Application scope of large-diameter elbows

　　Large diameter elbows generally refer to those with a diameter of DN600 or above. Large diameter elbows include large diameter seam elbows, large diameter seamless elbows, and butter welded elbows.

　　The most commonly used in the market are butt welded elbows,seams joints, and seamless joints. In terms of large diameters, besides raw material and equipment technology, they are also relatively expensive. Large diameter elbows can be divided into 45 degree large diameter elbows, 90 degree large diameter elbows, 180 degree large diameter elbows, and other pipe elbows with different angles. According to the material, it can be divided into carbon steel large-diameter elbows, stainless steel large-diameter elbows, and alloy steel large-diameter elbows.

　　According to the curvature radius, it can be divided into long radius large-diameter elbows and short radius large-diameter elbows. The main standards for large-diameter elbows include national standards, electrical standards, Sinopec standards, marine standards, Japanese standards, American standards, etc. Large diameter elbows have the advantages of smooth inner walls, low resistance to heat medium flow, acid and alkali resistance, long service life, and easy installation.