For each measuring point requirement the optimum thermowell

Thermowells from WIKA are used with demanding operating conditions both in solid-machined versions from solid-body material and in fabricated versions with tubular design. The variants offered differ mainly in their designs; with flanges, with threads for screwing in or for welding in. Furthermore, all connections for sanitary applications and also thermowells in solid-machined Vanstone design are available without weld seams. The selection of materials and the manufacturing of the thermowells in accordance with global standards or to customer specifications ensure optimal protection for the sensor.

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FAQ

Why do some users specify a polished thermowell surface, and others define a high roughness or knurling of the area in the flow?

This depends on the usage of the thermowell.  A polished surface has a higher corrosion resistance than a rough surface.  The rough or knurled surface has an advantage with respect to the vibrational excitation by the Karman vortex street, meaning such th ... More

Why do modern thermowells mainly have female threads for thermometer connections, and not male threads as in older specifications?

The risk of damage with  female threads is less than with male threads.Since the replacement of thermowells is always fraught with difficulties. Since it allows the thermometer to be removed without difficulty while the plant is running, this configuration is ... More

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