Jinhang Pipeline supplies JIS weld neck flanges manufactured in accordance with JIS B 2220. Designed for butt-weld connections, these flanges provide a secure connection between pipes and help distribute stress around the joint. They are available in various nominal sizes and pressure ratings to meet different piping system requirements.
Our JIS weld neck flanges can be supplied in carbon steel, stainless steel, and other materials according to project specifications. Customized sizes, materials, and dimensional requirements can be provided based on customer drawings and technical documents, supporting industrial piping projects in oil and gas, petrochemical, power generation, and other sectors.
| Item | Specification |
|---|---|
|
Product Name |
JIS Weld Neck Flange |
|
Standard |
JIS B 2220 |
|
Flange Type |
Weld Neck Flange |
|
Nominal Size |
10A-1500A |
|
Pressure Rating |
5K-63K |
|
Material |
Carbon steel SF390A ; S20C;A105 Stainless steel SUS F304/304L; SUSF316/316L; Alloy steel ASTM A182 F11/F12/F22;SFVA F1；SFVA F5；SFVA F9；SFVA F12；SFVA F11；SFVA F22 |
|
Connection Type |
Butt Welding |
|
Manufacturing Standard |
JIS B 2220 |
|
Customization |
Available |
|
Material Category |
Material Grades |
|---|---|
|
Carbon Steel |
SF390A ; S20C;A105 |
|
Stainless Steel |
SUS F304/304L; SUSF316/316L; |
|
Alloy Steel |
ASTM A182 F11/F12/F22;SFVA F1；SFVA F5；SFVA F9；SFVA F12；SFVA F11；SFVA F22 |
Jinhang Pipeline manufactures JIS weld neck flanges in accordance with JIS B 2220, which specifies requirements for steel pipe flanges, including dimensions and pressure ratings. Compliance with the applicable standard helps ensure dimensional compatibility and reliable integration into customer piping systems.
We control raw material selection, welding-end dimensions, flange machining, bolt hole positioning, and sealing surface quality throughout production. These checks help maintain dimensional accuracy, connection integrity, and consistent product quality to meet the requirements of industrial piping projects.
Oil and Gas Industry: Connecting pipes in oil and gas transportation systems.
Petrochemical Plants: Used in process piping for chemical and petrochemical production.
Power Generation: Connecting piping in power plants and utility systems.
Water Supply Systems: Used in industrial water supply and distribution pipelines.
Industrial Piping Systems: Suitable for piping connections requiring JIS-standard flanges.
Refineries: Used in process piping for petroleum refining and related operations.
What standard do JIS weld neck flanges follow?
JIS weld neck flanges are manufactured according to JIS B 2220, subject to the specified flange type and requirements.
What materials are available for JIS weld neck flanges?
They can be supplied in carbon steel, stainless steel, and alloy steel according to project requirements.
What pressure ratings are available for JIS weld neck flanges?
Common ratings include 5K-63K.
Can JIS weld neck flanges be customized?
Yes. We can customize products based on customer-provided drawings, dimensions, and technical specifications.
Which industries use JIS weld neck flanges?
They are used in oil and gas, petrochemical, power generation, water supply, and other industrial piping systems.
How do I select the right JIS weld neck flange?
Confirm the nominal size, pressure rating, material, facing type, and applicable standard to match your piping system requirements.
Send us your drawings or requirements and get a fast quotation today.
