Flange, also known as flange rim disc or rim, is a hollow disc-shaped mechanical part used for connecting and disassembling shafts, pipelines, and the body with the head.
Main Classification
Classification by Connection Method
Integral Flange: Usually made and assembled together with the connected equipment, the advantage is that it can ensure high precision of the flange surface, while the disadvantage is that it cannot adjust the Size on site.
Threaded Flange: Connected by machining the inner hole into a threaded pipe, convenient for installation and maintenance, suitable for some sites where welding is prohibited.
Flat Welding Flange: The pipe is inserted into the hole of the flange and welded for assembly, which is relatively economical and widely used.
Loose Flange: Can be rotated, facilitating the adjustment of bolt hole alignment, easy to install when installing large-diameter pipelines, and very suitable for pipelines that need to be frequently disassembled for cleaning and inspection.
Classification by Sealing SurfaceCan be divided into flat, convex, concave-convex, tongue-and-groove, and ring connection surfaces, etc.
Classification by Manufacturing MaterialIncludes cast iron flanges, steel flanges, plastic flanges, copper flanges, etc.
Classification by Operating PressureCan be divided into low-pressure flanges (nominal pressure not exceeding 1.6MPa) and high-pressure flanges (used to withstand higher nominal pressure working conditions, usually in the range of 10~42MPa).
Product Material
Includes stainless steel, ordinary carbon steel, high-quality carbon steel, low-alloy steel, hard polyvinyl chloride plastic board, high-density polyethylene, etc.
Product Features
Good sealing performance: Using the principle of surface sealing, through the close fit of the flange, gasket, and bolts, effectively prevents medium leakage, ensuring the safe and stable operation of the production process.
High connection strength: Able to tightly connect equipment such as pipelines, valves, pumps, and containers, withstand large pressure and tension, ensuring the integrity and stability of the system.
Easy installation: Depending on different connection methods and structural characteristics, the installation process of the flange is relatively simple, highly operable, and can reduce labor, material, and time costs.
Convenient disassembly and replacement maintenance: When cleaning, repairing, or replacing equipment or pipelines, flange connections are easy to disassemble, facilitating operations for maintenance personnel, reducing downtime and maintenance costs.
Applications
Flanges play an important role in fields such as chemical engineering, construction, petroleum, shipbuilding, light and heavy industry, plumbing, and electricity.
Hongya Machinery Parts Co., Ltd. is located in the southern industrial zone of Renqiu City, at the center of the Beijing-Tianjin-Shijiazhuang economic circle. The transportation is convenient, the environment is beautiful, and the geographical location is unique.
Our factory adheres to the principle of "seeking development with credibility and survival with quality," continuously developing in the increasingly fierce market competition. The production equipment is constantly improving, and the quality assurance system is continuously being perfected.
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Key words:
Flat welding flange
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