Large diameter elbow

The large diameter elbow generally refers to the diameter of the diameter of more than DN600, the large diameter bend includes the straight end of the elbow, the large diameter seamless elbow welding elbow. In the market, more is the welding elbow, straight seam and seamless in large diameter except in the raw material equipment technology, and then the price is more expensive. The large diameter elbow can be divided into 45 degrees with large diameter bend, 90 degrees of large diameter bend and 180 degree Angle and other angles of different angles. According to the material can be divided into carbon steel large diameter elbow, stainless steel large diameter elbow, alloy steel large diameter bend. According to the radius of curvature can be divided into long radius large diameter elbow and short radius large diameter elbow. Main standard national standard, electric standard, sinopec standard, Marine standard, daily standard, American standard, etc. The large diameter elbow has the advantages of smooth internal wall, low resistance of heat medium, long service life and convenient installation.

The large diameter elbow belongs to the technical field of metal pipe fitting, which can solve the problem of short service life of large diameter elbow. It is the main body of the large diameter thin wall, which is joined by a weld in the lateral body of the main body of the large diameter thin wall. Its novel structure, high crushing strength, long service life, manufacturing save materials, low production cost, wide application range, suitable for chemical, oil, electricity, gas and other industries, especially applies to low temperature under the condition of high pressure gas transmission pipeline, a new type of large diameter bend.

An ELBOW is a pipe that connects two common nominal sizes or different tubes in a piping system to make the pipe bend at a certain Angle.

Classification of large bore corners:

1. According to the point of view points, commonly used have 45 °, 90 ° and 180 ° three, according to the requirements of the project also includes 60 °, and other abnormal Angle of large diameter bend.

2. According to the production process, it can be divided into: welding large diameter elbow, stamping large diameter elbow, casting large diameter bend, etc.

3. According to the radius of curvature to points: can be divided into the length of large diameter bend radius and short radius of large diameter bend, large diameter long radius elbow refers to its radius of curvature is equal to 1.5 times the outer diameter of tube, R = 1.5 d. short radius of large diameter bend refers to its radius of curvature is equal to the pipe diameter, R = 1.0 D. (for large diameter bend diameter D, R for the radius of curvature).