Linear pneumatic actuators PA (100 cm² to 2400 cm²)

PA series pneumatic multi-spring actuators with rolling diaphragm, offering decreased hysterisis and good linearity throughout the operating range. Available in air to close and air to open versions, for modulating and on/off services. 

  • Multi-spring compact design. 
  • Actuators with rolling diaphragm. 
  • High spring thrusts and stroking speeds. 
  • Strokes up to 60 mm. 
  • Sizes from 100 cm² to 2400 cm². 
  • Yoke and stem coupling with mounting according to NAMUR (DIN IEC 60534-6-1). 
  • Operation temperature range from -20 ºC to 80 ºC.
  • Top mounted handwheel. 
  • Stroke limiter. 
  • Stainless steel construction. 
  • Positioners, limit switches, I/P converters, volume boosters, feedback units and others. 

Actuation of ADCATrol control valves, or others on request. 

PA10, PA25, PA40, PA80, PA80D and PA80T – mild steel. 

PA10i, PA25i and PA40i – stainless steel.