Valve Positioner

Smart Positioners

The intelligent positioners series SRD is designed to operate pneumatic valve actuators and can be driven from control systems, controllers or PC-based configuration tools.
Our smart positioners provide unmatched stable and accurate control, based on the flapper nozzle principle.
The enhanced functionalities of the SRD series enable a significant reduction in commissioning time and reduction of the total installed cost. 
Its widest application coverage and full valve compatibility make into a unique universal Valve Positioner.

Typical Models: SRD991, SRD998.

Common feature includes

  • Auto-start with self-calibration
  • Self-diagnostics, status- and diagnostic messages
  • Easy local operation with three keypads
  • Communication HART, FOUNDATION Fieldbus H1, PROFIBUS-PA, FoxCom
  • Stroke 8 to 260 mm (0.3 to 10.2
  • Angle range up to 95 ° (up to 300 ° on request)
  • Supply air pressure up to 6 bar (90 psig), with spool valve up to 7 bar (105 psig)
  • Single or double-acting
  • Mounting on rotary actuators acc. to VDI/VDE 3
  • Protection class IP 65 (IP 66 on request), NEMA
  • Approved for SIL applications
  • Explosion protection: Intrinsic Safety according to ATEX and FM/CSA

Applications

  • All Process industries applications in hazardous or non-hazardous areas
  • Food & Beverage with Top Mounting Solution (special design for diaphragm and angle seat valves).
  • Chemical Processes with Volatile
  • Organic Compound (with our Fugitive Emission Monitoring Solution).
  • High vibration & temperature applications with the Remote Mounting Solution.
  • Partial Stroke Test (PST) for emergency shutdown applications.

 

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