ANSI B16.47 SERIES A Class 900 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 A FLANGES for more than 20 years in the industry.

Our ANSI B16.47 SERIES A 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.

At the core of our operations lies a commitment to customer satisfaction as our top priority. Recognizing the significance of delivering dependable and long-lasting products that cater to the varied requirements of our clients, we have assembled a dedicated team of experts who go the extra mile to uphold the utmost quality standards for every weld neck flange produced in our facility. Our manufacturing process integrates cutting-edge technologies and advanced techniques, guaranteeing meticulous precision in dimensions, exceptional surface finishes, and exceptional resistance to corrosion.

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

1.Dimensions are in millimeters(mm).

2.B1 can be specified by different purchasers.

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.

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

Disadvantages of ASME B16.47 Weld Neck Flanges:

Higher Cost: Weld neck flanges, including those specified in ASME B16.47, tend to be more expensive compared to other flange types. The additional material and labor required for the weld neck design contribute to the higher cost.

Welding Requirement: Weld neck flanges necessitate welding to the pipe, which adds complexity to the installation process. Skilled welders and proper welding procedures are required to ensure strong and leak-free weld connections.

Limited Flexibility: Once a weld neck flange is welded to the pipe, it becomes a permanent part of the system. This limits the flexibility to make changes or modifications to the piping layout in the future.

Disadvantages of ASME B16.47 Blind Flanges:

No Flow Control: Blind flanges are used to close the end of a pipeline, providing a solid barrier. However, they do not have the capability for flow control or regulation. If flow control is required in the system, additional valves or equipment must be installed.

Reduced Accessibility: Once a blind flange is installed, it completely seals off the pipeline. This can make it challenging to access or inspect the interior of the pipeline without removing the blind flange.

Potential Pressure Build-Up: In certain situations, such as during hydrostatic testing or accidental blockages, pressure can build up behind a blind flange. Proper precautions and relief mechanisms should be in place to prevent damage or accidents caused by unexpected pressure build-up.

Applications of ASME B16.47 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.

Carbon steel weld neck flanges are pipeline connection components widely used in various industries. They play important roles in the petroleum and gas industry, chemical industry, power plants, and manufacturing industry, providing reliable pipeline connection solutions.