Use advantages of large flanges.

Large flanges will have different use value in the process of use, and have different types of effect and use. Large flange material is different, the production and processing technology is different, so be especially careful when in use and processing of large flange method, according to certain procedures and methods for use.

Large flange common large flange has flat welding large flange and welding large flange. The rigidity of flat welding large flange is poor, and the application range is the situation where pressure p is less than 4MPa. Welding large flange is also called high neck large flange, rigid, suitable for high pressure temperature situation. There are three types of large flange sealing surface: plane-type sealing surface, suitable for occasions where pressure is not high and medium is not toxic. Embossed cover for slightly higher pressure situations; Mortise sealing surface, suitable for flammable, explosive, toxic media and high pressure occasions. Large flanged pipe fittings with different properties have good product performance in different fields, and different occasions and Spaces will produce different effects.

The gasket of large flange is a kind of ring which can produce plastic deformation and have certain strength. Most of the gaskets are cut from non-metal plates, or are made by professional factories according to the specified dimensions, and their materials are asbestos rubber sheets, asbestos boards, polyethylene plates, etc. It is also useful for wrapping metal gaskets made of asbestos and other non-metallic materials, such as sheet metal and stainless steel. There is also a wound gasket made of thin steel strips with asbestos tape.

Large flanges are used in high pressure equipment and pipelines, using lens or other shaped metal gaskets made of copper, aluminum, 10 steel, stainless steel. The contact width of the high pressure gasket and sealing cover of large flange is very narrow (line contact), the sealing surface and gasket are highly polished.

The large flange connection is mainly used for the connection of cast iron pipe, liner, non-ferrous metal tube and large flange valve, and the connection of process equipment and large flange is also connected with large flange.

Feature of the large flange connection is convenient disassembly, high strength, good seal performance, installing a large flange requires two large flange remain parallel, large flange sealing surface can't touch, and to clean up. Gaskets for large flanges shall be selected according to the design requirements.

Large flange connection is an important connection method for pipeline construction.

Large flange threaded connection (wire) large flange and welding large flange. Low pressure small diameter wire connect large flange, high pressure and low pressure of large diameter used welding large flange, large flange thickness and different pressure connection bolt diameter and the number is different, according to the different levels of pressure, large flange gasket also have different material, from the low pressure asbestos pad, high-pressure asbestos pad to metal pads.