Thermowells
Explore Ashcroft® thermowells for your specific application.
Ashcroft offers a selection of thermowells to protect thermometer stems and bulbs from corrosive media, system pressure and high velocity flow. They also allow removal of the temperature measurement instrument without the need to shut down the process. Industry standard threaded, flanged, socket weld, Van Stone, weld-in and sanitary thermowells in a wide variety of lengths and materials are available to match nearly any temperature measurement device and fit any installation to meet industry standardsShowing 1-10 of 7 products
Threaded Thermowell
Ashcroft® threaded thermowell isolates and protects a temperature instrument's sensing element from pressurized, high velocity and corrosive media. They ensure longer life and accurate measurement...
Flanged Thermowell
Ashcroft® flanged thermowell isolates and protects a temperature instrument's sensing element from pressurized, high velocity and corrosive media. They ensure longer life and accurate measurement...
Socket Weld Thermowell
Ashcroft® socket weld thermowell isolates and protects a temperature instrument's sensing element from pressurized, high velocity and corrosive media. These are typically used where exposed...
Van Stone Thermowell
Ashcroft® Van Stone thermowell isolates and protects a temperature instrument's sensing element from pressurized, high velocity and corrosive media. They ensure longer life and accurate...
Weld-In Thermowell
Ashcroft® weld-in thermowell isolates and protects a temperature instrument's sensing element from pressurized, high velocity and corrosive media. These are typically used where exposed threads...
Sanitary Thermowell
Ashcroft® sanitary thermowell isolates and protects a temperature instrument's sensing element from pressurized, high velocity and corrosive media. These are typically used where exposed threads...
Vortex Thermowell
Vortex thermowells isolate and protect a temperature instrument’s sensing element from pressurized, high velocity and corrosive media. They are used when standard Flanged Thermowells cannot...Types of Thermowells
Ashcroft offers a broad range of thermowells engineered to protect temperature instruments from pressure, corrosion, high flow velocities, and harsh process conditions. Available in a variety of process connection styles, Ashcroft thermowells help extend instrument life while allowing removal of temperature sensors without interrupting the process.
Threaded Thermowells – Built for general industrial and process applications requiring reliable instrument protection with threaded process connections.
Flanged Thermowells – Engineered for high-pressure and critical process applications requiring flanged connections and enhanced mechanical strength.
Socket Weld Thermowells – Designed for welded process connections where exposed threads are undesirable, including sanitary and high-integrity installations.
Weld-In Thermowells – Intended for permanent installation in high-pressure and high-temperature process systems requiring maximum strength and reliability.
Van Stone Thermowells – Simplifies installation and maintenance while providing reliable instrument protection in corrosive process environments.
Sanitary Thermowells – Meets hygienic requirements in food, beverage, pharmaceutical, and biotechnology applications.
Vortex and Helical Thermowells – Optimized for high-velocity process applications.
Industry Applications Where Thermowells are Used
Ashcroft thermowells are used across a wide range of industries to protect temperature instruments, improve measurement reliability, and support safe process operation.
Oil & Gas – Used to protect temperature instruments in upstream, midstream, and downstream processing applications.
Chemical & Petrochemical – Used in corrosive, high-pressure, and high-temperature process environments.
Power Generation – Used in boilers, turbines, heat exchangers, and auxiliary equipment.
Water & Wastewater – Used in treatment, pumping, and distribution systems requiring reliable temperature monitoring.
Food & Beverage – Used in sanitary processing, production, and packaging applications.
Pharmaceutical & Biotechnology – Used in sanitary manufacturing environments.
Industrial Manufacturing & OEM – Used in machinery, process equipment, and automated manufacturing systems.
Pulp & Paper – Used in digesters, recovery boilers, and other demanding process applications.
Hydrogen & Alternative Energy – Used in hydrogen production, storage, fuel cell systems, and other emerging energy applications.
Mining & Metals – Used in high-temperature, abrasive, and heavy industrial process applications.
Frequently Asked Questions for Thermowells
Thermowells, what are they?
What Information is needed to run a Wake Frequency calculation of a thermowell?
Related Resources
When to Use Straight, Tapered or Stepped Thermowells (resource)
How to Calculate Thermowell Stem Length for Temperature Instruments (resource)
How is temperature measured? (resource)
What is a Thermowell? (resource)
When Should I Use a Coated Thermowell? (resource)
