The classification of the elbow

The classification of the elbow

According to its radius of curvature to points, can be divided into long radius elbow and short radius elbow. Long radius elbow refers to its radius of curvature is equal to 1.5 times the pipe diameter, R = 1.5 D. Short radius elbow refers to its radius of curvature is equal to the pipe diameter, namely R = D. Type D bend diameter of R for the radius of curvature.

If according to the grades of pressure points, about 17 species, and the United States, the carbon steel pipe standard is the same, there are: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS, one of the most common is two kinds of STD and XS. According to bend Angle, has 45 elbow, elbow bend and 180 90. So there are a lot of kinds of elbow, an order when the order is often said to take the following methods: such as "LR STD 90 8", said the long radius, pressure rating for STD, 8 "elbow; another example," 90 SR XS 45 o 4, "said short radius, the pressure levels for XS, 45 o 4" elbow. More about classification for the elbow.

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