Long Weld Neck Flanges feature a long, tapered neck that offers enhanced structural strength and provides excellent support to the connected piping system. Their robust design makes them suitable for demanding pressure and temperature conditions, making them a preferred choice for oil & gas, petrochemical, chemical processing, power generation, and other industrial applications.
| Dimensions: | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
|---|---|
| Size: | 1/2″ (15 NB) to 48″ (1200NB) |
| Class: | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| BS: | BS4504, BS4504, BS1560, BS10, PN6, PN10, PN16, PN25, PN40, etc. |
| Table: | D / E / F / H / J / K |
| Api Standards: | PSI-2000/3000/5000/10000/etc |
| JIS Standards: | 2220-2004 5k/10k/16k, etc. |
| Flange Face Type: | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| ASME B16.5 Long Weld Neck Flanges Size Chart: | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
|---|---|
| Long Weld Neck Flange Standards: | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Long Weld Neck Flanges, ASME Long Weld Neck Flanges, BS Long Weld Neck Flanges, DIN Long Weld Neck Flanges, EN Long Weld Neck 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 |
| Long Weld Neck Flanges Pressure Rating ANSI: | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Long Weld Neck Flanges |
| Long Weld Neck Flanges Pressure Calculation in DIN: | 6Bar, 10Bar, 16Bar, 25Bar, 40Bar / PN6, PN10, PN16, PN25, PN40, PN64 Long Weld Neck Flanges |
| JIS Long Weld Neck Flange ASME B16.5: | 5K, 10K, 16K, 20K, 30K, 40K, 63K Long Weld Neck Flanges |
| UNI Carbon Steel Long Weld Neck Flange: | 6Bar, 10Bar, 16Bar, 25Bar, 40Bar Long Weld Neck Flanges |
| EN ANSI B16.5 Long Weld Neck Flange: | 6Bar, 10Bar, 16Bar, 25Bar, 40Bar Long Weld Neck Flanges |
| Coating: | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Long Weld Neck Flanges |
| Most Common Types of Long Weld Neck Flanges: | 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 |
| 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, Groove |
| Special Design: | As per your drawing |
| Standards: | AS, ANSI, BS, DIN and JIS |
| Configurations: | 15 NB (1/2") to 200 NB (8"), Equal and Reducing Configurations |
| Test: | Direct-reading Spectrograph, Hydrostatic Testing Machine, X-ray Detector, Ultrasonic Flaw Detector, Magnetic Particle Detector |
| Equipment: | Press Machine, Bending Machine, Pushing Machine, Electric Bevelling Machine, Sand-blasting Machine, etc. |
| Origin: | Indian / West Europe / Japan / USA / Korean |
| Long Weld Neck Flange Manufacturers: | ANSI, DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE, etc. |
| Long Weld Neck Flanges Types / Standards: | 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 |
| B.S: | BS4504, BS3293, BS1560, BS10 |
| AS 2129: | Table D; Table E; Table H |
| ANSI: | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| ANSI Standards: | ANSI B16.5, ANSI B16.47 (API605), MSS SP44, ANSI B16.36, ANSI B16.48 |
| American Standard: | ANSI |
| German Standard: | DIN |
| British Standard: | BS |
| DIN: | DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 Long Weld Neck Flanges |
| Other Standards: | AWWA C207, EN1092-1, GOST12820, JIS B2220, KS B1503, SABS1123, NFE29203, UNI2276 |
| Long Weld Neck Flanges Uses & Application: |
Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
| Export to ASME B16.5 Long Weld Neck Flanges: | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc. |