Winters Instruments
TTD Series 3 in. Steel Case Tridicator with 1/2 in. NPT Back Connect and Range of 0-75 psi/kPa and 70-320 Degrees F/C



Winters Instruments TTD Series Tridicator is used mainly on hot water and steam pressure for boilers. 3 in. white aluminum dial. Black steel case. Glass lens. Chrome ring. Brass stem, socket, and tube. Brass and phosphor bronze movement. Bi-metallic coil sensing element on the temperature side. Bourdon tube sensing element on the pressure side. Anodized black aluminum pointer. Tin-alloy solder welding. Pressure limit is 75% of the full scale range. Ambient Temperature is 23 to 122°F. Process Temperature is 75% of full scale range. Pressure Accuracy is +/-3-2-3%. Temperature accuracy is +/-3% of full scale value. IP50 Enclosure rating. 1/2 in. NPT back connection. Pressure and temperature ranges of 0 to 75 psi/kPa and 70 to 320°F/C.

California residents: see   Proposition 65 information

  • Wetted material is brass
  • Measures both pressure and temperature on the same dial
  • Dual scale (F/C and psi/kPa)
  • Ranges are compliant to industry standard ASME boiler code section IV HG-612
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