Weld-neck flanges
Weld-neck flanges provide a bolted joint with a tapered hub that is welded to the pipe.
Supplier photograph: Stattin Stainless Table E blind flange. Representative configuration; the dimensions and ratings below apply to the identified reference model. Confirm the exact supplied item with your quote.
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Blind flanges
Blind flanges close the end of a compatible flanged connection while allowing later access.
Common uses
Pipe ends, vessel nozzles and temporary or permanent isolation points.
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Product information
Specifications & documents
- Configuration options
- Different standards, pressure classes, face types and materials.
- Application
- Pipe ends, vessel nozzles and temporary or permanent isolation points.
Use the dimension tables below to select a standard and size. Confirm material, tolerance and operating limits for the offered item.
Technical references
- AS 2129 dimension reference ↗Drawing / dimensions · Confirm document region for the quoted product · Current revision confirmed with quotation
- Table E cross-reference ↗Manufacturer / supplier reference · Confirm document region for the quoted product · Current revision confirmed with quotation
- AS 2129 dimension reference ↗Drawing / dimensions · Confirm document region for the quoted product · Current revision confirmed with quotation
- Table D cross-reference ↗Manufacturer / supplier reference · Confirm document region for the quoted product · Current revision confirmed with quotation
- AS 2129 dimension reference ↗Drawing / dimensions · Confirm document region for the quoted product · Current revision confirmed with quotation
- Table F cross-reference ↗Manufacturer / supplier reference · Confirm document region for the quoted product · Current revision confirmed with quotation
- AS 2129 dimension reference ↗Drawing / dimensions · Confirm document region for the quoted product · Current revision confirmed with quotation
- Table H cross-reference ↗Manufacturer / supplier reference · Confirm document region for the quoted product · Current revision confirmed with quotation
Size reference
Flange dimensions & drilling
Choose a standard and size to check the reference dimensions. Use the measurements that match your existing part or project specification.
| Nominal size | Flange OD | PCD | Hole count | Hole Ø |
|---|---|---|---|---|
| DN15 | 95 | 67 | 4 | 14 |
| DN20 | 100 | 73 | 4 | 14 |
| DN25 | 115 | 83 | 4 | 14 |
| DN32 | 120 | 87 | 4 | 14 |
| DN40 | 135 | 98 | 4 | 14 |
| DN50 | 150 | 114 | 4 | 18 |
| DN65 | 165 | 127 | 4 | 18 |
| DN80 | 185 | 146 | 4 | 18 |
| DN90 | 205 | 165 | 8 | 18 |
| DN100 | 215 | 178 | 8 | 18 |
| DN125 | 255 | 210 | 8 | 18 |
| DN150 | 280 | 235 | 8 | 22 |
| DN200 | 335 | 292 | 8 | 22 |
| DN250 | 405 | 356 | 12 | 22 |
| DN300 | 455 | 406 | 12 | 26 |
| DN350 | 525 | 470 | 12 | 26 |
| DN400 | 580 | 521 | 12 | 26 |
| DN450 | 640 | 584 | 16 | 26 |
| DN500 | 705 | 641 | 16 | 26 |
| DN550 | 760 | 699 | 16 | 30 |
| DN600 | 825 | 756 | 16 | 33 |
Drilling reference only. Bore and thickness depend on flange form, material and matching pipe; a blind flange has no through-bore. Matching a bolt pattern does not establish a pressure rating.
Dimension sources and scope
AS 2129 common sizes DN15–600. Outside diameter and drilling were compared across two published technical references. Any conflicting entry is withheld pending the mating-flange drawing. PE stub dimensions and backing-ring bore are separate. Other standards, Table J and unlisted sizes can be entered in the enquiry fields.
Reference checked September 2026. Final dimensions, tolerances, material and operating rating are confirmed for the offered item.
Choose the right variant
Details to confirm
- Flange drilling and pressure class
- Face type and material
- Gasket and fastener requirements
Selection note
Match the complete joint to the design duty; a blind flange is a pressure-retaining component.
These details describe the product family. The offered item’s dimensions, materials, operating limits and required approvals are confirmed before you order.
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