How to choose the industry with bimetallic thermometer sheath?

Industrial bimetallic thermometer when use generally supporting sheath used together, in the petrochemical industry, heating system, pipelines, power plants, Marine, hvac equipment, ventilation equipment, and other fields can be in, deserve to go up industrial bimetallic thermometer protective way to install and remove, and in certain circumstances ( For example, when using the environment pressure more than 40 kg) Also have the effect of protection heat pipe. So, how to choose the industrial bimetallic thermometer sheath? According to its function, we can know, in fact, choose the bimetallic thermometer sheath is mainly used in industry to focus on three, the first is the material, it is important to choose the SS304 or SS316 material, these two material is durable, if material is bad, need to replace the sheath is not convenient; The second point is the bimetallic thermometer sheath of the specifications of the female and male must ask clear, or it will affect the installation; The third point is the length of the heat pipe, the length of the heat pipe and the specifications of the internal thread, matching the length of the bimetallic thermometer heat pipe. If the use of special environment, the need according to the actual situation to determine.