Production technology of large caliber pipe fitting elbow

　　Large-caliber pipe fitting elbow generally refers to the diameter in DN600 or more, large-caliber pipe fitting elbow including large-caliber straight seam elbow, large-caliber pipe fitting elbow.

　　Large-caliber pipe fitting elbow generally refers to the diameter in DN600 or more, large-caliber pipe fitting elbow including large-caliber straight seam elbow, large-caliber seamless butt welding elbow. The most commonly used on the market are butt welding pipe fitting elbows, straight seams and seamless in large caliber in addition to raw materials and equipment technology, and is more expensive.

　　Large-caliber pipe fitting elbows can be divided into 45-degree large-caliber pipe fitting elbows according to the angle, 90 Degree Short Radius Carbon Steel Large-Caliber Pipe Fitting Elbow and 180-degree large-caliber pipe fitting elbows and other pipe fitting elbows with different angles. According to the material can be divided into carbon steel large-diameter pipe fitting elbows, stainless steel large-diameter pipe fitting elbows, alloy steel large-diameter pipe fitting elbows.

　　According to the radius of curvature, it can be divided into long radius large caliber elbow and short radius large diameter pipe fitting elbow. The main standard national standard, electric standard, Sinopec standard, marine standard, Japanese standard, American standard and so on. Large diameter pipe fitting elbow has the advantages of smooth inner wall, small heat medium flow resistance, acid and alkali resistance, long service life, easy installation and so on.