Four-way

Four equal diameter pipe fitting, both ends of the diameter of the same, branch pipe and other two diameters different known as four reducing diameter. For four equal diameters, for example, "T3" four means four equal diameters of three inches. For reducing four passes, such as "T4 x 4 x 3.5" means reducing four passes with the same diameter of four inches. The material is generally 10# 20# A3 Q23 20g 20g 16Mn ASTM A234 ASTM A105 ASTM A403, etc., with four passes, the outer diameter range is 2.5 "-60", and the welding four passes are from 26 "-60". Wall thickness of 28-60 mm. The pressure level is Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s and XS. Sch80, Sch100, Sch120, Sch140, Sch160, XXS.

The four links are pipe fitting and pipe fitting. Also known as pipe pieces four or four-way pipe pieces, four-way joint, used in the main pipeline to branch pipe.

The four-way pipe fitting is divided into equal diameters and reducing diameters. The size of the four-way pipe is the same, while the size of the branch pipe is smaller than the size of the pipe.

The four-way pipe fitting is a kind of pipe fitting for the branch of pipe. For making sitong with seamless tube, two kinds of technology are usually used at present: hydraulic bulging and hot pressing.