DIN weld neck flanges are designed for butt-weld connections in industrial piping systems, providing a reliable connection for pipelines operating under different pressure and temperature conditions. Manufactured according to applicable DIN 2631–2638 standards, they are available in various nominal diameters and pressure ratings to meet different piping requirements.
Jinhang Pipeline supplies carbon steel, stainless steel and alloy steel DIN Weld Neck Flanges. Materials include ASTM A105, ASTM A182 F304/F316, F11, F22 and European standard grades. Sizes, pressure ratings and material grades of the products can all be customized according to project specifications and technical drawings.
| Item | Specification |
|---|---|
|
Product Name |
DIN Weld Neck Flange |
|
Flange Type |
Weld Neck Flange |
|
Standards |
DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 |
|
Nominal Diameter |
DN 10–DN 3600 |
|
Pressure Rating |
PN 6-PN 160 |
|
Carbon Steel |
St 37.2, S235JR, P245GH, P280GH, ASTM A105 |
|
Stainless Steel |
ASTM A182 F304, F304L, F316, F316L, F321, F51 |
|
Alloy Steel |
ASTM A182 F11, F12, F22; 16Mo3, 13CrMo4-5, 11CrMo9-10 |
|
Connection Type |
Butt Weld |
|
Customization |
Available |
|
Material Category |
Material Grades |
|---|---|
|
Carbon Steel |
St 37.2, S235JR, P245GH, P280GH, ASTM A105 |
|
Stainless Steel |
ASTM A182 F304, F304L, F316, F316L, F321, F51 |
|
Alloy Steel |
ASTM A182 F11, F12, F22; 16Mo3, 13CrMo4-5, 11CrMo9-10 |
DIN weld neck flanges are manufactured in accordance with applicable DIN 2631–2638 standards, covering flange dimensions and pressure ratings. Material standards such as ASTM A105, ASTM A182, and relevant European grades can be selected to meet project requirements and ensure compatibility with industrial piping systems.
Quality control focuses on material verification, dimensional accuracy, weld-end preparation, and surface inspection. These measures help ensure reliable installation, consistent product quality, and suitability for the intended operating conditions. Flange specifications are confirmed against the applicable standards and customer requirements.
Oil and Gas Industry: Pipeline systems for oil, natural gas, and related processing facilities.
Petrochemical Plants: Process piping for chemical and petrochemical production.
Power Generation: Steam, water, and high-temperature piping systems.
Chemical Processing: Industrial pipelines handling various process fluids.
Water Treatment: Water supply, treatment, and industrial distribution systems.
Industrial Manufacturing: Piping networks in factories and process plants.
What is a DIN weld neck flange?
A DIN weld neck flange features a tapered hub and a butt-weld connection for secure installation in industrial piping systems.
Which standards apply to DIN weld neck flanges?
Applicable standards include DIN 2631–2638, depending on the required pressure rating and dimensions.
What materials are available?
Available materials include carbon steel, stainless steel, and alloy steel, such as ASTM A105, ASTM A182 F304/F316, F11, and F22.
Can DIN weld neck flanges be customized?
Yes. Custom sizes, materials, and dimensions are available according to customer requirements and technical drawings.
Where are DIN weld neck flanges used?
Common applications include oil and gas pipelines, petrochemical plants, chemical processing facilities, power stations, and industrial piping systems.
Send us your drawings or requirements and get a fast quotation today.
