Bimetallic thermometer of axial and radial price the same?

Bimetallic thermometer according to the needs of the installation environment, can be divided into radial bimetallic thermometer, axial bimetallic thermometer and universal type of bimetallic thermometer. They work are based on the principle of solid heat expansion, the two pieces of expansion coefficient difference is very big pieces of metal welded together. When the temperature changes, the difference is very big, caused the different expansion coefficient of expansion and contraction, the deformation of sheet metal bending. According to different deformation and produce different momentum, momentum to drive the connection shaft and the other end of the indicating needle, indicate the temperature. So their price is the same? Universal type double metal thermometer both axial and radial function of bimetallic thermometer, so its price will be higher than them. The radial and axial type bimetallic thermometer? We must from the header and the connection mode of the heat pipe, the radial type of bimetallic thermometer header with heat pipe and stainless steel pipe welding by pan again connecting screw tooth, and axial type bimetallic thermometer is the teeth directly welded together with the pan. Thus radial type bimetallic thermometer than axial type is the price of bimetallic thermometer prices high.