Views: 3 Author: Site Editor Publish Time: 2016-09-29 Origin: Site
What is the welding flange?Butt welding flange including long neck butt welding on the surface of the flange, butt welding with neck tu flange, butt welding neck flange products and so on, it is mainly used Yu Falan and counterpart of the pipe welding, its structure is reasonable, the strength and stiffness is bigger, can stand high temperature, high pressure and repeated bending and temperature fluctuations;And its reliable sealing performance, nominal pressure of 0.25 ~ 2.5 MPa butt welding flange sealing surface concave and convex type is adopted.
Informally, butt welding flange is with a neck and a circular tube transition and pipe butt welding flange.Is one of the flange pipe butt welding flanges, in different areas and are widely used in industry and the promotion, it's different in use applicable scope, need to use the environment is also different, according to certain conditions are needed to use.
Butt welding flange is suitable for the nominal pressure of not more than 2.5 MPa steel pipe connection, plays an important role in pipeline links and value, but in use must ensure that the nominal pressure in a certain range.Butt welding of the flange sealing surface can be made into smooth type, concave and convex type and mortise type three, smooth type butt welding flanges are the biggest, in the condition of medium is more moderate cases, such as suit low circulating water, the purification of compressed air, and it has the advantage of the price is cheaper.Butt welding line of flange are suitable for pressure or temperature fluctuations or high temperature, high pressure and low temperature pipes, also used to transport is expensive, inflammable, explosive medium on the pipeline.
At present, has widely used in pipe butt welding flange and the promotion, because the scope of application and using environment is different, therefore, need to be carried out in accordance with the corresponding ways and methods to use.
For welding flange for more condition contrast medium environment, such as suit low circulating water, the purification of compressed air, and its advantage compared to cheaper price.Butt welding of flange sealing surface can be divided into smooth type, concave and convex type and mortise type 3 kinds.Smooth type butt welding flange of a wide range of applications, the other two ways of butt welding of flange in the use of contrast.Butt welding flange of reasonable structure, strength and stiffness is bigger, can withstand high temperature and high pressure, repeated bending and temperature fluctuations and other harsh environment, and also won't drop sealing performance.