Glen flange has provided the highest quality custom forgings flanges for a wide range of industries since 2006, especially on shipbuilding industry, our team of specialists with over 20 years experience in shipbuilding industry, will help you find the right solution for your customized flanges.
Welding neck flange
Welding neck flange is distinguished from other types by their long tapered hub and gentle transition of thickness in the region of the butt weld joining them to the pipe. The long tapered hub provides an important reinforcement of the flange proper from the standpoint of strength and resistance to dishing.
This type of flange is preferred for every severe service condition, whether this results from high pressure or from sub-zero or elevated temperature, and whether loading conditions are substantially constant or fluctuate between wide limits.
Standard |
ANSI/ ASME B 16.5 |
|
Type |
Welding neck flange |
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Dimension |
1/2” NB TO 24” NB |
|
Wall thickness |
SCH 5s 10s 20s 30s 40s 80s 160s XXS |
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Material: |
Duplex steel |
A182 F51, UNS 31803/2205 |
Stainless steel |
304/304L 316/316L |
|
Alloy steel: |
A182 F1/ F5/ F9/ F11, F22 |
|
Carbon steel |
A105, A181 |
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Copper nickel |
90/30, 70/30 |
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Titanium alloy |
Gr2, Gr3, Gr5 |
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Pressure rate |
150 PSI |
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Application: |
Shipbuilding &Marine industry, Oil &gas industry, On/Off shore. |
|
Surface treatment |
Anit-oil, epoxy zinc rich primer(transparent/yellow/black), hot dipped galvanized and cold galvanized |
|
Certificate |
ISO9001:2008, CR, CCS,RS,BV,NK,RINA,LR,ABS,DNV,GL,TUV |
Warranty
We undertake to remedy any poor quality product, caused by low-quality Raw material or workman machine process or non-standard heat treatment for products Our liability is limited to replacing the defective products, which appear within a period of 12 months from date of invoice, provided from our storage, or produce new one