Rosemount™ Thermowells

Meet process challenges with innovated technology that defines industry standards

A Leader in Thermowell Calculations

For over 20 years, Emerson has been a leader in accurate thermowell calculating. In 2010, along with other vendors, users, agencies and academia, we helped the American Society of Mechanical Engineers (ASME) update the thermowell calculation standard from PTC 19.3 to PTC 19.3 TW.

We understand all aspects of the thermowell calculation standard and are adept at helping businesses comply with this new calculation. In fact, our expert calculation team performs over 35,000 thermowell calculations each year.

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Thermowell Solutions

A robust and versitle thermowell family‑‑precision manufactured in a wide variety of mounting styles, process connections, and materials for adaptability and compatibility.

Design flexibility allows you modify the thermowell profile to fit exact needs
Large variety of standardized thermowell tests and certificates for traceability and safety
Access to thermowell calculation tool (according to ASME PTC 19.3TW-2016) to ensure thermowell is safe in selected process conditions
Global models available around the world

Mounting styles include ANSI rated flanged, threaded, welded and tri-clamps styles

Can be ordered with a Wake Frequency Calculation report for verification of process compatibility
Variety of thermowell materials available
Access to thermowell calculation tool (according to ASME PTC 19.3TW-2016) to ensure thermowell is safe in selected process conditions

Mounting styles include ANSI and DIN rated flanged, DIN rated welded and metric threaded thermowells.

Variety of thermowell materials available
Access to thermowell calculation tool (according to ASME PTC 19.3TW-2016) to ensure thermowell is safe in selected process conditions

Big performance from a compact barstock thermowell.

Flanged or welded mounting styles
Tapered tip for faster response time
Choose from a large selection of materials

A New Twist on Thermowell Design

Save money and engineering time while increasing safety
Eliminates over 90% of dynamic stress
No wake frequency or dynamic stress calculations
Greatly reduces the risk of thermowell failures with changing process conditions (start-up, shutdown, events)

See the Thermowell Comparison Video for an inside look at the life of a thermowell. For more information on the Rosemount Twisted Square thermowell visit our product page.