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Two-pipe, one- or two-temperature, pneumatic thermostat gives proportional control of pneumatic valves & damper actuators. Replacement kits available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell two-pipe pneumatic thermostats.


  • Durable TP970 Series Thermostat. Pilot operated for high capacity.
  • Two-temperature energy conservation model available.
  • Adapter plate in Convertastatâ„¢ kits covers existing thermostat wall mark.
  • Backplate has molded air connections-no separate fittings needed.
  • Universal locking cover with satin chrome finish and horizontal, vertical, or blank window options with Tradeline model-other covers available.

Product Specifications

Wall Thermostat, Heat/Cool Operation
Airflow Usage
0.011 scfm (5.2 mL/s)
Dimensions (in.)
3 1/4 in. high x 2 in. wide x 1 5/8 in. deep
Dimensions (mm)
83 mm high x 51 mm wide x 41 mm deep
Maximum Safe Operating Pressure (psi)
25 psi
Maximum Safe Operating Pressure (kPa)
170 kPa
Temperature Range (F)
100 F maximum
Thermostat and satin chrome cover.
Tradeline Kit
Wall mount
Setpoint Temperature Range (F)
59 F to 90 F
Shipping and Storage Temperature Range (F)
150 F maximum
Shipping and Storage Temperature Range (C)
66 C maximum
Sensor Element
Throttling Range (F)
2 F to 10 F
Throttling Range (C)
1 C to 5 C
Direct Acting Heating, Reverse Acting Cooling
Number of Pipes
Changeover Pressure (psi)
Heat 14 psi, Cool 19 psi
Changeover Pressure (kPa)
Heat 96 kPa, Cool 131 kPa
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