Carbon Steel Filler Flange

Flanges are disk-shaped parts, the most common in pipeline engineering, flanges are used in pairs and with matching flanges on valves. In pipeline engineering, flanges are mainly used for pipeline connection. In the need to connect the pipe, a variety of mounting flanges, low pressure pipes can use wire flanges, more than 4 kg of pressure using welded flanges. Put a gasket between the two flanges and fasten them with bolts. Different pressure flanges have different thicknesses and use different bolts.

Pumps and valves, when connected with pipelines, the local parts of these equipment are also made into corresponding flange shapes, also known as flange connections. All the connecting parts that are closed at the same time using bolt connection in the periphery of two planes are generally called "flanges", such as the connection of ventilation pipes, this type of part can be called "flanged parts". However, this connection is only a part of the equipment, such as the connection of the flange and the pump, it is not good to call the pump "flange parts". Relatively small such as valves, etc., can be called "flange parts".

A gasket is a ring made of material that can produce plastic deformation and has a certain strength. Most gaskets are cut from non-metal plates, or made by professional factories according to the specified size, the material is asbestos rubber sheet, asbestos board, polyethylene board, etc. It is also used to wrap metal gaskets made of non-metallic materials such as asbestos with thin metal plates (sheet iron, stainless steel); There is also a winding gasket made of thin steel tape and asbestos tape wound together. Ordinary rubber gasket is suitable for occasions where the temperature is below 120℃; Asbestos rubber gasket is suitable for water vapor temperature below 450℃, oil temperature below 350℃, pressure below 5MPa occasions, for general corrosive media, the most commonly used is acid-resistant asbestos board. In high pressure equipment and pipelines, the use of copper, aluminum, No. 10 steel, stainless steel made of lens type or other shapes of metal gaskets. The contact width between the high pressure gasket and the sealing surface is very narrow (line contact), and the processing finish between the sealing surface and the gasket is high.

Low pressure small diameter wire flange, high pressure and low pressure large diameter are welded flange, different pressure flange thickness and connection bolt diameter and number are different.

fold