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1/4, 1/2, 1/8 mark in the size of thread of king combination nipple refers to the thread diameter, whose unit is inch

Source： Notetime： 2013-09-09 11:33:31 click： 2827

　　Another1/4, 1/2, 1/8 mark in the size of thread ofking combination nipple refers to the thread diameter, whose unit is inch.

　　People in this industry often use "points" to distinguish Thread Size, an inch is equal to 8 points, 1/4 inch is 2 points, and so on.

　　G is the collectively of pipe thread (Guan) in king combination nipple, 55,60 degree division is functional in nature, commonly known as a round tube. Threaded by a cylindrical surface processing.

　　ZG commonly known as Cone, Threaded by a conical surface machining, pipe joints in general are like this, the old standard for the Rc domestic thread external thread is R

　　Metric thread in king combination nipple uses pitch to express, the thread is represented by the number of threads per inch, which is their biggest difference,

　　Metric thread in king combination nipple is 60 degrees equilateral tooth type, metric screw thread is isosceles 55 teeth, thread 60 degrees.

　　Metric thread uses metric unit, American and English thread uses English thread.

　　Pipe thread in king combination nipple is mainly used for connecting pipe, its internal and external thread is close, having straight tube and cone tube. Nominal diameter is the diameter of the connected pipe, apparently thread diameter larger than the nominal diameter.

　　1/4, 1/2, 1/8 is the nominal diameter of the thread, the unit is in.

from：http://www.bauercoupling.com/newsd-nid-76.html