Fail Freeze Smart Digital Positioner - SS5

  • Fail Freeze
  • Auto-calibrate
  • HART
  • Digital display
  • 10 amp Micro Switches

The Triac Controls SS5 Smart Digital Positioner is avaiable as a Linear Type or Rotary Type valve positioner. It is the perfect combination with reliable fail freeze function and smart performance with innovative durable coil drive.


  • “Fail Freeze” function to help the valve stay at the last position on the electrical power supply or the pneumatic supply air by accident
  • Easy and quick auto-calibration
  • Detects RA (reverse acting) or DA (direct acting) automatically regardless of wrong air connections
  • Available to use for single or double acting without any special adjustments
  • Compact design allows installation on small actuators
  • Provides error messages against performance failures
  • Possible to test the actuator with any fixed signal under a test mode
  • Programmable characteristic curve with 17 points
  • Wide operating temperature range -22° F to 176° F
  • Improved control of high-friction globe and ball valves by eliminating an overshoot and a hunting
  • Low air consumption
  • Provides a mounting bracket to meet IEC 60534-6-1 for linear valves
  • Supports a NAMUR mounting pattern VDI/VDE 3845 (IEC 60534-6-2) and provides a multi-size mounting bracket for rotary valves


  • Output position transmitter (4 - 20 mA)
  • 2 x alarm limit or micro switch (SPDT)
  • Explosion proof type (IECEx / ATEX / KC Ex ia IIC T5)
  • HART communication
  • Profibus communication (in progress)
  • Fieldbus Foundation communication (in progress)
SS5 Fail Freeze Smart Digital Valve Positioner
phone 513.247.5465    fax 513.247.5462
AVU Registrations, Inc. Management System Certificate
Certified to
ISO-9001: 2008
Canadian Registration Numbers
TA-Luft Certified Ball Valves
Firesafe Certified Ball Valves
API 607
4th Edition

Valves & Actuators
ABS Approved

CSA Group
Product Listing
A-T Product Overview > Valves, Actuators and Automation Controls