YF08 high-pressure porous manual adjustable pressure valve

The pressure sensor NPT is the abbreviation of national (American) pipeline thread.

60-degree taper pipe thread, which belongs to American pressure sensor standard, is used in North America. The national standard can be found in GB/T12716-1991.

PT is the abbreviation of Pipe Thread, which is a 55-degree sealed conical pipe thread. It belongs to the thread family of Wyeth pressure sensors and is mostly used in Europe and Commonwealth countries. It is commonly used in water and gas pipe industry, and the taper is specified as 1: 16. National standards can be found in GB/T7306-2000.

G is a 55-degree non-threaded sealing pipe thread, which belongs to the thread family of Wyeth pressure sensor. Mark G for cylindrical thread. National standards can be found in GB/T7307-2001.

M is a metric thread, for example, M20* indicates a diameter of 20mm and a pitch of 0. If the customer has no special requirements, the pressure sensor produced by Yuyang Company is generally M20* thread. In addition, the 1/4, 1/2 and 1/8 marks in the thread refer to the diameter of the thread size in inches. People in the industry usually call thread size minutes, one inch equals 8 minutes, 1/4 inch equals 2 minutes, and so on. G seems to be the general name of pipe thread (Guan), and the division of 55 and 60 degrees is functional, commonly known as pipe circle. The thread is machined from a cylindrical surface.

ZG is commonly known as the pipe cone, that is, the thread is machined from a conical surface, and the general water pipe pressure joints are like this. The metric thread marked as Rc in the old national standard is expressed by the pitch, and the thread made in the United States and Britain is expressed by the number of threads per inch. This is the biggest difference between the threads of pressure sensors. The metric thread is 60-degree equilateral, the British thread is 55-degree isosceles, and the American thread is 60-degree. Metric threads use metric units, and American and British threads use English units.