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Temperature Murphygage 130-250F 2.5" with 18 Ft Capillary 25TG-A-250-18-1/2

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Mechanical 130-250F Temperature Murphygage 2.5 in. Argon Filled w/ 18 Ft Capillary - Without Contact - 25TG-A-250-18-1/2 by Murphy

Product Condition: NEW
Mechanical 130-250F Argon Filled Temperature Murphygage with 18 Ft Capillary, 1/2-14 NPT and Plated Steel Case 25TG-A-250-18-1/2
Estimated ship date: for orders by 3pm PT/6pm ET today Available for back order.

SSL Cerficate

The Mechanical 130-250 Argon Filled Temperature Murphygage 2.5" with 18 Ft Capillary 25TG-A-250-18-1/2 by Murphy is diaphragm-actuated, temperature-indicating gage without contacts/switch. The gage mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument.  This vapor 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 the diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gage reading.

Applications: Industrial engines and equipment in Oil Field, Marine, Irrigation Construction and Trucking industries. Monitoring Engine Coolant, Crankcase Oil and Transmission Oil.


  • 2-1/2 inch/64 mm Dial
  • Steel Case Coated to Resist Corrosion
  • Polycarbonate, High-Impact Lens
  • Polished Stainless Steel Bezel
  • Indicating Gage
  • Gage-only model without contacts
  • A = AGF (Argon Filled)



  • Part No.: 25TG-A-250-18-1/2
  • Range: 130-250°F - 60-121°C
  • Adapter Nut: 1/2-14 NPT
  • Dial: White on black; U.S.A. standard scale is dual scale °F/°C
  • Case: Plated steel; mounting clamp included (except for direct mounting models)
  • Bezel: Polished stainless steel
  • Pointer: Tempered nickel silver
  • Lens: Polycarbonate, high-impact
  • Sensing Element: Beryllium copper diaphragm
  • Capillary: PVC armored copper; 18 ft
  • Sensing Bulb: Copper
  • Gage Accuracy: Gage Accuracy: 130 to 250°F (54 to 121°C) Temperature Range; ± 9°F (± 5°C) Lower 1/3 of Scale; ± 5°F (± 2.4°C) Middle 1/3 of Scale; ± 4°F (± 2°C) Upper 1/3 of Scale
  • Maximum Temperature: 310°F (154°C)
  • Standard Setting: 210°F (99°C)
  • Unit Weight: 13.8 oz. (0.43 kg)
  • Unit Dimensions: 4-3/4 x 4-3/4 x 3 in. (121 x 121 x 76 mm)

Additional Information

Product Condition NEW
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