Electro-pneumatic Valve Positioner

The electro-pneumatic Positoner SRI983 with analog input 0/4-20 mA is designed to operate pneumatic valve actuators and is available in the version EExd - Flameproof / "explosion proof" (EEX ia / "intrinsic safety"). The adaption and settings of zero and span can easily be achieved by the knurled-head screw.

SRI983

Common Features:

  • Stroke 8 to 100 mm (0.3 to 4 in) extended sroke range on request
  • Angle range up to 120 degrees
  • Characteristic curves by cams
  • Supply air pressure up to 6 bar (90 psig)
  • Built-in pressure gauges (optional)
  • Low air consumption
  • Low vibration effect in all directions
  • Single or double-acting
  • Mounting on linear actuators according to VDI/VDE 3845
  • Protection class pneumatic unit: IP54 (IP65 on request)
  • Protection class I/P converter: IP65 (acc. to ATEX), NEMA 4 (acc. to FM and CSA)
  • Explosion protection: II 2 G EEx d IIC / Flameproof - "explosion proof" (and II 2 G EE x ia IIC / "Intrinsic Safety") acc. to ATEX. "Explosion proof ("Intrinsic Safety") acc. to FM and CSA