WIKA

Thermowells / protection tubes

For each measuring point requirement the optimum thermowell / protection tube

Thermowells / protection tubes from WIKA are used with demanding operating conditions both in solid-machined versions from bar stock material and in fabricated versions with tubular design. The variants offered differ mainly in their designs; with flanges, threaded or for welding in. The connection of the thermowells / protection tubes by flange is universal and is used in many processes. The compact form of the threaded connection saves space and mounting is also very easy. If the process safety and robustness is important, the thermowells / protection tubes can be welded into the process directly. 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 / protection tubes in accordance with global standards or to customer specifications ensure optimal protection for the sensor.

FAQ
FAQ

Why do older themocouple designs often have a spherical tip?

In the past, HSS drills were used with a tip angle of 118 ° for the production of thermowells.  In order to achieve a possible uniform wall thickness, the tip was ball-shaped or spherical in shape.  The current state of production technology enables ...

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What does ZFP, NDE or NDT mean?

ZFP is the German abbreviation for "Zerstörungsfreie Prüfungen" (non-destructive examinations). The abbreviations NDE or NDT stand for "Non-Destructive Examination" or "Non-Destructive Testing", respectively. This is used to r ...

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What is the minimum insertion length of a thermowell or protection tube?

The insertion length of a thermowell or protection tube will be specified through the thermometer  used. In general one can assume a length of  60-100 mm for mechanical thermometers from a minimum total length. Electrical thermometers need an inserti ...

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