Original
By certification 
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.
GOST 12821-80 Flange
Gost flange is a flange system from Russia, include Plate Flanges(GOST12820-80),Blind Flanges(GOST12836-67),Welding neck Flanges(GOST12821-80), Steel Butt-Welded Flanges GOST12821-80 etc., size from DN10 to DN1600, Plate flange, welding neck flange, slip on welding plate flange.
| Standard | GOST STANDARD |
|
Type |
GOST 12821-20 Flange |
|
Dimension |
DN10～DN1600 |
|
Wall thickness |
SCH 5s 10s 20s 30s 40s 80s 160s XXS |
|
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 |
|
Copper nickel |
90/30, 70/30 |
|
Titanium alloy |
Gr2, Gr3, Gr5 |
|
Pressure rate |
PN6 |
|
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
