

TECHNICAL DATA
 PNEUMATIC CONTROL
ELECTRIC CONTORL
Available diameters: 50 to 320 mm
YES
YES
Available strokes: 80 to 1500 mm
YES
YES
Max. working pressure 10 bar
YES
YES
Magnetic piston (optional)
YES
YES
Cushioning at the ends
YES
YES
Bulit-up in amodized aluminium and steel
YES
YES
Other materials unde request
YES
YES
Standard electric protection degree
-
IP-54
Service temperature -10 ℃ to 70℃
YES
YES


THE POSITIONER VALVE CAN BE:
PR-120
PR-120R
PR-121
PR-121 R
Function
Direct
0% control signal, piston rod inside
Reverse
0% control signal, piston rod inside
Direct
0% control signal, piston rod inside
Reverse
0% control signal, piston rod inside
Control signal
pueum.:0,2-1 bar, 3-15 psi
pueum.:0,2-1 bar, 3-15 psi
elect.: 4-20 mA or 0-10 V
elect.: 4-20 mA or 0-10 V
please check corresponding techmical sheets.

Mounting