Jinhang Pipeline supplies GOST weld neck flanges manufactured to applicable GOST 33259 and GOST 12821 requirements. Available nominal sizes range from DN 10 to DN 1600, with pressure ratings from PN 1 to PN 200, subject to the applicable standard and flange specifications. These flanges are designed for butt-weld connections in industrial piping systems.
Material options include carbon steel grades P235GH, P245GH, P250GH, P265GH and P280GH; stainless steel grades ASTM A182 F304/304L, F316/316L, F321 and F51; and alloy steel grades ASTM A182 F11, F12 and F22, as well as 16Mo3, 13CrMo4-5 and 11CrMo9-10. Jinhang Pipeline provides flange solutions for oil and gas, petrochemical, power generation and other industrial applications, with specifications selected according to project requirements.
| Item | Specification |
|---|---|
|
Product Name |
GOST Weld Neck Flange |
|
Standard |
GOST12821/33259 |
|
Nominal Diameter |
DN 10–DN 1600 |
|
Nominal Pressure |
PN 1–PN 200 |
|
Flange Type |
Weld Neck Flange |
|
Connection Type |
Butt Welding |
|
Carbon Steel |
P235GH, P245GH, P250GH, P265GH, P280GH |
|
Stainless Steel |
ASTM A182 F304/304L, F316/316L, F321, F51 |
|
Alloy Steel |
ASTM A182 F11/F12/F22, 16Mo3, 13CrMo4-5, 11CrMo9-10 |
|
Dimensions |
Customization |
|
Customization |
Available |
| Material Category | Material Grade |
|---|---|
| Carbon Steel | Сталь 20, Ст3сп, ASTM A105, A350 LF1/LF2 |
| Stainless Steel | 08Х18Н10Т, 10Х17Н13М3Т, ASTM A182 F316 / 316L, F51 |
| Alloy Steel | 15ХМ, 10Х2М1А, ASTM A182 F11, F22 |
Jinhang Pipeline supplies GOST weld neck flanges manufactured in accordance with applicable GOST 33259 and GOST 12821 requirements. Flange dimensions, pressure ratings and connection specifications are selected according to the applicable standard and project requirements to support compatibility with industrial piping systems.
Material selection, forging, machining, dimensional tolerances and surface inspection are controlled according to the applicable technical specifications and agreed quality requirements. These controls help ensure dimensional accuracy, reliable welded connections and consistent product quality for oil and gas, petrochemical, power generation and other industrial projects.
Oil and Gas Industry: Pipeline systems for oil, natural gas and gas processing facilities.
Petrochemical Plants: Process piping for petrochemical production and refining.
Power Generation: Steam, water and process piping in power plants.
Chemical Industry: Piping systems for chemical processing and industrial fluids.
Industrial Pipelines: High-pressure piping connections in industrial facilities.
Water Supply and Utilities: Flanged connections in industrial water supply and distribution systems.
What standards do GOST weld neck flanges comply with?
GOST weld neck flanges are available to applicable GOST 33259 and GOST 12821 requirements, depending on the specified design and project requirements.
What sizes are available for GOST weld neck flanges?
The available nominal diameter range is DN 10 to DN 1600, subject to the applicable standard and product specifications.
What pressure ratings are available?
Pressure ratings range from PN 1 to PN 200, depending on flange size, design and applicable standard.
What materials are available for GOST weld neck flanges?
Available materials include carbon steel, stainless steel and alloy steel, with grades selected according to project requirements.
Can you customize GOST weld neck flanges?
Yes, we can customize flanges according to customer-provided drawings, dimensions, materials and technical specifications.
Which industries use GOST weld neck flanges?
They are used in oil and gas, petrochemical, chemical processing, power generation and other industrial piping systems.
Send us your drawings or requirements and get a fast quotation today.
