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. 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.

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FAQ

What are suitable materials for thermowells and protection tubes for negative temperatures?

The first choice for high-temperature applications should always be stainless steel, such as 1.4404  (Approval per AD2000 W10 down to -270 °C) or 316L. Carbon steels should be considered carefully in detail, through the effect of the drop-off effect.

What is the maximum insertion length for a thermowell or protection tube?

For protection tubes, the maximum length is limited by the manufactured lengths of the tubes, which is about 5-6 meters.  Thermowells are made of solid material and limited by the production length of the drill hole, which, for each product is between 1,000 mm ... More

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