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| Customization: | Available |
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| Standard: | ANSI, DIN, GB, JIS, GOST, BSW |
| Type: | Welding Flange |
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| Structural Features | Butt-welding flanges are usually composed of a flange disc, a neck, and a welding groove. The necked structure can increase the strength and stability of the connection between the flange and the pipeline, and reduce the concentration of welding stress. The design of its welding groove is convenient for butt-welding connection with the pipeline, which can ensure the tightness and strength of the connection. |
| Working Principle | By performing butt welding between the welding groove of the flange and the end of the pipeline, a firm connection is formed. In the pipeline system, the bolt holes on the flange disc are used for installing bolts. By tightening the bolts, the two flanges are closely connected together, thus achieving a sealed connection between the pipelines and bearing the pressure and temperature of the medium inside the pipelines. |
| Application Scenarios | It is widely used in the pipeline systems of industrial fields such as petroleum, chemical industry, natural gas, electric power, metallurgy, pharmaceuticals, and food. It is especially suitable for the pipeline connection of media such as high-temperature, high-pressure, flammable, explosive, toxic, and harmful substances, which can ensure the safe and reliable operation of the pipeline system. For example, butt-welding flanges are widely used in the process pipelines of petrochemical plants, the steam pipelines of power plants, and other situations. |
| Advantages | |
| High strength | Due to the adoption of butt-welding connection, the welding quality is high, and it can withstand relatively high pressure and tensile force, ensuring the safe operation of the pipeline system. |
| Good sealing performance | With the appropriate form of sealing surface and gaskets, a good sealing effect can be achieved to prevent the leakage of the medium. |
| Corrosion resistance | According to different usage environments, butt-welding flanges made of different materials can be selected, such as stainless steel, alloy steel, etc. They have good corrosion resistance and are suitable for pipelines transporting various corrosive media |
| Convenient installation | Compared with other connection methods, the installation of butt-welding flanges is relatively convenient. It only requires welding the flange to the pipeline and fixing it through bolt connection. |









Dingxiang Jinyu Forging Co., Ltd. is located in Dashagou Village, jiangcun Township, Dingxiang County, Xinzhou,known as the "hometown of Chinese forging", with a registered capital of 5 milion yuan. Superior geographical location, 100 kilometers away from the provincial capital Taiyuan, with convenient and fast road and railway transportation. Rich in coal, electricity, and iron resources, we are a professional manufacturer of forged fanges and pressure vessel forgings; We have the ability to integrate design, raw material procurement, cutting, forging, heat treatment, machining, mechanical testing, non-destructive testing, mechanical typing, painting, packaging, and shipping operations. The annual production capacity is over 10000 tons, with specifications ranging from DN15 to DN6000mm. The maximum weight per unit of finished products is 20 tons, and the pressure ranges from 150-2500 pounds, including national standards, American standards, British standards, German standards, Japanese standards,and non-standard fanges and forgings.
Q1: Can l obtain samples?