Murphy 2 in. Mechanical Temperature Murphygage 130-250F with 6 ft. PVC-Armored Capillary and Without Contact - A20TG-250-6-1/2


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0.91 LBS
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Increments of 1

The Murphy Temperature Murphygage A20TG-250-6-1/2 is a diaphragm-actuated, temperature-indicating gage without contact. This rugged, built-to-last instrument is fully sealed from the environment by the unique combination of a polycarbonate case and lens, a polished stainless steel bezel and O-ring seal. This vapor/pressure actuated gage features a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against a diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gage reading.

Applications for this instrument includes: engines and equipment in the oil field, marine, irrigation, construction and trucking industries, monitoring engine coolant temperature, crankcase oil, transmission oil.


  • Murphy Part No.: A20TG-250-6-1/2
  • Series: A20T Series
  • Base Model: A20TG
  • Range: 130-250°F (60-121°C)
  • Capillary: PVC armored copper; 6 ft. 
  • Adapter Nut: 1/2-14 NPT (Standard)
  • Diameter: 2 inch / 51 mm, Dial
  • Dial: White on black; U.S.A. standard scale is dual scale °F/°C
  • Case: Glass filled/Polycarbonate, corrosion-resistant; steel mounting clamp included
  • Bezel: Polished stainless steel, standard
  • Pointer: Tempered nickel silver; red tip
  • Lens: Polycarbonate, high-impact
  • Sensing Element: Beryllium copper diaphragm
  • Sensing Bulb: Copper
  • Lower 1/3 of Scale Gage Accuracy: ±9°F (±5°C)
  • Middle 1/3 of Scale Gage Accuracy: ±5°F (±2.4°C)
  • Upper 1/3 of Scale Gage Accuracy: ±4°F (±2°C)
  • Maximum Temperature: 310°F (154°C)
  • Maximum Ambient Temperature: -40°F (-40°C) through 150°F (66°C)
  • Unit Weight: 11.9 oz. (0.370 kg)
  • Unit Dimensions: 4-3/4 x 4-3/4 x 3 in. (121 x 121 x 76 mm)

Product Condition: NEW

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