Dosch - Thermowells
Thermowells are used for a safe installation of temperature sensors into pipes. They prevent the sensor to get in physical contact with the process fluid and are therefore recommended for aggressive fluids and for high dynamical stress which could harm the temperature sensor. Additionally, thermowells offer an easy way to remove the sensor during operation for maintenance.
For differential pressure flow elements with attached inlet and outlet pipes, thermowells are often used to measure the operating temperature downstream in the outlet pipe. The design of thermowells can be divided into the type of process connection (flanged, threaded, welded) and into the type of connection that is utilized to mount the temperature sensor into the thermowell (threaded, welded).