DIPTI METAL INDUSTRIES
Dipti Metal Industries is a Leading global EN 1092-1 Flange Manufacturer, EN 1092-1 PN 25 Flanges Supplier & EN 1092-1 PN 25 Flanges Exporter of flanges conforming to the European Standard EN 1092-1 in the PN 25 pressure rating (2.5 MPa / ~363 PSI). This class is a widely specified medium-pressure rating, comparable to ASME Class 150/300 but designed to metric standards, and is essential for process, chemical, and utility lines. We supply all compatible flange types (Type 01 Plate, Type 05 Blind, Type 11 Weld Neck, etc.) in a comprehensive size range from DN10 up to DN3000. We ensure material traceability and dimensional compliance for seamless integration into European and global piping networks. Our materials are sourced from the EN 10222 forging standard, guaranteeing certified performance.
Founded in 2009 in Mumbai, India, we are a global EN 1092-1 Flange Manufacturer and PN 25 Flange Exporter specializing in certified industrial flanges for international markets. Our manufacturing process guarantees that our PN 25 flanges adhere strictly to the dimensions, facing, and tolerances specified in the EN 1092-1 standard. We focus on efficiently supplying projects requiring large quantities of PN 25 flanges, covering the full DN range and ensuring all forgings are procured and certified to the comprehensive EN 10222 material specification.
The EN 1092-1 standard is the primary specification for circular steel flanges for piping in Europe. PN 25 (Nominal Pressure 25 Bar) is a critical medium-pressure rating, often used in sectors like power generation, chemical processing, and higher-pressure industrial steam lines. The standard specifies robust dimensions, precise bolt configuration, and material requirements to ensure durability and performance reliability across demanding European piping systems.
| Parameter | Specification |
|---|---|
| Design Standard | EN 1092-1:2018 |
| Nominal Pressure (PN) | PN 25 |
| Max Working Pressure | 2.5 MPa / 25 Bar / ~363 PSI |
| Flange Face | Type B1 (Raised Face) is common, but Types A and B2 are specified. |
| Common Flange Types | Type 01 (Plate), Type 05 (Blind), Type 11 (Weld Neck) |
PN 25 flanges are frequently selected for their versatility in handling higher industrial process pressures.
| Forging Standard | Material Categories |
|---|---|
| EN 10222-2 | Creep-Resistant Steels (e.g., P250GH, 16Mo3) |
| EN 10222-3 | Low-Temperature Steels (e.g., 12Ni14, X8Ni9) |
| EN 10222-4 | High-Yield Steels (e.g., P355NH, P285QH) |
| EN 10222-5 | Stainless & Duplex Steels (e.g., 1.4404, 1.4462) |
Materials are supplied with EN 10204 3.1 for use in pressure equipment (PED).
This comprehensive list details the various EN 10222 grades we supply and manufacture into PN 25 Flanges and other pressure components. All are sourced with certified EN 10204 3.1 documents.
| Material Name | Standard | Material Number | EN 10222 Part / Category |
|---|---|---|---|
| EN 10222-2: Creep-Resistant & High-Temp Steels | |||
| P250GH | EN 10222-2 | 1.0460 | General Pressure / High-Temp |
| P245GH | EN 10222-2 | 1.0352 | General Pressure / High-Temp |
| P280GH | EN 10222-2 | 1.0426 | General Pressure / High-Temp |
| 16Mo3 | EN 10222-2 | 1.5415 | Creep-Resistant / Mo Alloy |
| 13CrMo4-5 | EN 10222-2 | 1.7335 | Creep-Resistant / Cr-Mo Alloy |
| 11CrMo9-10 | EN 10222-2 | 1.7383 | Creep-Resistant / Cr-Mo Alloy |
| X16CrMo5-1+NT | EN 10222-2 | 1.7366 | Creep-Resistant / High Alloy |
| X20CrMoV11-1 | EN 10222-2 | 1.4922 | Creep-Resistant / High Alloy |
| X10CrMoVNb9-1 | EN 10222-2 | 1.4903 | Creep-Resistant / High Alloy (Grade 91) |
| EN 10222-3: Low-Temperature (Cryogenic) Steels | |||
| 15NiMn6 | EN 10222-3 | 1.6228 | Low-Temp / Fine Grain Steel |
| 13MnNi6-3 | EN 10222-3 | 1.6217 | Low-Temp / Fine Grain Steel |
| 12Ni14 | EN 10222-3 | 1.5637 | Low-Temp / 3.5% Nickel Steel |
| X12Ni5 | EN 10222-3 | 1.5680 | Low-Temp / 5% Nickel Steel |
| X8Ni9 | EN 10222-3 | 1.5662 | Low-Temp / 9% Nickel Steel (Cryogenic) |
| EN 10222-4: High-Yield Steels | |||
| P285NH | EN 10222-4 | 1.0477 | High-Yield / Normalized |
| P285QH | EN 10222-4 | 1.0478 | High-Yield / Quenched |
| P355NH | EN 10222-4 | 1.0565 | High-Yield / Normalized |
| P355QH1 | EN 10222-4 | 1.0571 | High-Yield / Quenched |
| EN 10222-5: Stainless & Duplex Steels | |||
| X2CrNi18-9 | EN 10222-5 | 1.4307 | Austenitic (304L Equivalent) |
| X2CrNiN18-10 | EN 10222-5 | 1.4311 | Austenitic (304N Equivalent) |
| X5CrNi18-10 | EN 10222-5 | 1.4301 | Austenitic (304 Equivalent) |
| X6CrNi18-10 | EN 10222-5 | 1.4948 | Austenitic (304H Equivalent) |
| X6CrNiTi18-10 | EN 10222-5 | 1.4541 | Austenitic (321 Equivalent) |
| X6CrNiNb18-10 | EN 10222-5 | 1.4550 | Austenitic (347 Equivalent) |
| X6CrNiTiB18-10 | EN 10222-5 | 1.4941 | Austenitic (Stabilized) |
| X2CrNiMo17-12-2 | EN 10222-5 | 1.4404 | Austenitic (316L Equivalent) |
| X2CrNiMo17-12-3 | EN 10222-5 | 1.4432 | Austenitic (316L High Mo) |
| X2CrNiMo18-14-3 | EN 10222-5 | 1.4435 | Austenitic (316L High Mo/Ni) |
| X2CrNiMoN17-11-2 | EN 10222-5 | 1.4406 | Austenitic (316LN Equivalent) |
| X2CrNiMoN17-13-3 | EN 10222-5 | 1.4429 | Austenitic (316LN High Mo) |
| X5CrNiMo17-12-2 | EN 10222-5 | 1.4401 | Austenitic (316 Equivalent) |
| X3CrNiMo17-13-3 | EN 10222-5 | 1.4436 | Austenitic (316 High Mo) |
| X6CrNiMoTi17-12-2 | EN 10222-5 | 1.4571 | Austenitic (316Ti Equivalent) |
| X2CrNiMoN22-5-3 | EN 10222-5 | 1.4462 | Duplex (2205 Equivalent) |
| X2CrNiMoN25-7-4 | EN 10222-5 | 1.4410 | Super Duplex (2507 Equivalent) |
The following table outlines the essential mating dimensions (in mm) for EN 1092-1 PN 25 Flanges, including the Outside Diameter (D), Bolt Circle Diameter (K), and Bolting details, critical for interchangeable assembly of Type 01, 05, 11, and other applicable types.
| DN | D (Outside Dia) | K (Bolt Circle Dia) | L (Bolt Hole Dia) | Bolting (Size) | N (Number of Bolts) |
|---|---|---|---|---|---|
| 10 | 90 | 60 | 14 | M12 | 4 |
| 15 | 95 | 65 | 14 | M12 | 4 |
| 20 | 105 | 75 | 14 | M12 | 4 |
| 25 | 115 | 85 | 14 | M12 | 4 |
| 32 | 140 | 100 | 18 | M16 | 4 |
| 40 | 150 | 110 | 18 | M16 | 4 |
| 50 | 165 | 125 | 18 | M16 | 4 |
| 65 | 185 | 145 | 18 | M16 | 8 |
| 80 | 200 | 160 | 18 | M16 | 8 |
| 100 | 235 | 190 | 22 | M20 | 8 |
| 125 | 270 | 220 | 26 | M24 | 8 |
| 150 | 300 | 250 | 26 | M24 | 8 |
| 200 | 360 | 310 | 26 | M24 | 12 |
| 250 | 425 | 370 | 30 | M27 | 12 |
| 300 | 485 | 430 | 30 | M27 | 16 |
| 350 | 555 | 490 | 33 | M30 | 16 |
| 400 | 620 | 550 | 36 | M33 | 16 |
| 450 | 670 | 600 | 36 | M33 | 20 |
| 500 | 730 | 660 | 36 | M33 | 20 |
| 600 | 845 | 770 | 39 | M36 | 20 |
| 700 | 960 | 875 | 42 | M39 | 24 |
| 800 | 1 085 | 990 | 48 | M45 | 24 |
| 900 | 1 185 | 1 090 | 48 | M45 | 28 |
| 1000 | 1 320 | 1 210 | 56 | M52 | 28 |
| 1200 | 1 555 | 1 420 | 62 | M56 | 32 |
| 1400 | 1 675 | 1 590 | 62 | M56 | 36 |
| 1600 | 1 915 | 1 820 | 68 | M64 | 40 |
| 1800 | 2 115 | 2 020 | 68 | M64 | 44 |
| 2000 | 2 325 | 2 230 | 68 | M64 | 48 |
| 2200 | 2 550 | 2 440 | 76 | M72 | 52 |
| 2400 | 2 760 | 2 650 | 76 | M72 | 56 |
| 2600 | 2 960 | 2 850 | 76 | M72 | 60 |
| 2800 | 3 180 | 3 070 | 76 | M72 | 64 |
| 3000 | 3 405 | 3 290 | 82 | M76 | 68 |
UNIT: mm. Data extracted from EN 1092-1 Table 12, focusing on the PN 25 Mating Dimensions (D, K, L, N, Size).
Dimensions apply across all applicable flange types for PN 25.
We manufacture all the primary flange types mandated by EN 1092-1 in the PN 25 pressure class, utilizing certified EN 10222 forging grades to ensure full interoperability for medium-pressure European systems.
The PN 25 class is essential for medium-pressure industrial and process applications requiring consistent performance across a wide range of sizes and fluid types.
As a global EN 1092-1 Flange Exporter and Supplier, Dipti Metal Industries efficiently services European and international projects requiring large volumes of PN 25 flanges for demanding industrial installations.
Contact Dipti Metal Industries today for certified EN 1092-1 PN 25 Flanges of all types (01, 05, 11, etc.). Provide your required Flange Type, Nominal Size (DN), and Material (e.g., P250GH or 1.4404) for a competitive, customized quote and expert technical support.
Company
Dipti Metal Industries
Address
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, Maharashtra, India
Phone +91-22-66381301 • +91-9975266499 (WhatsApp)
Email
info@diptimetal.com
•
diptimetal@gmail.com
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