Long Weld Neck Flanges ASTM / ASME A/SA 182 Size: 1/2" (DN15) - 100" (DN2500)
 
Specification:
Size: 1/2" (DN15) - 100" (DN2500)
Brand Name: TOBO
Class: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, etc
Specialize: As per drawing
 
Standard:
ANSI/ASME:
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN:
DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S:
BS4504, BS4504, BS1560, BS10, etc
 
A Integral Flange which is also called Long weld neck flange (LWN flange), is used for high pressure situations, integral hub weld neck flanges are used and for very high pressure cases Long Welding Neck flanges are preferred. In this case, the weld are far from the ring to avoid bending stresses and weld stress being combined.
Long Weld Neck Flange is similar to Welding Neck Flange with extensive large neck/bore used to weld against other pipe or fittings.
Long Weld Neck Flange is special purpose flange. Unlike standard weld neck, it is manufactured with large neck from forging stock or can be directly machined from a forged round bar.
 
Integral Flanges (Long Weld Neck Flanges) Material:
Stainless Steel Integral Flanges (Long Weld Neck Flanges) : ASTM A182, A240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
 
Carbon Steel Integral Flanges (Long Weld Neck Flanges) : ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
 
Alloy Steel Integral Flanges (Long Weld Neck Flanges) : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
 
Duplex Steel Integral Flanges (Long Weld Neck Flanges) : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
 
Super Duplex Integral Flanges (Long Weld Neck Flanges) : ASTM / ASME A/SA 182, A240 F 44, F 45, F51, F 53, F 55, F 60, F 61
 
Nickel Alloy Integral Flanges (Long Weld Neck Flanges) :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), Titanium (Grade I & II)
 
Copper Alloy Integral Flanges (Long Weld Neck Flanges) : UNS No. C10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu-Ni-70/30)
 
Low Temperature Carbon Steel Integral Flanges (Long Weld Neck Flanges) : ASTM A350, LF2, LF3
 
Applications Of Integral Flanges (Long Weld Neck Flanges)
Integral Flanges (Long Weld Neck Flanges) are used in Chemical and petrochemical processing.
Integral Flanges (Long Weld Neck Flanges) are used in electronics.
Integral Flanges (Long Weld Neck Flanges) are used in processing equipment for maintaining product purity in handling foods, synthetic fibers.
Integral Flanges (Long Weld Neck Flanges) are used in marine and offshore engineering.
 
Dimensions of Integral Flanges (Long Weld Neck Flanges)

ANSI Class 300, ASME B16.5