BS 4504 PN16 CODE 111 A105 Q235 Carbon Steel And SS304 SS316 Stainless Steel Weld Neck Flanges For Industrial Purposes

BS 4504 PN 16 Code 111 Carbon Steel and Stainless Steel Weld Neck Flanges for Industrial Purposes

Introduction:

We are Shaanxi Peter International Trade Co., Ltd., a reputable and well-established company of rich experience in the industry. As your reliable supplier, we have been providing high-quality BS4504 WELD NECK FLANGES for more than 20 years in the industry.

Our BS4504 weld neck flanges are designed to meet the specifications of BS4504 and are made of durable materials, ensuring their high strength and resistance to corrosion. As one of the most widely used types of flanges, our weld neck flanges are suitable for use in various industries, including petroleum, natural gas, chemical, power generation, and more.

At Shaanxi Peter International Trade Co., Ltd., we prioritize customer satisfaction above all else. We understand the importance of providing reliable and durable products that meet the diverse needs of our clients. Our dedicated team of professionals works tirelessly to ensure that every weld neck flange leaving our facility meets the highest quality standards.

We pride ourselves on our commitment to continuous improvement and innovation. Our manufacturing process incorporates advanced technologies and techniques to ensure precise dimensions, excellent surface finishes, and superior corrosion resistance. By investing in state-of-the-art equipment and employing skilled technicians, we can guarantee the consistent quality of our BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges.

Description of BS4504 Weld Neck Flanges:

BS4504 Weld neck flanges are widely considered the most popular type of flange due to their unique design featuring a neck extension with a weld bevel at the end. These flanges are specifically engineered to be butt-welded directly to pipes, resulting in a superior and seamless connection. In larger sizes and higher pressure classes, the weld neck flange is predominantly used as the preferred flange connection.

In fact, if there were only one type of flange available in modern applications, the BS4504 weld neck flange would undoubtedly be the top choice. Its design and functionality make it highly desirable for a wide range of industrial applications. The weld neck flange's ability to provide a reliable, leak-free, and durable connection between pipes is unparalleled.

The BS4504 weld neck flange's weld bevel and neck extension allow for a smooth and natural transition from the pipe to the flange. This seamless connection minimizes turbulence and pressure drop within the piping system, making it ideal for applications where efficiency and flow performance are critical.

Furthermore, the weld neck flange's design offers excellent structural integrity and helps distribute mechanical stresses evenly, making it suitable for high-pressure and high-temperature environments. The BS4504 weld neck flange's robust construction ensures long-lasting performance and minimizes the risk of leakage or failure.

BS4504 Weld Neck Flange Dimensions:

1.Dimensions are in millimeters(mm).

2.Dimensions can be specified by different purchasers.

Materials of BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges:

BS4504 weld neck flanges are available in various materials to suit different applications and operating conditions. The material selection for BS4504 weld neck flanges depends on factors such as temperature, pressure, corrosion resistance, and compatibility with the conveyed fluid or gas.

Some Common Grades of Carbon Steel:

ASTM A105: This is a common grade of carbon steel used for weld neck flanges. It is a forged carbon steel specifically designed for high-temperature service and offers excellent weldability and toughness.

ASTM A350 LF2: LF2 is a low-temperature carbon steel grade commonly used for weld neck flanges in applications where low-temperature toughness is required.

ASTM A694 F52/F60/F65/F70: These grades are high-yield carbon steel materials used for weld neck flanges in applications requiring high strength and impact resistance.

Some Common Grades of Stainless Steel:

ASTM A182 F304/F304L: These grades of stainless steel are austenitic and commonly used for weld neck flanges. They offer good corrosion resistance, excellent weldability, and are suitable for a wide range of applications.

ASTM A182 F316/F316L: Similar to F304/F304L, these grades are also austenitic stainless steels with improved corrosion resistance, particularly in chloride environments.

ASTM A182 F321: F321 is an austenitic stainless steel grade containing titanium, which provides enhanced resistance to intergranular corrosion. It is often used for weld neck flanges in high-temperature applications.

ASTM A182 F347: F347 is a stabilized stainless steel grade with the addition of niobium, which improves its resistance to intergranular corrosion. It is commonly used for weld neck flanges in applications involving elevated temperatures.

Advantages of BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges:

BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges offer several advantages that make them a popular choice for connecting pipes in various industries. Here are some key advantages of these flanges:

Strong and Durable Connection: Weld Neck Flanges provide a strong and reliable connection between pipes. The welding process creates a permanent joint that can withstand high pressures, temperatures, and mechanical stresses. They offer excellent resistance to leakage and ensure long-term durability.

High Temperature and Pressure Resistance: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are designed to withstand elevated temperatures and high-pressure conditions. Carbon steel flanges have good heat resistance and can handle high-temperature applications, while stainless steel flanges offer excellent corrosion resistance and can withstand aggressive environments.

Leakage Prevention: Weld Neck Flanges have a tapered hub and a neck that extends into the pipe, which helps in reducing turbulence and flow resistance. The design of the flange, combined with the use of a gasket, ensures a tight and leak-free seal. This makes them suitable for applications where leakage prevention is critical.

Enhanced Structural Integrity: The extended neck of the Weld Neck Flange provides reinforcement to the pipe and improves the overall structural integrity of the connection. This feature is especially beneficial in applications where the pipe is subjected to higher stresses, vibrations, or bending moments.

Easy Alignment: Weld Neck Flanges are relatively easy to align during installation. The long neck of the flange allows for easy access and space for welding, ensuring proper alignment of the pipe and flange. This makes the installation process more efficient and reduces the chances of misalignment.

Versatility: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges come in a wide range of sizes, pressure ratings, and materials. This versatility allows for compatibility with different pipe sizes and applications. They can be used in various industries, including oil and gas, chemical processing, power generation, water treatment, and more.

Interchangeability: Weld Neck Flanges manufactured according to the BS4504 standard offer interchangeability and compatibility with other flanges manufactured to the same standard. This facilitates easy replacement or modification of flanges without the need for extensive modifications to the piping system.

How to install weld neck flanges:

Installing weld neck flanges requires careful attention to ensure a proper and secure connection. Here are the general steps to follow for weld neck flange installation:

Preparation: Ensure that the pipe ends and flange surfaces are clean and free from dirt, debris, and contaminants. Check that the flange and pipe are of the correct size and material, and verify that they are compatible.

Alignment: Align the flange with the pipe, ensuring that the bolt holes on the flange match the ones on the pipe. The weld bevel on the flange should be aligned with the beveled end of the pipe.

Welding: Tack weld the flange to the pipe at several points around the circumference. These tack welds hold the flange in place during the final welding process.

Welding Neck: Weld the neck of the flange to the pipe using the appropriate welding technique (e.g., TIG or MIG welding). Follow the recommended welding procedures and ensure proper penetration and fusion between the flange and pipe.

Weld Quality: Inspect the weld for any defects, such as cracks, incomplete penetration, or excessive porosity. Ensure that the weld meets the required quality standards and specifications.

Post-Weld Treatment: After welding, perform any required post-weld treatments, such as heat treatment or stress relieving, as specified by the applicable codes and standards.

Bolting: Once the weld is complete and the flange-to-pipe connection is secure, proceed with bolting the flange to the mating flange or equipment. Use appropriate gaskets and bolts/nuts, following the recommended tightening sequence and torque values specified by the flange manufacturer or industry standards.

Inspection and Testing: Inspect the completed installation for any visible defects, such as misalignment or leaks. Perform pressure testing, if required, to ensure the integrity and reliability of the flange connection.

Applications of BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges:

BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are commonly used in various applications where a strong and leak-free connection between pipes or equipment is required. Here are some typical applications of these flanges:

Oil and Gas Industry: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are widely used in the oil and gas industry for connecting pipes, valves, and equipment in upstream, midstream, and downstream operations. They are suitable for applications such as oil and gas pipelines, refineries, petrochemical plants, and offshore platforms.

Power Generation: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges find extensive use in power generation facilities, including thermal power plants, nuclear power plants, and renewable energy installations. They are used to connect pipes and fittings in steam lines, condenser systems, and other high-pressure and high-temperature applications.

Chemical and Petrochemical Industry: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are commonly employed in chemical processing plants, petrochemical refineries, and chemical storage facilities. They are used in applications involving corrosive fluids, high temperatures, and high-pressure conditions.

Water and Wastewater Treatment: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are used in water treatment plants, wastewater treatment facilities, and desalination plants. They are suitable for connecting pipes and equipment in water supply systems, sewage systems, and various treatment processes.

HVAC and Plumbing Systems: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are utilized in heating, ventilation, and air conditioning (HVAC) systems, as well as plumbing installations. They provide a secure connection for pipes carrying hot or chilled water, steam, or other fluids in commercial buildings, residential complexes, and industrial facilities.

Food and Beverage Industry: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges are used in the food and beverage industry for hygienic and sanitary applications. They are suitable for connecting pipes in processing plants, breweries, dairies, and other food production facilities.

Pharmaceutical Industry: BS4504 Carbon Steel and Stainless Steel Weld Neck Flanges find application in the pharmaceutical industry, where sanitary and sterile conditions are essential. They are used in pharmaceutical manufacturing plants and laboratories to connect pipes and equipment for the production of medicines and drugs.