Large caliber elbow

Large caliber elbow

Large caliber elbow belongs to the technical field of metal pipe fittings, which is used to deal with the problem of short service life of existing large caliber elbow.It is a large diameter thin-wall elbow body receiving, in the large diameter thin-wall elbow body on the side of the surface connected with a weld.It has the advantages of novel structure, high compressive strength, long service life, low production cost and wide application scale. It is used in chemical industry, petroleum, electric power, gas transmission and other operations, mainly for high-pressure gas transmission pipeline under low temperature conditions. It is a new type of large-diameter bend.

Large caliber elbow is in the pipeline system, the elbow is adjacent to two pipes of the same nominal diameter or different, so that the pipe must turn the view point of the pipe fitting.

Classification of large caliber elbow:

According to the point of view, there are three kinds of 45 degrees, 90 degrees and 180 degrees in common use. Other certificate projects also include 60 degrees and other large caliber elbows with abnormal points of view.

According to the production process can be divided into: welding large caliber elbow, stamping large caliber elbow, casting large caliber bend number one.

According to the radius of curvature to divide: can be divided into long radius large caliber elbow and short radius large caliber elbow.Long radius large diameter elbow refers to its radius of curvature is 1.5 times the outside diameter of the pipe, i.e. R=1.5D.Short radius large diameter elbow refers to its radius of curvature is the outside diameter of the pipe, that is,R =1.0D.(D is the diameter of large diameter elbow,R is the radius of curvature).

Large caliber elbow is steel hot pressing or forging shaped elbow, the company mainly produces elbow, national standard elbow, non-standard elbow, tee, size, pipe cap and other pipe fittings.The company mainly to the quality of products, so that customers with the centering, we in the quality of finished products strictly control, the customer demand has been in the first place.

Large caliber elbows are mainly used to connect two sections of pipes with different end face radii, or for pipe resizing.This type of elbow generally needs to be produced according to specific engineering requirements or drawings. In addition to conforming to the requirements of the pipe diameter, it is necessary to consider the specific conditions of the pipeline, such as pipeline transportation pressure, fluid viscosity, wear resistance, corrosion, fluid transportation temperature and other factors.Generally, large-caliber elbows are welded at the pipeline construction site, because the welding standards of all kinds of pipelines are different, and on-site welding is required according to the weld level of the pipeline.