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Prime Steel stands out as a reliable manufacturer of ANSI/ASME B16.5 and B16.47 Slip-On Flanges, offering a comprehensive range of products designed to meet the stringent requirements of diverse industrial applications. Prime Steel focuses on producing flanges that adhere to the ANSI/ASME B16.5 and B16.47 standards. These standards are vital in ensuring the precision, quality, and compatibility of slip-on flanges in various industrial applications.
Flange Type
Flange Specification
Nominal pipe size (NPS)
Flange Rating (or class)
Pipe Schedule
Flange Facing Type (FF; RF, RTJ):
Flange Surface Finish
Material Grade
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
15mm ( 1/2" NPS ) up to 600mm ( 24" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40.
FF—Flat Face, RF—Raised Face, FM—Female Face, M—Male Face, T—Tongue Face, G—Groove Face, RJ—Ring Joint.
Stainless Steel, Carbon Steel, Alloy Steel, Duplex Steel & Super Duplex Steel, LTCS, Nickel Alloy
oil and gas, petrochemicals, power generation, marine and food & beverage process lines, and water treatment
ANSI / ASME Slip On Flange specifications of B16.5 and B16.47 trace their roots to the old B16.1 specification from decades past, which consisted primarily of cast iron.
Read MoreDIN 2576 Slip On Flange - PN10 and PN16, Deutsches Institute fur Normung flange specification, consisting of various European styles that have been unified into one code for commonality.
API 6a Slip On Flange and fittings are referenced under API 6A and utilized for high-pressure oilfield applications.
JIS b2220 5k 10k slip on Flange, “JIS” Stands for Japanese Industrial Standard and is published by the Japanese Standards Association (JSA), the equivalent of ANSI in the United States.
Read MoreAWWA C207 Slip On Flange, American Water Works Association flanges are the exact opposite of the API flanges and can be found in various assemblies in which temperature is ambient and media is not corrosive.
Read MoreGOST 12817-80: Slip-on flanges for pressure to PN 10 MPa. GOST (Gosudarstvennyy Standart) refers to the national standards system used in Russia and other countries.
Slip-on flanges come in various pressure classes, and the pressure class is an important consideration when selecting a flange for a specific application. The pressure class indicates the flange's ability to withstand pressure under normal operating conditions. Here are some common pressure classes associated with slip-on flanges:
These pressure classes are associated with slip-on flanges conforming to standards such as ANSI/ASME B16.5. The selection of the appropriate pressure class depends on the specific requirements of the system, including the fluid, temperature, and pressure conditions. This class rating is a pivotal parameter, specifying the pressure at which a flange can safely operate within a given system. A typical representation includes the class number followed by symbols like ‘#’, ‘Lb’, or ‘lbs’ – for instance, a "Class 150#" flange denotes a pressure rating of 150 pounds per square inch (psi).
Slip On Flanges, often referred to as SO flanges, are a type of flat welded flange that plays a crucial role in various industrial piping systems. These SORF Flanges are characterized by their simplicity, ease of installation, and suitability for specific pressure conditions
The choice of slip-on flanges depends on the specific requirements of the system, including pressure, temperature, and fluid characteristics. Always adhere to relevant standards, such as ANSI/ASME B16.5, for accurate information on dimensions, pressure ratings, and other specifications.
Slip-On Flanges offer a practical and cost-effective solution for various piping systems, especially in scenarios where simplicity and ease of installation are critical considerations. Slip-On Flanges are designed to slide over the end of a pipe and then be welded in place. This design facilitates easy alignment during installation.
Type: Slip-On Flange belongs to the flat welded flange series.
Connection: Fixed by two welding fillets, both inside and outside the flange.
Installation: Slides over the end of a tube and then is welded in place.
Pressure Rating: Works well for low-pressure applications.
Slip On Flanges are flat, circular discs with evenly spaced bolt holes. They are attached to the ends of pipes, valves, or other equipment to facilitate the connection of different sections of a piping system.
Gaskets are soft, deformable materials placed between the facing surfaces of two flanges to create a leak-tight seal. The gasket material is selected based on the type of fluid, temperature, and pressure conditions in the piping system.
Common gasket materials include rubber, compressed fiber, and various types of elastomers or metals, depending on the application.
Bolts and nuts are used to secure the flanges together, compressing the gasket and creating a tight seal. The number and size of bolts depend on the flange size and pressure rating.
Bolt materials are typically carbon steel, alloy steel, or stainless steel, and they are chosen based on the corrosion resistance and strength required for the specific application.
Check ANSI/ASME B16.5, B 16.47 Slip On Flange Dimensions Download
