ANSI B16.47 SERIES B Class 400 Carbon Steel Weld Neck Flanges and Blind Flanges

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 ANSI B16.47 SERIES B FLANGES for more than 20 years in the industry.

Our ANSI B16.47 SERIES B FLANGES are designed to meet the specifications of ASME B16.47 and are made of durable materials, ensuring their high strength and resistance to corrosion.

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.Our manufacturing process incorporates advanced technologies and techniques to ensure precise dimensions, excellent surface finishes, and superior corrosion resistance.

Descriptions of ANSI/ASME B16.47 SERIES B Weld Neck Flanges and Blind Flanges:

ASME B16.47 is a standard published by the American Society of Mechanical Engineers (ASME) that specifically focuses on large diameter steel flanges with a nominal pipe size of 26 inches and larger. It is divided into two parts: ASME B16.47 Series A and ASME B16.47 Series B.

ASME B16.47 Series A covers weld neck and blind flanges, which have raised face or ring joint face configurations. These flanges have larger bolt circles and smaller bores compared to Series B flanges.

ASME B16.47 Series B, also known as API 605, includes flanges with flat face or raised face configurations. These flanges are commonly used in the petroleum and natural gas industries.

The ASME B16.47 standard provides specifications for dimensions, tolerances, materials, markings, and testing requirements for these large diameter steel flanges. It ensures compatibility and interchangeability of flanges within the specified range. The standard is widely utilized in industries such as oil and gas, petrochemical, power generation, and offshore applications.

ANSI B16.47 SERIES B Weld Neck Flanges and Blind Flanges Dimensions:

1.Dimensions are in millimeters(mm).

2.B1 can be specified by different purchasers.

Features of ASME B16.47 Series B Carbon Steel Weld Neck Flanges and Blind Flanges:

ASME B16.47 Series B is a standard developed by the American Society of Mechanical Engineers (ASME) that specifically addresses large diameter steel flanges. This series focuses on weld neck and blind flanges and provides standardized dimensions, tolerances, materials, and other specifications for these flange types.

Here are some key features and aspects of ASME B16.47 Series B:

Flange Types: ASME B16.47 Series B covers two main types of flanges: weld neck flanges and blind flanges. Weld neck flanges have a long tapered hub that provides reinforcement to the connection between the flange and the pipe. Blind flanges, on the other hand, are solid plates used to close off the end of a pipe or vessel.

Size Range: Series B flanges are designed for large diameter applications, specifically for Nominal Pipe Sizes (NPS) ranging from 26 inches to 60 inches. These flanges are suitable for handling high flow rates and pressures in pipeline systems.

Pressure Ratings: ASME B16.47 Series B flanges are designed to withstand different pressure ratings, which can vary depending on the specific application and customer requirements. The pressure ratings typically range from 75 to 900 pounds per square inch (psi).

Materials: Series B flanges can be manufactured using various materials, including carbon steel, stainless steel, and other alloy materials. The choice of material depends on factors such as the process fluid, temperature, and corrosion resistance requirements.

Facing Configurations: These flanges are compatible with different flange facing configurations, including raised face (RF), flat face (FF), and ring type joint (RTJ). The selection of the facing configuration depends on the specific application and the sealing requirements.

Bolting Requirements: ASME B16.47 Series B flanges have specific bolting requirements. They typically have more bolt holes compared to Series A flanges, and the bolt holes are smaller in diameter. This results in the need for smaller bolting hardware for assembly.

Advantages of ASME B16.47 Weld Neck Flanges and Blind Flanges:

Advantages of ASME B16.47 Weld Neck Flanges:

Strong and Reliable Connection: Weld neck flanges provide a strong and reliable connection between the pipe and the flange. The welding process ensures a secure joint that can withstand high pressure, temperature, and mechanical stresses.

Enhanced Structural Integrity: The long tapered hub of a weld neck flange provides reinforcement to the connection, making it more resistant to bending, flexing, and deformation. This enhances the overall structural integrity of the system.

Improved Flow Characteristics: The smooth transition from the flange bore to the pipe bore in a weld neck flange minimizes flow turbulence and pressure drop. This results in improved flow characteristics, reduced energy loss, and enhanced system efficiency.

Sealing Capability: Weld neck flanges typically feature a raised face or ring joint face configuration, which allows for effective sealing using gaskets. This helps prevent leakage and ensures a tight seal, especially in high-pressure or critical applications.

Advantages of ASME B16.47 Blind Flanges:

Pipeline Closure: Blind flanges are specifically designed to seal the end of a pipeline. They provide a solid barrier, preventing the flow of fluids or gases through the pipeline when needed. This is particularly useful during maintenance, testing, or shutdowns.

System Integrity and Safety: By sealing off the pipeline, blind flanges help maintain the integrity and safety of the system. They prevent the ingress of foreign materials, protect against contamination, and minimize the risk of leaks or spills.

Pressure Containment: Blind flanges are capable of withstanding high internal pressures within the pipeline. They provide a robust closure that can handle the pressure load, ensuring the safe operation of the system.

Versatility: Blind flanges can be used in various applications and industries. They are suitable for both temporary and permanent closures and can be easily installed or removed as needed.

Applications of ASME B16.47 Series B Carbon Steel Weld Neck Flanges and Blind Flanges:

ASME B16.47 Carbon Steel Weld Neck Flanges and Blind Flanges, whether in Series A or Series B, have several applications across various industries.

Oil and Gas Industry: Weld Neck Flanges and Blind Flanges are extensively used in the oil and gas industry for pipeline connections, storage tanks, and refineries. They provide a secure and leak-proof connection for high-pressure and high-temperature applications.

Petrochemical Industry: ASME B16.47 Carbon Steel Flanges are widely employed in petrochemical plants for connecting pipes, valves, and equipment. They ensure reliable and durable connections in processing units, such as distillation columns, reactors, and heat exchangers.

Power Generation: Weld Neck and Blind Flanges are utilized in power plants, including thermal power plants, nuclear power plants, and renewable energy facilities. They are used in pipeline systems, steam turbines, boilers, and other equipment, providing robust connections in demanding operating conditions.

Chemical Industry: Carbon Steel Flanges find applications in the chemical industry for handling corrosive fluids and chemicals. They are used in chemical processing plants, storage tanks, and transportation systems, ensuring the safe and efficient flow of various substances.

Water and Wastewater Treatment: ASME B16.47 Flanges are employed in water treatment facilities, wastewater treatment plants, and desalination plants. They are used for connecting pipes, valves, and pumps, providing secure and leak-free connections in water distribution and treatment systems.

Mining and Minerals: Carbon Steel Flanges are utilized in mining operations for transporting minerals, ores, and slurries. They are employed in pipelines, crushers, conveyors, and other equipment, enabling efficient material handling and processing.

Construction and Infrastructure: Weld Neck and Blind Flanges are used in construction projects and infrastructure development, including buildings, bridges, and pipelines. They ensure reliable connections in plumbing systems, HVAC systems, and water supply networks.