Flanges
Weld Neck Flange
Weld neck flanges to ASME B16.5, ASME B16.47 and EN 1092, including long weld neck, with tables for MS, carbon, stainless and Cr-Mo grades.
Specification
At a glance
- Dimensional standard
- ASME B16.5 · ASME B16.47 · EN 1092-1 · BS 10
- Types & ends
- Weld neck · Long weld neck
- Grades
- Mild SteelIS 2062 Gr. A
- Carbon SteelASTM A105N
- Stainless SteelASTM A182 F304 / F304L / F316 / F316L
- Alloy SteelASTM A182 F11 / F22 / F91
- Also offered in
- Carbon steel ASTM A105N
- Stainless steel ASTM A182 F304/F316
- Alloy steel ASTM A182 F11/F22/F91
- Mild steel IS 2062
Dimension tables
7 classes · dimensions, weights, Excel
Mild Steel
BS-10 Table D
Stainless Steel
Alloy Steel
As published by Fortune Fittings Private Limited. Grade and availability are confirmed with each enquiry; confirm the governing standard, size and grade when ordering. Spotted a mistake? Please contact us.
Overview
Product overview
Weld Neck Flanges (WNRF) are indispensable components in piping systems, providing strong, leak-proof connections essential for efficient operation. At Fortune Fittings Private Limited, we specialize in manufacturing and supplying high-quality ASME B16.5 and ASME B16.47 Weld Neck Flanges, offering a comprehensive range of products to meet diverse industrial needs.
Understanding Weld Neck Flanges
Weld Neck Flanges are designed to be welded onto a pipe’s neck, ensuring a robust and reliable connection. They come in various types, including Long Weld Neck Flanges, and are crafted from durable materials such as stainless steel and carbon steel, offering exceptional strength and durability.
Standards Specifications
Our Weld Neck Flanges adhere to industry standards such as ANSI B16.5, ANSI B16.47, and EN1092, ensuring compatibility and compliance with regulatory requirements. Available in various face types, dimensions, and pressure ratings, our flanges are designed to meet diverse industrial needs.
Conclusion
In conclusion, Weld Neck Flanges are essential components in piping systems, offering strong, leak-proof connections critical for efficient operation. At Fortune Fittings Private Limited, we are committed to providing high-quality Weld Neck Flanges that meet the stringent requirements of various industries.
Where it is used
Applications and service
Typical duty across the process industries we supply.
- Weld Neck Flanges find applications across a wide range of industries, including oil and gas, petrochemicals, power generation, and more.
- Whether it’s connecting pipelines, valves, or pumps, our flanges offer reliable performance and durability in demanding environments.
Engineering
Technical notes
How the component behaves in the line, and the details to settle before an order is placed.
How it behaves in the line
- Single butt weld (no inside fillet): full-penetration, radiographable joint
- Tapered hub distributes load gradually from flange ring to pipe
- The matching bore of the hub must equal the pipe bore exactly (schedule-specific)
- Preferred for gas, steam, and critical hydrocarbon service per most specifications
- RTJ (Ring Type Joint) facing available for Class 600 and above
Confirm when ordering
- Specify class AND bore schedule: e.g. Class 150 Weld Neck, Sch 40 bore
- RTJ or RF facing: confirm gasket type before ordering
- NACE MR0175 compliance for sour service
Dimensions, wall thicknesses and pressure classes are in the dimension tables; the governing standards are summarised on the standards reference.
Related
Specified alongside this
Components that commonly appear with it on the same run, and the rest of the flanges range.
Used on the same lineSlip-On FlangeSlip-on flanges to ASME B16.5 and EN 1092-1, flat or raised face, with dimension tables for mild, carbon and stainless steel.View specifications
Used on the same lineBlind FlangeBlind flanges to ASME B16.5, ASME B16.47, BS 4504 and EN 1092-1, 1/2″ to 48″, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Used on the same lineSpectacle BlindSpectacle blinds to ASME B16.48 (a solid and an open disc in a figure 8), 1/2″ to 48″, Class 150 to 2500, for line isolation.View specifications
Used on the same linePaddle BlindPaddle blinds (spades) to ASME B16.48 for isolating a line between two flanges, 1/2″ to 48″, up to Class 2500, in A105 carbon steel.View specifications
Used on the same lineLap Joint FlangeLap joint flanges to ASME B16.5, EN 1092-1 and DIN 2642, used with a stub end, Class 150 to 600, with Class 150 dimension tables.View specifications
Used on the same lineSocket Weld FlangeSocket weld flanges to ASME B16.5 and BS 4504 for small-bore, high-pressure lines, in stainless and carbon steel, with Class 150 tables.View specifications
Where it is specified
Industries using this component
Sectors that commonly specify the Weld Neck Flange, and what else they take from us.
Enquiries
Need a quotation for the Weld Neck Flange?
Send sizes, grades, quantities and the standard the component is specified to, and a sales engineer will come back with availability and pricing. Dimensions and schedules are in the Technical Catalog.