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Long Weld Neck Flanges. Long weld neck flanges, also called LWN flange, are similar to standard weld neck flanges but the neck is considerably longer. This type is often used as a nozzle for a barrel or column. They can be futher sorted as standard type, heavy barrel type, variable body type and full body type. See product detailsPlease refer to shipping charges (*)
Product details
Catalogues
Long Weld Neck Flange
Specification for Long Weld Neck Flanges:
1. International Standards:
ASEM B16.5, ASME B16.47 Series A(MSS SP44), ASME B16.47 Series B(API 605)
BS4504, BS3293, BS1560, DIN2627, DIN2628, DIN2629, DIN2633, DIN2634, DIN2635, DIN2636
2. Material Specification:
ASTM A105, A181, A350, A516, A694, A36; EN DIN C22,8, ST37.2
ASTM A182 F304(L), F316(L), F310, F317, F321, F347, F904L
Aluminum 3003, 6061; Hastalloy B-2, C-276, G, X, C-22;
Inconel 600, 601, 625, 718; Incolloy 800, 825, 800H, 800HT;
Monel 400; Copper C70600, C71500; Duplex F51, F53; Titanium Gr.2 Gr.12
3. Pressure Ratings:
Class 150 ~ Class 2500; PN16 ~ PN400
4. Size Range:
1/2" ~ 72" (DN15 ~ DN1800)
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