Long Weld Neck Flanges
Description
A long neck flange is among the lightest and most economical of FCI flange connections in areas of usage where a minimum reinforcing area is required. These flanges feature a uniform barrel outside diameter, which provides relief clearance between the connection neck and the nut.
Standard:
ANSI B16.5, ANSI B16.47, ANSI B16.36, MSS SP44, API 6A, BS4504, BS10, EN1092, UNI, DIN.
Materials:
Carbon Steel: ASTM A105, 20 #, Q235, 16Mn
Stainless Steel: ASTM A182 F304, 304L, F316, 316L
Alloy steel: ASTM A182 F1, F9, F11, F91, A182F12, A182F11, 12Cr1MoV, A335P22
Production Process:
After forging, the flange undergoes machine molding.
Size:
3/8 "to 60"
DN10 ~ DN4000
Application Industry:
Electricity, oil and gas, petrochemical, chemical, shipbuilding, heating, papermaking, metallurgy
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