Stainless steel flange

It is a disc-shaped part that is most common in pipeline engineering. The flanges are used in pairs and with the matching flanges on the valve. In plumbing, flanges are primarily used for pipe connections. In the pipelines that need to be connected, a variety of flanges are installed. The low-pressure pipelines can use wire-bonded flanges, and the welding flanges are used at pressures above 4 kg. A gasket is placed between the two flanges and then bolted. Different pressure flanges have different thicknesses and use different stainless steel flange picture stainless steel flange picture bolts.

Pumps and valves, when connected to the pipeline, the parts of these equipment are also made into the corresponding flange shape, also known as flange connection. Connection parts that are closed at the same time by bolting on both planes are generally referred to as "flanges". For example, the connection of ventilation ducts may be referred to as "flange parts". However, this connection is only a part of the equipment, such as the connection between the flange and the water pump, it is not good to call the pump "flange parts". Smaller such as valves, etc., can be called "flange parts".

A gasket is a ring made of a material that is plastically deformed and has a certain strength. Most of the gaskets are cut from non-metal plates or made by professional factories according to the specified size. The materials are asbestos rubber sheets, asbestos sheets, polyethylene sheets, etc.; asbestos is also used for thin metal sheets (white iron, stainless steel). Metal-clad gaskets made of non-metallic materials; stainless steel flanged stainless steel flanges also have a wound gasket that is wound with a thin steel strip and an asbestos tape. Ordinary rubber gaskets are suitable for temperatures below 120 °C; asbestos rubber gaskets are suitable for general corrosive applications where the water vapor temperature is below 450 ° C, for oil temperatures below 350 ° C and pressures below 5 MPa. Medium, the most commonly used is acid-resistant asbestos board. In high-voltage equipment and pipelines, lens or other shapes of metal gaskets made of copper, aluminum, 10 steel, stainless steel are used. The contact width between the high pressure gasket and the sealing surface is very narrow (line contact), and the sealing surface and the gasket have a high processing finish.

Low-pressure small-diameter wire-bonded flanges, high-pressure and low-pressure large diameters are all welded flanges. The thickness of the flanges of different pressures and the diameter and number of connecting bolts are different.