Thermowells

All of our Thermowells are manufactured in-house on D&N’s CNC lathes. If you would like to add a thermowell next temperature sensor purchase, please contact our sales team.

What are Thermowells?

Thermowells are tubular fittings used to protect temperature sensors installed in industrial processes. A Thermowell consists of a tube closed at one end and mounted in the process stream. A temperature sensor such as a thermometer, Thermocouple or resistance temperature detector is inserted in the open end of the tube, which is usually in the open air outside the process piping or vessel and any thermal insulation. The process fluid transfers heat to the thermowell wall, which in turn transfers heat to the sensor.

A Thermowell is designed to protect your Temperature Probe from anything that might damage it. High velocity or high pressure can cause Temperature sensors to bend or warp. Constant exposure to certain materials may cause your Temperature Probe to corrode or erode such as phosphoric or sulphurous acids.

They also ensure the temperature device never touches the materials being measured protecting the material from contamination. This is vital for many applications such as the brewer, who needs to monitor Temperature throughout the fermenting process without contamination to the product. This also comes with the added benefit of allowing you to service or replace your thermometer without draining the vessel or without leakage of your material.

Due to the added mass present, the response to process temperature changes is delayed. This makes Thermowells not suitable to applications that require measurement of quick temperature changes.

D&N Engineering expertly crafts Thermowells in-house on our CNC lathes from a range of materials and can manufacture to suit a supplied sample or sketch.

twell_ss_flange
thermowell
MACHINED THERMOWELL

 

thermo-welded
FABRICATED WELDED THERMOWELL

BAR STOCK MACHINED

ITEM

DESCRIPTION

thermowell TMA Thermocouple

STYLE TMA

THREADED THERMOWELL MACHINED

 Thermowell Thermocouple TMB

 STYLE TMB

TAPERED THREADED THERMOWELL MACHINED

 Thermowell Thermocouple TMC

 STYLE TMC

THERMOWELLS MOUNTED BUSHES MACHINED

 Thermowell Thermocouple TMD

 STYLE TMD

THERMOWELL HEX NIPPLE MACHINED

THERMOWELL FABRICATED WELDED

ITEM

DESCRIPTION

Thermowell Thermocouple TFA

STYLE TFA

THERMOWELL BUSHING REDUCERS
FABRICATED WELDED

Thermowell Thermocouple TFB

STYLE TFB

THERMOWELL COMPRESSION FITTING
FABRICATED WELDED

 

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