How to distinguish between the radial and axial bimetallic thermometer?

Bimetallic thermometer is widely used in industrial equipment, petrochemical industry, Marine, hvac equipment, ventilation equipment, nuclear power plants, and other fields, it can be directly measured Temperature of 50 to 500 c, its working principle is to round shape into threaded heat bimetallic strip as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial. According to the installation environment is different, we will reduce the bimetallic thermometer into radial bimetallic thermometer, axial bimetallic thermometer and universal type of bimetallic thermometer. So how to distinguish them? Today we to the radial and axial bimetallic thermometer, for example, talk about how to distinguish. As shown, the radial and axial bimetallic thermometer is the biggest difference is not the same as the header and thermal connection direction. So we took the watch case with thermal GuanPing line called radial type bimetal thermometer; While watchcase and heat pipe vertical type called axial bimetallic temperature.