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Weld Neck Flange

Weld Neck Flange

A weld neck flange is a type of flange that is used to connect pipes and other tools in piping systems. It is made to be butt-welded to a pipe, which makes a strong link. The weld neck flange has a long neck with a curved end and a round base with bolt holes. One of the most important things about a weld neck plate is that it is strong and dependable. Welding the neck to the pipe ensures the link is strong and can handle high temperatures and pressures. It makes weld neck flanges great for use in tough situations where a strong link that doesn’t leak is important. A weld neck flange has a curved neck that can be used for more than one thing. First, it makes the change from the pipe to the plate smooth, reducing the stress at the joint. It helps spread the stress out and lowers the chance of failure. Also, the curved neck makes it easy to line up the pipe during welding, ensuring it fits perfectly.
Weld neck plates also help stop leaks, which is another important benefit. When put correctly, they seal well and reduce the risk of leaks in important systems. It is especially important in fields like oil and gas, where even small leaks can cause big problems. Weld neck flanges are used a lot in the oil and gas, petrochemical, power production, and process piping industries. They are often used in high-pressure and high-temperature situations in these businesses. Because they are strong and last a long time, they can be used in tough settings for a long time. Weld neck flanges must be carefully prepared and welded before being put in place. Before welding, the pipe and the joint need to be cleaned and put in the right place. For a strong and reliable joint, the welding process should be done by skilled welders who follow the right methods.
Weld neck flanges also come in different sizes, pressure levels, and materials to meet the needs of a wide range of applications. Most of the time, they are made based on industry standards like ASME B16.5 and ASME B16.47. Weld neck flanges are important parts of pipe systems because they make strong, reliable connections and don’t leak. The design of their tapered necks, combined with the right way to install and weld them, makes for a strong joint that can handle high pressures and temperatures. Weld neck flanges are important to keeping industrial systems safe and running well. They are used in oil and gas, petrochemical, power generation, and process pipes.

Weld Neck Flange Specifications

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, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS : BS4504 , BS4504, BS1560, BS10
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Material & Grades of Weld Neck Flange

Stainless Steel Slip On Flange :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Slip On Flange :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Slip On Flange :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Slip on Flange : ASTM A350, LF2, LF3
Alloy Steel Slip On Flanges :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel Slip On Flange : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Slip On Flange :
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

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