Long weld neck flanges are used in various applications in different industries, including oil and gas, petrochemical, power generation, and chemical processing plants.
They are primarily used in critical applications where safety and reliability are paramount, such as high-pressure piping systems, high-temperature piping systems, and cryogenic services. We provide a variety of flanges like WNRF Flanges, BLRF Flanges etc.
The long weld neck flange is distinguished by the unique features that make it an ideal choice for critical applications. It has a long tapered neck that provides ample space for welding and optimal flow conditions. LWN flanges have a high-pressure rating and are available in different materials, sizes, and ratings to meet different application needs.
Additionally, the extended neck also provides additional support to the piping system, making it more stable and secure. At universalmetalcorporation, there are different types of products available like Expander Flanges, Spades and Ring Spacers Flanges, etc.
Long-weld neck flanges offer numerous benefits compared to other types of flanges. One of the primary advantages is their ability to provide additional reinforcement and stability to the pipe system, which makes them suitable for high-pressure and high-temperature applications. They are ideal for critical applications such as aerospace and military, where safety and reliability are paramount.
LWN flanges can also handle thermal stresses, reducing the risk of pipe failure due to thermal expansion or contraction.
The long weld neck flange is unique and offers numerous benefits in various critical applications. The ample space it provides for welding makes it a more reliable and robust connection than other flange types.
Its ability to handle high pressure and high temperature also makes it an ideal choice for applications such as oil and gas, chemical processing, power generation, and aerospace. When selecting flanges for your next project, consider long weld neck flanges for their outstanding features and benefits.
What is the purpose of a long weld neck flange?
A long weld neck flange is designed to provide a smooth transition from pipe to flange, reducing stress concentrations and facilitating easy welding in critical applications.
What materials are commonly used in manufacturing Long Weld Neck Flanges, and why?
Common materials for Long Weld Neck Flanges include carbon steel, stainless steel, and alloy steel. Material choice depends on factors such as corrosion resistance, temperature, and pressure requirements, ensuring durability and reliability.
Are Long Weld Neck Flanges suitable for both high-temperature and cryogenic applications?
Yes, Long Weld Neck Flanges are versatile and can be manufactured from materials suitable for extreme temperature ranges. Proper material selection ensures their reliability in both high-temperature and cryogenic environments.
Specification of Long Weld Neck Flanges
- Size : 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
- Dimensions : 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 SP44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
- Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
- 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, DIN 2673
- BS : BS 4504, BS 4504, BS 1560, BS 10
- Pressure : PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160
- JIS : JIS B2220, JIS B2221, 5K, 10K, 16K, 20K, 30K, 40K, 63K
- Connect Type/ Flange Face Type : Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Small Male-Female (SMF)
Long Weld Neck Flanges Material & Grades
Stainless Steel Long Weld Neck Flanges :
ASTM A182, F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, SMO 254
Duplex & Super Duplex Steel Long Weld Neck Flanges :
ASTM / ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61 / Duplex 2205 – UNS S31803, UNS S32205 / Super Duplex 2507 – UNS S32750, UNS S32760
Hastelloy Long Weld Neck Flanges :
ASTM B/SB564, Hastelloy B2 – UNS No. N10665, Hastelloy B3 – UNS No. N010675, Hastelloy C4 – UNS No. N06455, Hastelloy C22 – UNS No. N06022, Hastelloy C276 – UNS No. N10276, Hastelloy C2000 – UNS No. N06200, Hastelloy X – UNS No. N06002
Inconel Long Weld Neck Flanges : ASTM B564, Inconel 600 – UNS No. N06600, Inconel 601 – UNS No. N06601, Inconel 625 -UNS No. N06625, Inconel 715, Inconel 718 – UNS No. N07718, Incoloy 800 / 800H /800HT – (UNS No. N08800 / N08810 / N08811), Incoloy 825 – UNS No. N08825, Incoloy 925 – UNS No. N09925
Monel Long Weld Neck Flanges :
ASME SB 564, Monel 400 – UNS No. N04400, Monel K500 – UNS No. N05500
Nickel Long Weld Neck Flanges : Nickel 200 – UNS No. N02200 , Nickel 201 – UNS No. N02201
Titanium Long Weld Neck Flanges :
ASTM B381 / ASME SB381, Grade 2 – UNS No. R50400, Grade 5 – UNS No. R56400
Alloy 20 Long Weld Neck Flanges :
ASTM B462 / ASME SB462, Grade 2 – UNS No. N08020
ANSI/ASME Long Weld Neck Flanges
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EN/PED Long Weld Neck Flanges
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BS Long Weld Neck Flanges
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JIS Long Weld Neck Flanges
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Flange Standard
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Other types of Long Weld Neck Flanges Stock
- 316L Stainless Steel Long Weld Neck Flanges
- Stainless Steel 304 Industrial Long Weld Neck Flanges
- 600 Inconel EN 1092-2 PN16 Long Weld Neck Flange
- Inconel 625 Class 300 Long Weld Neck Flange
- Stainless Steel 316 Long Weld Neck Flanges
- Incoloy 800 Class 150 Long Weld Neck Flanges
- UNS S31803 Duplex Steel Class 150 Long Weld Neck Flange
- Duplex 2205 BS4504 PN16 Long Weld Neck Flange
- Monel 400 Long Weld Neck Flange 600#
- Duplex S32205 Long Welding Neck Flanges
- SS 304L AWWA C207 Class E Long Weld Neck Flanges
- UNS S32750 Long Weld Neck Flanges
- Incoloy 825 Long Weld Neck Flange
- Super Duplex Steel S32760 Long Weld Neck Flanges
- ASTM A182 F317 Stainless Steel Long Weld Neck Flange
- ASTM A182 F347 SS BS 10 Table E Long Weld Neck Flange
- Stainless Steel 446 Long Weld Neck Flange
- Titanium Grade 2 JIS B2220 Long Weld Neck Flanges
- Hastelloy C276 JIS 5K Long Weld Neck Flanges
- Stainless Steel Long Weld Neck Flange Dimensions PN16
- 321H Stainless Steel Long Weld Neck Flanges
- ASME B16.47 Stainless Steel Long Weld Neck Flanges
- ANSI B16.5 Stainless Steel 904L Long Weld Neck Flange
- Titanium Gr 5 BS4504 PN16 Long Weld Neck Flanges
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