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Ashcroft 50EI60R bimetallic dial thermometer stainless steel case glass window 5in dial 4in stem 1/2 NPT back connection

Ashcroft

Ashcroft 50EI60R Dial Thermometer BiMetallic Glass Window 0-250F -20-120C 4in Stem 5in Dial 1/2 NPT 304 SS

SKU CH-2TDC-3JSBS

Bi-metallic dial thermometer measures 0–250 °F and –20–120 °C with a 4 in stem, 5 in dial, ½ in NPT back connection, glass lens and 304 stainless-steel housing

  • TypeEnvironmental & Mechanical
  • Dual-scale reading covers 0-250 °F and -20 to 120 °C
  • 5-inch dial with glass window gives clear, parallax-free visibility
  • 4-inch stem reaches deep into process streams for accurate immersion
  • 304 stainless-steel housing resists corrosion in harsh environments
  • 1/2 NPT back connection enables direct, leak-tight installation

Industrial Temperature Monitoring

The Ashcroft 50EI60R is a bimetallic dial thermometer built for process and environmental measurement. It displays temperature from -20 to 120 degrees Celsius and 0 to 250 degrees Fahrenheit on a five-inch glass window dial. A four-inch stem and half-inch NPT back connection mount directly into piping or vessels. The 304 stainless steel housing resists corrosion in harsh industrial settings.

Replacing Worn Analog Gauges

This unit replaces aging or uncalibrated dial thermometers where a certified reference is required. It ships with a NIST-traceable certificate, so the upgrade is worthwhile when quality systems demand documented accuracy. The robust 304 stainless construction and glass lens extend service life compared to plastic-lensed alternatives in high-vibration or wash-down environments.

Suited for Plant Engineers and Technicians

Maintenance teams and process engineers who need a direct-reading, locally mounted temperature indicator will find this model fits standard half-inch NPT ports. Buyers who require electrical output for data logging, remote monitoring, or control-system integration should look at transmitters or RTD assemblies instead.

Highlights

  • Dual-scale reading covers 0-250 °F and -20 to 120 °C
  • 5-inch dial with glass window gives clear, parallax-free visibility
  • 4-inch stem reaches deep into process streams for accurate immersion
  • 304 stainless-steel housing resists corrosion in harsh environments
  • 1/2 NPT back connection enables direct, leak-tight installation

Specifications

BrandASHCROFT
TypeEnvironmental & Mechanical

Questions about this item

What thread size fits the 1/2 NPT connection on the 304 stainless steel housing?

The thermometer uses a 1/2 in NPT back connection that threads directly into a matching female port on the process vessel or pipe fitting.

Which way should the 5 in dial face when I thread the 4 in stem into the 1/2 NPT port?

Screw the stem in until the dial points where you can read it, then back off no more than one turn and lock it with a wrench on the hex flats — do not force the glass lens.

When should I send the NIST-traceable certificate for recalibration?

Recalibrate annually or whenever the pointer drifts outside the 0 to 250 °F / -20 to 120 °C scale during a known temperature check.

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