Sensors and field conditions are mainly connected by threaded connections, there are many types of sensor threads, common models are G, M, PT, NPT, etc., which belong to the pipe thread. G: is a 55° unsealed pipe thread, belonging to the Wyeth family of threads. The symbol G stands for cylindrical thread. In addition, the 1/4, 1/2, and 1/8 markings in the sensor threads refer to the thread size designation in inches. People in the industry usually use points to call the thread size, an inch is equal to 8 points, 1/4 inch is 2 points. M: is the metric thread, the sensor standard thread connection for M20 * 1.5, introduction, 20 is the diameter of the thread, 1.5 is the pitch. Sensors commonly used metric thread and M14 * 1.5 specifications. PT: is a 55 degree sealed round spine pipe thread, mostly used in Europe and the Commonwealth countries, commonly used in the water and gas pipe industry, taper 1:16, the domestic sensor industry, there are called ZG. NPT: is a U.S. standard 60-degree tapered pipe thread, divided into general sealing cylindrical pipe threads and general sealing conical pipe threads, in the sensor with the way by the “cone/cone” with the “column/cone” with. In the process of purchasing sensors should be clear about the type of thread, so as not to cause the dilemma of the field installation, resulting in unnecessary trouble, delay or drag the whole project. Sensors are generally male threads. Some customers choose the thread type and size and their own site is the same, but in the sensor installation process or not connected, then it is possible that your site is the use of tapered threads, tapered threads for the triangular shape of the teeth, there will be screwed on the phenomenon. In addition to some conventional thread type, such as the Star Instruments sensor production-oriented sensor companies, can also be customized according to the user’s needs on-site thread, to meet the use of different conditions. Different types and models of sensors, its connection is also a variety of sensor connection in addition to threaded connections and flat film sanitary sensors clamp connection, by the non-nuclear type sensors using the 1502 wing type by the non-nuclear interface, differential pressure sensors applied to the fast interface, Pagoda mouth, 3051-type sensors are more flange connection. If you have any questions about product consultation, product customization, agency, technical inquiries, quotations, etc., please contact the Star meter hotline: 400-600-4496 !