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 QUARTER TURN PNEUMATIC ACTUATORS.SINGLE ACTING

The most compact solution to achieve high torques by pneumatic means. The experienced connecting rod mechanism of the “scotch-yoke” type guarantees a reliable performance. The built-in spring, of the fight dimension, guarantees the actuator prearranged security position. The CENTORK quarter turn single acting pneumatic actuators, offer the following variants :

• ON/OFF Actuator: with different types of solenoid valves to be mounted on them(Namur, ISO, single or double coil, single or double valve)
• Modulating Actuator: with different types of positioners (pneumatic, electropneumatic. Digital)
• Handwheel optional. Hydraulic hand pump optional.
• Usual accessories: limit swichboxes, Filter and/or regulator unit position transmitter.
• Security position, ESD position pneumatic circuit available. Security air tank available.
• Partial stroking testing device (optional).


TECHNICAL DATA
ON/OFF, SINGLE ACTING
PROPORTIONAL, SINGLE ACTING
Torque range at 6,3 bar
800,1400,2700, 4300, 7000, 137,000
YES
Max. working pressure 10 bar
YES
YES
Control signal
pneum.:3-10 bar elect.: 24,48V / 110, 220V 50Hz
pneum.:0,2-1 bar; 3-15 psi elect.: 4-20 mA; 0-10V
Mechanical end-stops
YES
YES
Output coupling to valve according to ISO
YES
YES
Counter clockwise as standard
YES
YES
Service temperature -10 ℃ to 70℃
YES
YES
Emergemcy manual handwheel (option)
YES
YES
please check corresponding techmical sheets.





REF
0 CYLINDER
FLANGE
A
I
DIM.J
L
P
Q
Nm at 6 bar
1695-012
125
F16
1032
411
600
534
188
1/2"G.
800
1695-025
160
F25
1274
558
800
670
234
3/4"G.
1400
1965-039
200
F25
1274
558
800
670
234
3/4"G.
2700
1965-062
250
F30
1294
558
800
670
234
1"G.
4300
1965-126
320
F35
1583
716,5
1000
835
309
1"G.
7000
1965-198
400
F40
1583
716,5
1000
835
309
1"G.
13700