FTW Screwed Straight Thermowell Test Well

FTW Screwed Straight Thermowell Test Well is most commonly used Thermowell. It is available in Inconel, Hastelloy, a 316/316L SS, 304/304L SS, Monel, Titanium.

FAV range of FTW Screwed Straight Thermowell Test Well protects and extends the usage life of a temperature sensor in critical process applications where the sensor is not physically compatible with the environment. Installed directly into the piping systems, Thermowell test well facilitate sensor replacement in high pressure pipelines and eliminate the need to interrupt the process flow or drain the process system for sensor maintenance function. Thermowell test well are utilized when pressure, high velocity and corrosive process media exist. This serves to isolate and protect the sensing instrument, and permits removal of a sensing instrument without shutting down the process. A perfect solution for protecting the process and extending product service life.

FTW Screwed Straight Thermowell Test Well are installed directly into the systems where protection of sensing equipment is critical, Thermowell test well facilitates the continuation of process flow in the system for sensor maintenance function.

FAV Straight Thermowell has been specifically designed for use on instrumentation, process and control systems, together with equipment employed in oil and gas, marine and shipping, chemical, chromatography, petroleum. Straight Thermowell provide safe and reliable pressure measurement, while meeting challenging applications in Process Market like Chemical and Petrochemical Plants,Water and Wastewater pressure Control and Medical and Life Sciences Market like Pharmaceutical / Biotech and Food and Beverage

FAV FTW Screwed Straight Thermowell Test Well are available in Stainless Steel, Brass, Steel, Monel, Hastelloy C, Incoloy, Inconel 600.


  • Customize your own Thermowell test well or Select from Standard Catalogues
  • We can make custom Thermowell test well upto 6000 mm
  • Variety of styles , shapes and sizes
  • Options of Thermowells end connections


FTW Screwed Straight Thermowell Test Well
FTW Screwed Straight Thermowell Test Well


F H Hex D              
1/2″ NPT/BSP 1-7/8″ 1-1/8″ 5/8″              
3/4″ NPT/BSP 1-7/8″ 1-1/4″ 3/4″              
1″ NPT/BSP 2″ 1-7/16″ 3/4″              
U 2″ 3″ 4″ 5″ 6″ 8″ 10″ 12″ 18″ 24″




Basic Selection Criteria for Thermowells

Insertion Lengths 2″ to 32″
Process connection 1/2″ to 2″
Thermowell connection 1/2″ to 2″
Bore Size 1/8″ to 1/2″ (4mm to 12mm)
End Connection NPT,BSP,Socket Weld
Material  SS 316 , SS 316L, SS 304 , CS, Brass,Monel and Hastelloy.Titanium
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