Large Size ASME B16.47 Weld Neck Flange/ Blind Flanges 300LB Series B for Chemical and Petrochemical Industry

 ANSI B16.47 SERIES B Class 300 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:

ANSI B16.47 Series B flanges are large diameter steel flanges designed and manufactured according to the specifications outlined in the ANSI B16.47 standard:

Design and Construction: ASME B16.47 Series B flanges, including weld neck flanges and blind flanges, are designed and constructed to meet the requirements of large diameter piping systems. They are manufactured with carbon steel, which provides strength, durability, and resistance to corrosion.

Long Tapered Hub: Weld neck flanges have a long tapered hub that provides reinforcement to the connection between the flange and the pipe. This design ensures better structural integrity and reduces the risk of leakage.

Raised Face (RF) or Flat Face (FF): Weld neck flanges in Series B can have a raised face or flat face configuration, allowing for effective sealing with gaskets.

Solid Plate Design: Blind flanges in Series B feature a solid plate design without any opening or bore. They are used to close off the end of a pipe or vessel, providing a secure barrier.

Raised Face (RF) or Flat Face (FF): Blind flanges can also have a raised face or flat face configuration, depending on the sealing requirements of the application.

Size Range: ASME B16.47 Series B flanges are specifically designed for large diameter piping systems. They are available in sizes ranging from 26 inches to 60 inches, accommodating the requirements of such systems.

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

Compatible with Various Flange Facing Configurations: ASME B16.47 Series B flanges are compatible with different flange facing configurations, including raised face (RF), flat face (FF), and ring type joint (RTJ). This provides flexibility in terms of gasket selection and sealing options.

The Bolting Requirements for ASME B16.47 Series A and Series B flanges:

The bolting requirements for ASME B16.47 Series A and Series B flanges differ in terms of bolt hole size and arrangement. Here are more details about the bolting requirements for each series:

ASME B16.47 Series A Flanges:

Bolt Hole Size: Series A flanges have larger diameter bolt holes compared to Series B flanges of the same size and pressure rating. The larger bolt hole size allows for the use of larger bolts.
Bolt Hole Arrangement: The bolt holes in Series A flanges are arranged in a larger pitch circle diameter (PCD) pattern. This means that the bolt holes are spaced further apart from each other compared to Series B flanges.
Bolting Hardware: Due to the larger bolt hole size and arrangement, Series A flanges require larger bolting hardware, including bolts, nuts, and washers.

ASME B16.47 Series B Flanges:

Bolt Hole Size: Series B flanges have smaller diameter bolt holes compared to Series A flanges of the same size and pressure rating. The smaller bolt hole size necessitates the use of smaller bolts.
Bolt Hole Arrangement: The bolt holes in Series B flanges are arranged in a smaller pitch circle diameter (PCD) pattern. This means that the bolt holes are spaced closer together compared to Series A flanges.
Bolting Hardware: Due to the smaller bolt hole size and arrangement, Series B flanges require smaller bolting hardware, including bolts, nuts, and washers.

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.