EN 1092-1 is the European system: size as DN, rating as PN, and the flange form given as a numbered type - 01 for the plate flange, 05 for blind, 11 for weld neck and so on. DIN references still appear on older drawings and are quoted from the same data.
Common ratings are PN 10, 16, 25, 40, 63 and 100; we make up to PN 400, and PN 160, 250, 320 and 400 and the other PN steps are quoted from the EN 1092-1 tables against your DN and type. Materials are usually the European pressure grades such as P250GH and P280GH, with ASTM A105 and A350 LF2 offered as reviewed equivalents, plus stainless and duplex grades.
Type number, DN, PN, bore, face and drilling all have to agree with the mating component - a Type 01 and a Type 11 at the same DN and PN are not interchangeable in the line. Documentation follows the European habit: MTC EN 10204 3.1, a dimensional report, marking, face finish, and the document set the project expects where the equipment falls under PED.
Product family: Flanges
EN and DIN flange RFQs are reviewed by DN, PN, type, sealing face, material grade, quantity and document requirement.
| Scope and rating | |
|---|---|
| PN-based scope | EN/DIN RFQs are reviewed by DN, PN, Type, facing and material; common ratings include PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100, and we make up to PN 400. |
| Standards and materials | |
| Standards / drawings |
|
| Material grades |
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| Geometry, tolerance and inspection | |
| Critical dimensions | DN, PN, Type 01/05/11 or drawing type, bore, face, bolt pattern and surface finish. |
| Inspection depth | MTC EN 10204 3.1, dimensional report, marking, face finish and PED-related documentation where applicable. |
| Reviewed before quotation |
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| Buying logic | |
| Best-fit RFQ | Best for European PN-based flange requirements under EN 1092-1 or DIN references. |
| Buyer application | European industrial piping, pump connections, pressure equipment and distributor replacement line items. |
Your standard, drawing revision and project specification govern.
Also known as
We confirm each step against your drawing or standard before we quote.
Material grade, heat number, certificate basis and substitution limits are checked against the EN / DIN Flanges drawing or standard before procurement is released.
The forging route is selected around flange type, section thickness, bore allowance, hub or neck geometry and pressure-service requirements.
Heat treatment is planned with the required record package, mechanical testing basis and impact-test condition where low-temperature or alloy service applies.
Rough machining opens reference faces, bore, hub, neck or sealing-face stock needed to control allowance before final flange machining.
Final machining controls facing, bore, bolt pattern, groove, sealing surface and flange-table or drawing tolerances before dimensional inspection is issued.
Inspection covers dimensional report, MTC 3.1, PMI and required UT, MT or PT records before the release documents are matched to the purchase order.
Marking, packing and export documents are prepared by PO line item so the EN / DIN Flanges shipment can clear customs and be identified at site receiving.
List document requirements in the first RFQ; they affect price and schedule.
No. Type number, DN, PN, bore, face and drilling all have to agree with the mating component; a Type 01 plate flange and a Type 11 weld neck at the same DN and PN are not interchangeable in the line.
Common ratings are PN 10, 16, 25, 40, 63 and 100, and we make up to PN 400; PN 160, 250, 320 and 400 and the other PN steps are quoted from the EN 1092-1 tables against your DN and type.
Yes. DIN references still appear on older drawings and are quoted from the same data as EN 1092-1, with DN, PN, type, face and drilling confirmed against the drawing.
Yes. Those European pressure grades are the usual choice, with ASTM A105 and A350 LF2 offered as reviewed equivalents, plus stainless and duplex grades. P250GH to EN 10222-2 is within our AD 2000-Merkblatt W 0 material manufacturer recognition from TÜV NORD Systems.
Forged flanges and hot-formed forgings in non-alloyed and alloyed steel, up to 400 mm thick and 7,000 kg, under our PED 2014/68/EU material manufacturer quality-system certificate from TÜV NORD Systems (notified body 0045). Stainless steel is not in its scope.
Email quote@bldforgedirect.com with standard, drawing, material, quantity and inspection requirements.