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The thermal resistance for petrochemical industry is designed specifically for the petrochemical sector, which can directly measure temperature of liquid, vapor, gas media and solid surfaces within the range of -200 ℃ to 1600 ℃.

● Working principle

The electrodes of a thermocouple are composed of two different conductor materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential is generated, and the working instrument displays the temperature value corresponding to the thermoelectric potential.
Thermocouples measure temperature by utilizing the characteristic that the thermocouple of a substance also changes with temperature changes. The heated part (temperature sensing element) of a thermocouple is uniformly wound around a skeleton made of insulating material with thin metal wires. When there is a temperature gradient in the measured medium, the measured temperature is the average temperature in the dielectric layer within the range of the temperature sensing element.

● Main technical parameters

EC1515IEC584IEC751JB/T5518-91JB-T5582-91

Generally refers to the ability of the protective tube to withstand static outer diameter without rupture at room temperature. The allowable working pressure is not only related to the material, diameter, and wall thickness of the protective tube, but also to its structure, installation method, and the flow rate and type of the measured medium.