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Weld neck flanges are pivotal components in piping systems, recognized for their robustness and reliability. These flanges play a crucial role in ensuring a secure and durable connection. Understanding the benefits, types, specifications, and standards associated with weld neck flanges is essential for making informed decisions in engineering projects.
Weld neck flanges offer unparalleled advantages in piping systems, making them a preferred choice for engineers and manufacturers. Key benefits include superior strength, enhanced stability, and suitability for high-pressure applications. These flanges provide a tight and leak-free connection, ensuring the integrity and longevity of the piping system.
Various types of weld neck flanges cater to diverse industrial needs. Understanding the specific characteristics of each type is crucial for selecting the right flange for your application. Common types include standard weld neck flanges, long weld neck flanges, and stainless steel weld neck flanges.
As it's name it is like a combination of pipe reducer and flange, so it could be welded to a smaller pipe directly.
Simplified called as LWN flange, the neck part seems like a elongated pipe and connected to a flange. So in most cases it works as a nozzle for a column or a barrel.
Choosing the right weld neck flanges involves considering specifications such as materials, pressure ratings, and sizes. The table below provides key details, aiding in the selection of these flanges for different applications.
| ASME B16.5 Weld Neck Flange Size Chart | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| Raised Face Weld Neck Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Reducing Weld Neck Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 rtj long weld neck flange |
| JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Reducing Weld Neck Flange |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar Raised Face Weld Neck Flange |
| WNRF Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Flat Face Weld Neck Flange |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar Welding Neck Flange |
| Most common types of Carbon Steel Weld Neck Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique | Forged, Heat treated and machined |
| Stainless steel long weld neck flange Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Carbon steel long weld neck flange |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2") to 200 NB (8") Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Heavy barrel long weld neck flange Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
WNRF Flange -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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Weld neck flanges adhere to specific standards and grades to ensure quality and compatibility. It is essential to choose flanges that meet industry standards for optimal performance and safety. Here are the Standards and Grades for Weld Neck Flanges
Apex Engineering stands out as a reliable supplier of weld neck flanges, offering clients a combination of extensive industry experience, high-quality products, and a customer-centric approach. Our commitment to timely delivery and comprehensive support makes us the preferred choice for weld neck flange solutions.
A weld neck flange is a type of flange designed to transfer stress from the flange to the pipe, reducing high-stress concentrations at the base of the flange. This design feature makes weld neck flanges ideal for applications with high-pressure and high-temperature conditions.
Weld neck flanges find applications in industries requiring reliable and leak-free connections. Commonly used in high-pressure and high-temperature systems, these flanges ensure a secure attachment, making them essential in petrochemical, oil and gas, and power generation industries.
Long weld neck flanges offer an extended neck, providing additional reinforcement and facilitating easier access to the pipe. This design is advantageous in applications where thermal expansion, corrosion, or erosion are considerations. Long weld neck flanges are particularly useful in connecting pipes to pressure vessels.
This detailed guide covers weld neck flanges comprehensively, including their benefits, types, specifications, standards, and why Apex Engineering is the preferred supplier. For further inquiries or assistance, feel free to contact us.
