The ASME B16.48 standard covers operating line blanks in sizes NPS 1â??2 through NPS 24 for installation between ASME B16.5 flanges in the 150, 300, 600, 900, 1500, and 2500 pressure classes. A line blank is a pressure-retaining plate that is used to block off a section of pipe. It is typically made of steel or cast iron and has a variety of features, including a raised face, flat face, or grooved face. The ASME B16.48 standard specifies the dimensions, tolerances, materials, and markings for line blanks. There are two main types of line blanks: Spectacle blind flanges: These have a solid end and an open end connected by a web or tie bar. Paddle blanks: These are similar to the solid end of a spectacle blind flange, but they have a plain radial handle. Line blanks are used in a variety of applications, including: To isolate a section of pipe for maintenance or repair To prevent the flow of fluid in a pipe To provide a test point for a piping system The ASME B16.48 standard is an important specification for the design and manufacture of line blanks. It ensures that line blanks are safe and reliable, and that they meet the requirements of the applicable codes and regulations.
ASME B16.47 is an American Society of Mechanical Engineers (ASME) standard that specifies the dimensions, materials, and tolerances for large diameter steel pipe flanges. The standard covers flanges with nominal pipe sizes (NPS) from 26 to 60 and pressure class ratings from 75 to 900. ASME B16.47 flanges are divided into two series: Series A and Series B. Series A flanges are based on the MSS SP-44 standard, while Series B flanges are based on the API 605 standard. The main difference between the two series is that Series A flanges have a larger bolt circle diameter than Series B flanges. ASME B16.47 flanges are typically used in high-pressure and high-temperature applications, such as in the oil and gas industry. They are also used in other industries, such as the chemical, power, and water treatment industries. Here are some of the key features of ASME B16.47 flanges: They are made of steel, cast iron, or stainless steel. They have a raised or flat face. They have a bolt circle diameter that ranges from 125 to 600 millimetres. They have a pressure class rating that ranges from 75 to 900. They have a thickness that ranges from 6.3 to 127 millimetres. ASME B16.47 flanges are an important part of many piping systems. They help to ensure the safe and reliable operation of these systems.
ASME B16.5 flanges are a set of American Society of Mechanical Engineers (ASME) standards that define the dimensions, materials, and tolerances for pipe flanges and flanged fittings. The standard covers flanges made from cast or forged materials, and blind flanges and certain reducing flanges made from cast, forged, or plate materials. It also includes requirements and recommendations regarding flange bolting, flange gaskets, and flange joints. The ASME B16.5 standard is used in conjunction with other ASME standards, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes. It is also widely accepted in other countries, and is often referred to as the ANSI B16.5 standard. The ASME B16.5 standard defines six types of flanges: Weld neck flanges Slip-on flanges Socket weld flanges Threaded flanges Lap joint flanges Blind flanges Reducing flanges Each type of flange has different dimensions and requirements. For example, weld neck flanges have a neck that is welded to the pipe, while slip-on flanges are simply slipped over the pipe. The ASME B16.5 standard is an important reference standard for the design, construction, and installation of piping systems. It ensures that flanges and flanged fittings are safe and reliable, and that they can withstand the pressures and temperatures of the application. Here are some of the key features of ASME B16.5 flanges: We have available in a variety of materials, including carbon steel, stainless steel, and alloy steel. We have a variety of pressure-temperature ratings, from 150 psi to 2500 psi. We have available in a variety of flange types, to suit different applications.
The API 6A flange is a ring joint flange that is used in the petroleum, chemical, and gas industries. It is designed to withstand high pressures and temperatures, and is available in a variety of materials, including carbon steel, stainless steel, and alloy steel. The API 6A flange specification covers the following: Dimensions and tolerances Materials and welding requirements Pressure and temperature ratings Testing and inspection requirements Marking and documentation The API 6A flange is available in a variety of sizes, from 2 inches to 24 inches in diameter. It is also available in a variety of pressure ratings, from 2000 psi to 10,000 psi. The following are some of the technical specifications of the API 6A flange: Face-to-face dimension: The distance between the faces of the flanges when they are assembled. Hub thickness: The thickness of the hub, which is the central portion of the flange. Weld neck thickness: The thickness of the weld neck, which is the cylindrical portion of the flange that is welded to the pipe. Ring groove: The groove in the face of the flange that is used to seal the flanges together. Bolt holes: The holes in the flanges that are used to bolt the flanges together.
BS 4504 is an obsolete British Standard that specifies the dimensions and tolerances of flanges and bolting for pipes, valves, and fittings. It is now superseded by EN 1092-1, but it remains in use for the dimensions of light duty, economy stainless steel flanges in applications where corrosion resistance and hygiene, rather than high pressures and temperatures, are the primary considerations. BS 4504 covers four types of flanges: Plain flanges Boss flanges Integrally cast or forged flanges Weld neck flanges The flanges are available in a variety of materials, including carbon steel, stainless steel, alloy steel, and copper. They are also available in a variety of pressure ratings, from PN6 to PN40. The technical specifications of BS 4504 flanges are as follows: Nominal size: DN10 to DN400 Pressure rating: PN6 to PN40 Material: Carbon steel, stainless steel, alloy steel, copper Finish: Plain, raised face, grooved Bolting: DIN 2566 or BS 3692 BS 4504 flanges are used in a variety of applications, including: Water and wastewater treatment Chemical processing Food and beverage processing Pharmaceutical manufacturing Power generation Oil and gas
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