Sheath and double metal thermometer thread how to match

Bimetallic thermometer is applied to the construction of factories and machinery, bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. In order to meet the needs of production, purchase of bimetallic thermometer will buy bimetallic thermometer with sheath of more and more customers. Because of the sheath, bimetallic thermometer with which to replace, can replace the bimetallic thermometer under the machine running state, do not need to stop the machine to replace, the safety of installation workers can also have very good protection effect. Both reduced the cost, and safety. Above, card sets of thread with thermometer sheath screw bimetallic thermometer is around into shape thermal 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. The sheath and double metal thermometer thread how to match? Below small make up to answer for you to choose the high quality of belt sheath bimetallic thermometer is very important, the most main is sheathed in the tooth and the teeth of bimetallic thermometer should agree to install match, for example: if the teeth metal thermometer is 1/2 NPT, teeth requirements within the sheath of 1/2 NPT. Inside and outside the tooth, sheath length, of course, is a customizable, high quality tooth head should be no crack, collapse, ground bald and the phenomena of tooth.