subject: Finding The Right Thermowell For You [print this page] Temperature sensors are used across many different industries and play a vital role in the manufacturing process. However, if you have an environment that is not going to be compatible with the materials the temperature sensor is made of, this can be a huge problem unless you have the proper tools to help prevent any damage. For example, some environments may be extremely hot or cold which could damage the temperature sensor itself. Other environments may have specific chemicals which won't agree with the materials the temperature sensor is made of. When there is not a compatible environment, the plant can purchase and install thermowells with each temperature sensor. The temperature sensor is designed to read the temperature of its environment and relay the usable information back to the rest of us. By using temperature sensors this way, we are able to know that the correct temperature has been reached for the needs of that specific environment. This is to ensure the safety of all who are involved in the process as well as ensure that the product the plant is making or testing will be done properly.
A thermowell is a device that is pressure-tight and can help prolong the life of a temperature sensor when it needs to be used in an environment that is not compatible. A thermowell is placed right into the pipe system of the plant, which can also make relocation of sensors and fairly easy process. There are many different types of thermowells so if you are not sure which type of thermowell should be used, here is a list of some types you could choose from. As you read over the following examples, see which type of thermowell may sound like the best fit for your needs.
Drilled thermowells are found most often in processing applications. There are different mounting threads, lengths and materials used depending on the need you have. These include standard duty, heavy duty, straight shank socket weld and weld-in wells. Flanged thermowells are also found in process applications and can be purchased as heavy duty or standard duty with raised-faced flanges.
Built-up protection wells are smaller in diameter for general purpose wells. These are great for use in low temperatures and in low pressures as well. They are made using tubing and welding and are of stainless steel construction. Thermal element wells can be designed for use with Partlow's filled system thermometer bulbs and have external and internal threads. There are so many types of thermowells that you can always ask an expert for a thermowell recommendation for your specific needs.
