A flat face weld neck flange is a crucial piping component. It features a flat sealing surface and a long, tapered hub. The flat face is designed to mate with other flanges, creating a seal with the help of gaskets and bolts. The tapered hub is butt-welded to the pipe, offering a smooth and continuous connection. This design provides excellent mechanical strength, resisting "dishing" and "bowing". It's suitable for high-pressure and high-temperature applications, reducing turbulence and erosion in pipelines. Manufactured from materials like carbon steel and stainless steel, it complies with standards such as ASME B16.5.
High Strength: The welded neck design of the flat face weld neck flange provides excellent strength, enabling it to withstand high-pressure and high-temperature conditions, making it suitable for high-stress applications.
Good Leak Resistance: With precise welding technology, it can form a tight seal with the pipe, effectively minimizing the risk of leakage and enhancing the safety of the piping system.
Reduced Stress Concentration: The smooth transition from the flange to the pipe reduces stress concentration, which helps prevent cracks and failures in the flange and pipe connection.
Accurate Alignment: It facilitates the precise alignment of pipes, resulting in better fluid flow, reduced turbulence, and improved overall system efficiency.
High Durability: These flanges are highly resistant to wear, corrosion, and erosion, thus having a longer service life and requiring less frequent replacement.
Low Maintenance: Thanks to their reliable performance and fewer chances of leaks and failures, the maintenance costs of flat face weld neck flanges are relatively low.
In terms of sealing surface forms, although it is a flat face weld neck flange, in practical applications, it can be further divided into different types according to relevant standards and usage requirements. For example, in some standards, there may be subtypes with different pressure ratings or sizes. Besides, from the material perspective, it can be classified into carbon steel flat face weld neck flanges, stainless steel flat face weld neck flanges, alloy steel flat face weld neck flanges, and so on.
Oil and Gas Industry: It is widely used in oil and gas pipelines to connect various pipe sections and equipment, such as wellhead equipment, gathering pipelines, and transportation pipelines, as it can withstand high pressure and the erosion of oil and gas media.
Chemical Industry: In chemical plants, it is used to connect pipes carrying various chemical media. It can resist the corrosion of chemical substances and ensure the safe operation of the pipeline system under high-pressure and high-temperature conditions.
Power Industry: It is used in power plants, including thermal power plants and nuclear power plants, for the connection of steam pipelines, water supply and drainage pipelines, and other systems. It can bear high temperatures and pressures and has good sealing performance.
Marine Industry: In the piping systems of ships, such as fuel pipelines, cooling water pipelines, and compressed air pipelines, flat face weld neck flanges are used to ensure the reliability and tightness of the connections.
Pharmaceutical Industry: In the pharmaceutical production process, it is used in the piping systems for transporting various pharmaceutical raw materials and products, meeting the requirements of high cleanliness and tightness.
Carbon Steel: Carbon steel flat face weld neck flanges have good strength and toughness, and are relatively low in cost. They are suitable for general working conditions, such as low to medium pressure and normal temperature environments.
Stainless Steel: Such as 304, 316, 304L, 316L, etc. Stainless steel flanges have excellent corrosion resistance and high temperature resistance, which are suitable for occasions where the medium is corrosive or the working environment is harsh, such as the chemical industry and the food industry.
Alloy Steel: Alloy steel flanges, which contain elements such as chromium, molybdenum, and vanadium, have higher strength, hardness, and heat resistance. They are often used in high-pressure, high-temperature, and high-stress applications, such as in some petrochemical and power generation equipment.
Non-ferrous Metals: Such as aluminum and copper. Aluminum alloy flanges have the advantages of light weight and good corrosion resistance, which are suitable for some occasions with special requirements such as in the aerospace industry and some corrosive environments. Copper flanges have good thermal conductivity and electrical conductivity and are used in some special piping systems that require these properties.
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Q: Where is your factory located?
A: Zhanqi Town, Ningbo, Zhejiang Province, China
Q: What is the delivery time of your machine?
A: 30 days in general.
Q: About the after-sale service, how can you solve the problems occurred of your overseas customer in time?
A: The warranty of our machine is normally 12 months, during this period, we will arrange the international express immediately, to make sure the replace parts to be delivered as soon as possible.
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