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DIAPHRAGM MULTI-SPRING PNEUMATIC ACTUATORS (TYPE P/R)

APPLICATION AREA
The multi-spring membrane pneumatic actuators of P/R type are applied for control operation of control valves and other positioning elements in industrial automatic systems. There are three following design options of the acutator:
Wykonywane są w następujących odmianach:
  • direct action (air - ejects the stem) - type P,
  • reverse action (air – retracts the stem) - type R,
  • direct action, handwheel - type PN,
  • reverse action, handwheel - type RN
FEATURES:
  • completely reversible action, option to change spring range w/o extra parts,
  • actuator mounted on the columns,
  • wide range of the available forces,
  • linear relationship between rod displacement and control pressure as a result of using membranes with constant active area,
  • various ranges of spring pressures due to changeability of spring number and /or dislocation of distance fencers,
  • capability of the actuator o incorporate side-mounted handwheel,pneumatic or electro-pneumatic positioners, limit switches, air sets, three-way pneumatic solenoid valves, lockup valves, position transducers,
  • possibility to equip with accessories allowing to decrease or increase distortion time,
  • high strength of diaphragms, springs and packings,
  • small size and weight


DATASHEET
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