Thermometer Wells | McMaster-Carr

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Mount Type

Threaded

Weld On

Thermowell Connection Pipe Size

Insertion Length

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For Thermometer Stem Diameter

1/4"

3/8"

For Thermometer Stem Length

Pipe Size

Nut Length

Maximum Temperature

Hole Diameter

Maximum Pressure @ Temperature

Stem Length

Thread Type

Connection Location

Gender

REACH

RoHS

Compliant with Exemptions

Probe Length

Export Control Classification Number (ECCN)

Display Type

DFARS Specialty Metals

Exempt

For Use With

Liquids

Gas

Thermocouple Type

Tube OD

Conduit Connection Pipe Size

Adjustability

249 Products

Thermowells

Guard thermometers and temperature probes in pressurized tanks and pipelines

71 products

Heavy Duty Thermowells

Thick walls stand up to higher pressure and flow than other thermowells

12 products

Food and Beverage Thermowells with Sanitary Quick-Clamp Connection

3-A certified to meet sanitary standards for food and beverage equipment

8 products

Weld-In Thermowells

Weld in place for a more secure connection than our other thermowells

15 products

Thermowells for Insulated Tanks

Install thermometers and probes through thick insulation with the long nut

9 products

Other Products

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

52 products

Thermocouple and RTD Protection Tubes

Shield thermocouple and RTD probes in large, unpressurized tanks

16 products

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

3 products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

33 products