Elbow is a common connection pipe used to change the direction of the pipeline. According to the angle, there are generally three commonly used types: 45°, 90°, and 180°. Of course, according to the needs of the project, there are 60°, etc. Abnormal angle elbow. There are many elbow materials, such as cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics, etc., and various materials are used.
Elbow Dimensions – Classification
Generally speaking, elbows can be divided into long-radius elbows and short-radius elbows according to their radius of curvature. The long radius elbow refers to the outer diameter of the pipe whose radius of curvature is equal to 1.5 times, that is, R=1.5D; the short radius elbow refers to that its radius of curvature is equal to the outer diameter of the pipe, that is, R=1.0D. Here D represents the diameter of the elbow, and R represents the radius of curvature.
Elbow is often used for pipeline installation and connection, connecting two pipes with the same or different nominal diameters to make the pipeline turn at a certain angle. There are many different specifications and models of elbows, and the dimensions of elbows with different angles are also very different. The size of ordinary elbows is generally 450*450pix, while the size of larger elbows is 630*500pix. Of course, specific problems need to be analyzed in detail.
Stainless steel elbow size
Stainless steel elbows are elbows made of stainless steel, the biggest difference between stainless steel elbows and other material elbows is that the chemical composition it contains will keep the surface of the elbow from rusting for a long time and will not be damaged. Corrosion, so the service life is longer. The size of the stainless steel elbow is basically the same as that of the standard elbow, and there is not much difference.
Stainless Steel Elbow Dimensions – Introduction
Stainless steel is usually made of carbon steel with a high proportion of Cr, Ni and other alloys added, and its content can reach more than 20%. Common steel grades are 304, 304L, 321, 316, 316L, 1Cr18Ni9Ti, 0cr18ni9. The first several steel grades represented by numbers are Japanese and American steel grades, and the last one (1Cr18Ni9Ti) is the domestic steel grade representation method.
The strength of stainless steel elbow is very high, and its toughness index is the best among all kinds of steel. Since it is called stainless steel, its most prominent advantage is corrosion resistance. Stainless steel must be used in highly corrosive occasions such as chemical papermaking. Of course, the cost of using stainless steel is relatively high!
90-degree elbow size
The size of the 90-degree elbow is generally calculated according to the diameter of the known pipe, and the bending radius is often 1.5 times the diameter. Depending on the model, the size of the 90-degree elbow is different, and its length and radius are also different. The larger the nominal diameter of the 90-degree elbow, the larger its size.
See the following Longtaidi Elbows: