What kind of thermometer is suitable for use on boiler?

Boiler is divided into many types, so, what kind of thermometer is suitable for use on boiler? The specific issue concrete analysis, today we have in common for boiler heating boiler and hot water tank is equipped with a high said this problem. First of all, in heating boiler with normal bimetallic thermometer thermometer, the working principle of boiler bimetallic thermometer is using the different expansion coefficient of two kinds of metal ( Or alloy) Piece together form a thermal components, generally made spiral wound, its end ( The free end) Equipped with a pointer. When the temperature changes, the thermal component of curvature change, free end rotation, drive the pointer indicates the temperature value on the dial. The product as the iron shell, with copper sheath, convenient installation and disassembly, affordable price. The hot water tank is equipped with a high boiler pressure type thermometer is used more convenient. The working principle of boiler pressure type thermometer is according to the heat in sealed containers within the medium pressure will principle to measure the temperature changes with temperature. It is mainly composed of spring tube, connected to the capillary tube and bulb. Its internal and a heat medium of a closed system. Bulb under the condition of heat, increase the stress direction along the spring tube in transmission organization leads, the instrument pointer will to a certain extent affect the elastic deformation of the spring pipe, and display the temperature. As a whole stainless steel material, the product has a longer capillary line, can realize remote temperature measurement.