BS3293 Stainless Steel Carbon Steel Foged Weld Neck Flange

Product Data

Product Introduction

BS3293 is a standard issued by the British Standards Institution (BSI), which specifies the design, dimensions, materials, and test requirements for weld neck flanges. In this standard, neck welded flanges are suitable for nominal pressures ranging from 10 bar to 40 bar and nominal sizes ranging from DN15 to DN2000.

Neck butt welding flange is a common pipe connection flange, commonly used in high temperature, high pressure, or high viscosity fluid pipeline systems. A neck weld flange has a raised neck that can be used to support and position the pipe. Neck butt welding flanges are also typically butt welded to the ends of pipes and secured with bolts and gaskets.

The BS3293 standard specifies the size and nominal pressure rating of neck welded flanges, covering various pipe sizes from DN15 to DN2000. The standard also specifies details such as the number, size, and layout of bolts for the flange to ensure its reliability and safety under high pressure. In addition, the standard also specifies the materials used for flanges, as well as the testing and inspection requirements for flanges, to ensure that the flanges meet the requirements of the standard.

The BS3293 standard also specifies the nominal pressure ratings for neck welded flanges, including 10 bar, 16 bar, 25 bar, and 40 bar ratings. Each level has a corresponding maximum working pressure and temperature range to ensure the safety of the flange under high pressure and high temperature conditions.

In summary, the BS3293 standard is one of the important standards for neck welded flanges, providing the necessary design and manufacturing guidelines for this common pipe connection method to ensure its reliability and safety under high pressure.

Under the BS3293 standard, there are generally two flanges commonly used in this standard, namely, neck butt welded flanges and neck flat welded flanges. The names of the two flanges do not indicate any difference or connection. However, in practical applications, the two types of flanges are often confused or even mistyped, resulting in the inability to achieve the most perfect effect. In the article Weld Neck Flanges and Slip On Flanges - BS3293, We have compared the two flanges for your reference.