GOST blind flanges are designed to close pipe ends, isolate pipeline sections, and seal openings in industrial piping systems. Manufactured to applicable GOST 12836 and GOST 34785 requirements, they are available in nominal diameters from DN 10 to DN 1200 and pressure ratings from PN 1 to PN 160, subject to the applicable standard and size-pressure combination.
Jinhang Pipeline supplies GOST blind flanges in carbon steel, stainless steel, and alloy steel for oil and gas, petrochemical, power generation, and other industrial applications. Available materials include P235GH, P245GH, P265GH, ASTM A182 F304/304L, F316/316L, F321, F51, F11, F12, and F22, as well as 16Mo3 and other specified grades. Custom material and dimensional requirements can be discussed according to project specifications.
| Item | Specification |
|---|---|
|
Product Name |
GOST Blind Flange |
|
Applicable Standards |
GOST12836/34785 |
|
Nominal Diameter |
DN 10–DN 1200 |
|
Pressure Rating |
PN 1–PN 160 |
|
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 |
| 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 blind flanges manufactured in accordance with applicable GOST 12836 and GOST 34785 requirements. Dimensions, nominal pressure ratings, and flange specifications are selected according to the applicable standard and project requirements to ensure compatibility with industrial piping systems.
Material grades, manufacturing processes, dimensional tolerances, and surface quality are controlled according to the specified technical requirements. Material certificates and inspection records can be provided as agreed to support quality verification and help ensure the blind flanges meet project specifications.
Oil and Gas Industry: Sealing pipelines and isolating sections for maintenance.
Petrochemical Plants: Closing pipe ends in process piping systems.
Power Generation: Sealing pipelines in steam and utility systems.
Chemical Processing: Isolating pipeline sections in industrial process systems.
Water Supply and Treatment: Closing pipeline openings in water distribution systems.
Industrial Piping Systems: Providing secure pipe-end closure for testing, maintenance, and future expansion.
What standards do GOST blind flanges comply with?
Our GOST blind flanges are supplied according to applicable GOST 12836 and GOST 34785 requirements.
What sizes are available for GOST blind flanges?
Nominal diameters range from DN 10 to DN 1200.
What pressure ratings are available?
Pressure ratings range from PN 1 to PN 160.
What materials are available for GOST blind flanges?
Available materials include carbon steel, stainless steel, and alloy steel, with grades such as P245GH, P265GH, ASTM A182 F316L, F321, F51, F11, F22, and 16Mo3.
Can you customize GOST blind flanges?
Yes. We can customize products according to customer-provided dimensions, material requirements, and project specifications.
Which industries use GOST blind flanges?
They are used in oil and gas, petrochemical, power generation, chemical processing, water treatment, and industrial piping systems.
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.
