GOST slip-on flanges are designed for flange connections in industrial piping systems. They are manufactured in accordance with applicable GOST standards including GOST 33259, with nominal diameters ranging from DN 10 to DN 2400 and nominal pressure ratings from PN 1 to PN 25.
Jinhang Pipeline supplies GOST slip-on flanges in carbon steel, stainless steel and alloy steel, suitable for oil, natural gas, petrochemical, power and other industrial sectors. Available material grades include P235GH, P245GH, ASTM A182 F304/304L, F316/316L, F321, F51, F11, F12, F22, 16Mo3 and 13CrMo4-5. Custom sizes and material options are also available upon project requirements.
| Item | Specification |
|---|---|
|
Product Name |
GOST Flat Welding Flange |
|
Standard |
GOST12820/33259 |
|
Nominal Diameter |
DN 10–DN 2400 |
|
Nominal Pressure |
PN 1–PN 25 |
|
Carbon Steel |
P235GH, P245GH, P250GH, P265GH, P280GH |
|
Stainless Steel |
ASTM A182 F304/F304L, F316/F316L, F321, F51 |
|
Alloy Steel |
ASTM A182 F11/F12/F22, 16Mo3, 13CrMo4-5, 11CrMo9-10 |
|
Connection Type |
Flat welding |
|
Dimensions |
Customization |
| 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 |
GOST flat welding flanges are manufactured in accordance with GOST 33259 and applicable dimensional requirements. Material specifications, nominal diameters and pressure ratings are selected to meet project requirements and ensure compatibility with industrial piping systems.
Quality control covers raw material verification, welding processes, dimensional tolerances and surface inspection. These measures help ensure conformity with specified requirements, reliable flange connections and consistent product quality for industrial applications.
Oil and Gas Industry: For connecting pipelines in oil and gas processing and transportation systems.
Petrochemical Industry: Used in chemical processing plants and petrochemical pipelines.
Power Generation: Suitable for piping systems in thermal power plants and boiler installations.
Water Supply and Treatment: Used in industrial water supply, drainage and water treatment systems.
Chemical Industry: For pipeline connections in chemical production and fluid handling systems.
Industrial Manufacturing: Applied in process piping systems across various manufacturing facilities.
Heating Systems: Used in industrial heating networks and hot water pipelines.
What sizes are available for GOST flat welding flanges?
Nominal diameters range from DN 10 to DN 2400, subject to applicable standard requirements and availability.
What pressure ratings are available?
Available nominal pressure ratings range from PN 1 to PN 25, depending on flange size and the applicable standard.
What materials are available?
Options include carbon steel, stainless steel and alloy steel, such as P235GH, P265GH, ASTM A182 F304/304L, F316/316L, F321, F51, F11, F12 and F22.
Can you customize GOST flat welding flanges?
Yes, we can customize products according to customer-provided specifications, drawings and project requirements.
Which industries use GOST flat welding flanges?
They are used in oil and gas, petrochemical, power generation, chemical processing, water treatment and industrial piping systems.
How do you ensure product quality?
We perform material verification, dimensional inspections and surface quality checks according to applicable specifications and customer requirements.
Can you provide material certificates and inspection documents?
Yes. Material certificates and inspection documents can be provided as agreed in the order requirements.
Send us your drawings or requirements and get a fast quotation today.
