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Weld Neck Flange DN25 PN40 316L EN 1092-1
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Description
Weld Neck Flange DN25 PN40 316L EN 1092-1
- Size: DN25 (for 33.7 mm pipe)
- Pressure rating: PN40
- Material: 316L stainless steel (marked 1.4401 / 1.4404)
- Manufactured according to: EN 1092-1
- Weld neck flange
- Stainless steel suitable for welding

Alternative Name: Weld Neck Flange DN25 PN40 316L EN 1092-1, 33.7 mm stainless steel weld neck flange, 1'' pipe flange, 1.4401 / 1.4404 inox flange, acid-resistant pipe welding flange.
Information
Weld Neck Flange DN25 PN40 316L EN 1092-1 is designed for butt welding and is used to connect pipes, valves, pumps, pressure vessels, and industrial equipment. The tapered hub provides excellent strength and stress distribution, ensuring a durable, leak-tight connection in pressure piping systems.
316 / 316L Stainless Steel
316 / 316L stainless steel (1.4401 / 1.4404) is a highly corrosion-resistant austenitic stainless steel offering excellent weldability and formability. It provides superior resistance to chlorides, seawater, and aggressive chemicals compared with standard 304 stainless steel.
Equivalent grades: DIN 1.4401, 1.4404, SS316, SS316L, AISI 316, AISI 316L.
Advantages of 316 / 316L Stainless Steel
- Excellent corrosion resistance
- Outstanding weldability
- Non-magnetic
- Excellent ductility
- High impact strength
- Wide operating temperature range
Applications
- Heat exchangers
- Pharmaceutical equipment
- Dairy processing equipment
- Brewing industry
- Marine installations
- Coastal structures
- Food processing industry
- Pressure vessels
- Industrial piping systems
We also offer weld neck flanges and stainless steel rings in other sizes. If you have any questions, please contact us. Call +48 63 261 42 02 or email biuro@polberis.pl.
Weld Neck Flange DN25 PN40 316L EN 1092-1 is also available in other sizes from our product range.
Learn more about flanges here >>
Technical data
| Manufacturing Standard | EN & DIN Standards |
| Flange Type | Welding Neck (WN) |
| Steel Grade | 316L ~ 1.4404 |
| Material | Stainless Steel |
| Size | DN25 ~ 1'' ~ 33,7mm |
Safety
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