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Close end tube (Pipe) type thermowell_A500, A510 series


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Close end tube (Pipe) type thermowell_A500, A510 series

Close end tube (Pipe) type thermowell_A500, A510 series


Service intended

Temperature sensors or indicating type temperature gauges are not directly inserted into the process pipe, unless these are used to measure the outside temperature of process pipe, instead, these are used with thermowells. By using thermowells, sensors and gauges will not interfere with the process line operation, and the users are able to perform the maintenance procedure of the process line more easily. A500 and A510 Series are either pipe or tube with one end is sealed. These thermowells are used in the process pipe where a very slow current is exist or in a container, and its length can be vary.

* Note. Depending on the material and U-length, the appearance of the connector may change.

Standard features

Selection of thermowell ■ Material
In general, the thermowell material chosen for the installation is governed mainly by the corrosion condition the themowell will face. Recommended material for various services are given in the corrosion table. Occasionally the material consideration is one of strength rather than corrosion. For example, a stainless steel thermowell may be required for a high pressure water service where otherwise a brass thermowell would be satisfactory from a corrosion standpoint.
■ Insertion
The distance from the end of the well to the underside of the thread or other connection means (Designated as "U") is the insertion length.
■ Tapered or straight type
Tapered type thermowells provide greater stiffness for the same sensitivity. The higher strength to weight ratio gives these thermowells higher natural frequency than for equivalent length straight type thermowells, thus permitting operation at higher fluid velocity.
■ Bore size
Almost any installation uses several types of temperature measuring instruments. The selection of a standard bore diameter can produce extreme flexibility within the plant.


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