Long Neck Flanges
Long neck flanges, also known as long weld neck flanges, are designed for butt welding to piping systems, featuring an extended neck for enhanced strength and stress distribution. They provide simple connectivity and robust performance in demanding applications.
These flanges are extensively used in refining industries and other high-pressure systems, offering reliable connections at competitive prices, sourced from trusted vendors for quality assurance.
Long neck flanges are engineered for high-performance piping systems, featuring an elongated neck that distributes stress from the pipe to the flange, ensuring durability under high-pressure and high-temperature conditions. Butt welded to the pipe, they align the bore for smooth flow, reducing turbulence and erosion. Their robust design and simple connectivity make them a preferred choice in refining, petrochemical, and other critical industries, providing secure and leak-proof joints.
Long neck flanges are manufactured to meet stringent industry standards, ensuring compatibility and performance in critical applications.
Grade/Standard | Equivalent | Application |
---|---|---|
ASTM A105, C21/C22.8, EN10222-2 | Carbon Steel | Oil and gas, refining |
ASTM A182 F304(L/H), UNS S30400, WSt. 1.4301, EN10222-5 | Stainless Steel | Chemical processing, marine |
ASTM A182 F316(L/H/Ti), UNS S31600, WSt. 1.4401, EN10222-5 | Stainless Steel | Petrochemical, high-temperature systems |
Long neck flanges are critical in industries requiring robust and reliable piping connections:
Material: | Standard: | Connection: | Size Range: | Pressure Rating: |
---|---|---|---|---|
Carbon Steel, Stainless Steel | ASME B16.5, ANSI B16.47, EN10222-2, EN10222-5 | Butt-Weld | 1/2" to 24" (Standard), up to 60" (Custom) | 150#, 300#, 600#, 900#, 1500#, 2500# |