TTD Tridicator



  • Hot water and steam pressure for boilers


  • Measures both pressure and temperature on the same dial
  • 2.5” (63mm) and 3” (75mm) dials
  • Dual scale (°F & °C)
  • Back or bottom connection
  • Brass wetted parts
  • 1" (25mm), 2” (50mm) and 2.5" (63mm) stems
  • Multiple pressure and temperature ranges available
  • Ranges are compliant to industry standard ASME Boiler Code Section IV HG-612
  • 5 year warranty


Dial 2.5” (63mm), 3” (75mm) aluminum, painted white
Case Steel, painted black

2.5″ (63mm): Acrylic, threaded

3” (75mm): Glass


3” (75mm): Chrome

Stem Brass
Socket Brass
Tube Phosphor bronze
Movement Brass and phosphor bronze
Sensing Element

Temperature: Bi-metallic coil

Pressure: Bourdon tube

Pointer Aluminum, anodized black
Welding Tin-alloy solder
Pressure Limit 75% of full scale range
Ambient Temperature 23°F to 122°F (-5°C to 50°C)
Process Temperature 75% of full scale range

Pressure: ±3-2-3%

Temperature: ±3% of full scale

Enclosure Rating IP50
Warning Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to

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