A flange, also known as a flange, is a general term that usually refers to several fixed holes around a metal body with a similar disk shape for connecting other things. This thing is widely used in machinery, so its posture is also varied. As long as it is called a flange, its name comes from the English word 'flange'. The parts that connect pipes to each other are connected to the ends of the pipes. There are holes on the flange, and bolts tightly connect the two flanges. Seal the flanges with gaskets. Flanges are a type of disc-shaped component commonly found in pipeline engineering, and are used in pairs.
In pipeline engineering, flanges are mainly used for the connection of pipelines. Install a flange at each end of the two pipelines that meet the requirements. For low-pressure pipelines, threaded flanges can be used, and for pressures above 4 kilograms, welded flanges can be used. Add a sealing gasket between the two flanges and tighten them with bolts.
Flanges with different pressures have different thicknesses and use different bolts.
When connecting water pumps and valves with pipelines, the corresponding flange shapes are also made for the parts of these equipment, also known as flange connections.
Any connecting component that uses bolts to connect and close two planes at the periphery is generally called a "flange", such as the connection of ventilation ducts, which can be called a "flange type component".
Threaded flange is a type of flange. The threaded flange connection structure is a composite component consisting of a pair of flanges, several bolts, nuts, and a gasket.
Welding flange: This welding flange is similar to a sliding flange, but with threaded holes. Its main advantage is that it can be assembled without welding, creating a danger for welding in ordinary applications of atmospheric temperature in low-pressure services and highly explosive areas.
Sliding on the flange: The sliding flange has a lower hub due to the pipeline entering the single flange before welding. This provides sufficient strength for both internal and external welding to prevent leakage. Sliding flanges are designed to match slightly larger outer diameter pipes. They are superior to neck flanges in welding, as the initial cost is lower for many users, but the installation cost is unlikely to be comparable due to the addition of fewer welding neck flanges.
Overlapping flange: Overlapping flanges are actually identical sliding flanges, unless they are within a radius between the hole and the flange race. This is the required radius with flange to accommodate overlapping stubs completed. Usually, overlapping flanges and overlapping stubs are mated together at the end of the month to assemble the system.
The socket welding flange is a similar sliding flange, unless it has a hole and a reverse hole size. Counter hole slightly beer than O D. Match the pipeline to pierce into a sliding flange similar to the flange. Matching pipes with the same ID and diameter in smaller holes. Constraints are built-in holes designed specifically for pipe shoulders to stay at the bottom. This eliminates any flow constraints when using socket welding flanges.
