Thermowells

Introduction to Thermowells: Materials—The Longevity Factor- In general, the thermowell material to be chosen for an installation is governed mainly by the corrosion conditions the well will face. The high polish given to all stainless and Monel wells provides maximum corrosion resistance. Occasionally, the primary consideration is one of strength rather than corrosion resistance. For…

Immersion Length (“U” Dimension”- For best teamperature measurement accuracy, the “U” dimension should be long enough to permit the entire temperature sensitive part of the measuring instrument to project into the medium bearing measured. Liquid temperature measurement: A properly designed thermowell will extend into the fluid an amount equal to the length of the temperature…

How to Select a Suitable Thermowell In many pressurised processes it is often not possible or advisable to insert the temperature instrument directly into the media being measured. A thermowell protects the temperature instrument, permits the instrument to be exchanged or calibrated, and keeps dangerous or expensive media within the process installation. To make a…