Pressure sensor thread type

There are many types of pressure sensors, but the most common NPT, PT, G, and M are pipe threads.

NPT is an abbreviation of National (American) PipeThread, which belongs to the American pressure sensor standard 60 degree taper thread, used in North America. National standards can be found in GB/T12716-1991.

PT is the abbreviation of PipeThread. It is a 55 degree sealed taper thread and belongs to the family of the Wyeth pressure sensor thread. It is mostly used in European and Commonwealth countries. Commonly used in the water and gas pipe industry, taper is specified as 1:16. National standards can be consulted GB/T7306-2000.

G is a 55 degree non-threaded seal pipe thread and is a family of Wyeth pressure sensor threads. Marked as G for cylindrical threads. National standards can be consulted GB/T7307-2001.

M is a common metric thread, such as M20* indicates that the diameter is 20mm. If there is no special request from the customer, the pressure sensor produced by Yuyang 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 and the unit is inches. The in-line person usually uses the thread to call the thread size, one inch is equal to 8 points, 1/4 inch is 2 points, and so on. G seems to be the collective name for pipe thread (Guan). The division of 55 and 60 degrees is a functional one, commonly known as a pipe. The thread is machined from a cylindrical surface.

ZG is commonly known as the tube cone, that is, the thread is processed by a conical surface. The general water pressure connector is like this, the old national standard is marked as Rc.

The metric thread is represented by the pitch, and the U.S. and British threads are expressed by the number of thread teeth per inch. This is the largest difference between the pressure sensor threads, the metric thread is a 60-degree equal-edged type, and the English-made thread is an isosceles 55-degree type, American thread 60 degrees. The metric thread is in metric units and the United States and British thread in imperial units.

The pipe thread is mainly used for the connection of the pressure pipe, and the internal and external threads of the pipe thread are closely matched. The pressure sensor pipe thread has two kinds of straight pipe and tapered pipe. The nominal diameter refers to the diameter of the connected pressure pipe. Obviously the diameter of the thread is larger than the nominal diameter. 1/4, 1/2, 1/8 is the nominal diameter of the inch thread, in inches.