SR/CCK is specifically designed for the proportional quarter-turn operation for the actuation of butterfly, plug, ball valves, etc. It can be also used on linear actuators using a specific bracket. It is usually located in the control circuit between the air filter regulator and the actuator of the final control element.

This positioner has a heavy duty design to make it suitable for use as part of the pneumatic valve set in the potentially harsh conditions found in petroleum, chemical, power, metal production and other hazardous fields.

This is a double acting positioner which can also be used as single acting. The SR/CCK positioner is equipped with a different linear cam (angle up to 270°) to allow use on actuators with different strokes. Cam operating angles and range adjustments are printed on the positioner. Special cam profiles are available on request. This positioner is based on the balanced-forces principle and air distribution to the actuator chamber is executed by a spool.


  • Available with full stainless steel
  • Heavy duty design
  • High reliability
  • Special characterisation/range
  • Split range signal spool valve
  • Visual position indicator
  • Suitable for:
    Standard, offshore, sandstorm, copper free ambient condition
    Single and double acting actuators
    Low and high ambient temperature

Technical data

Input Signal

3-15 psi

4-20 mA

Standard operating temperature

-20°C to 70°C

(lower or higher temperature on request)

CV max low flow

ND 1/4” Inlet = 0.34

ND 1/4” Outlet = 0.34

Air consumption

1.02 Nm3/h (0.6 SCFM) at 400kPa (60 psi)


Feeding connection

 ND 1/4”

Electrical connection

 ND 1/2” NPTF

Supply pressure

2.5÷7 bar


0.5% of full stroke


1% of the full stroke


0.25% of signal range

Accessories available

Pressure gauges

Contact us for more information