Electro-pneumatic Valve Positioner

The electro-pneumatic Postioner SRI986 with an analog input 0/1-20mA (or optional with 0-10 VDC) is designed to operate pneumatic valve actuators and is available in the version EEx ia / intrinsic safety. The adaption and settings of zero and span can easily be achieved by the knurled-head screw.

SRI986

Analog (4-20 mA)

  • Independent adjustment of zero and span
  • Adjustable amplification and damping
  • Split-range up to 3-fold

Technical Data

  • Analog (0/4-20 mA): Load 200 Ohm (4 VDC at 20 mA)
  • Analog (0-10 VDC): 4-wire version, operation by U/I converter (on request)

Common Features

  • Stroke 8 to 100 mm (0.3 to 4 in); extended stroke range on request
  • Angle range up to 120o
  • Characteristic curves by cams
  • Supply air pressure up to 6 par (90 psig)
  • Low air consumption
  • Low vibration effect in all directions
  • Single or double acting
  • Mounting on linear actuators according toIEC 534, Part 6 (NAMUR)
  • Mounting on rotary actuators according to VDI/VDE 3845
  • Protection class IP 54, IP 65 (on request)