DIN or as known in its elaborated form Deutsches Institut für Normung. DIN is a non profit institute that develops norms and standards as a service to several industries, to the state as well as to society as a whole. The DIN Flanges Dimensions are specified and are predominantly used in European countries. The standards developed by DIN lays down both general or detailed specifications for products such as flanges, in addition to procedures and services. PN is often accompanied by the term DIN, which is an acronym for Pressure Nominale.
DIN Flanges
DIN Flanges Dimensions
DIN Flanges Standards
The PN is used as a prefix to suggest the pressure rating of the Flanges. For instance, the DIN PN6 Flanges is designed to operate at up to 6 levels. While different grades may be used in the manufacture of DIN Standard Flanges, the most common materials include carbon steel, alloy steel and several different grades of stainless steel alloys. In comparison to most stainless steel grades, the Carbon Steel DIN Flange tends to cost lesser due to its low alloying cost. On the other hand, although the cost of Stainless Steel DIN PN40 Flanges is much higher, the alloys offer better corrosion resistance and mechanical properties while having excellent performance across a wide area.
Table of Content
DIN Flanges Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
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DIN Flanges Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
DIN Flanges Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
DIN Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Most common types of DIN Flanges | forged / Threaded / Screwed / Plate |
Production technique |
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Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove |
Special design | As per your drawing
AS, ANSI, BS, DIN and JIS |
Origin | Indian / West Europe / Japan / USA / Korean |
Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. DIN Flanges: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
Flange Nominal Diameter | Pressure Rating (PN) | |||||
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**Nominal BSP Pipe Size | PN6 | PN10 | PN16 | PN25 | PN40 | |
DN 10 | 75 | 90 | 90 | 90 | 90 | O.D. |
3/8″ | 50 | 60 | 60 | 60 | 60 | PCD (bolt circle) |
4 x 11 | 4 x 14 | 4 x 14 | 4 x 14 | 4 x 14 | # of holes x diam. of holes | |
DN 15 | 80 | 95 | 95 | 95 | 95 | O.D. |
1/2″ | 55 | 65 | 65 | 65 | 65 | PCD (bolt circle) |
4 x 11 | 4 x 14 | 4 x 14 | 4 x 14 | 4 x 14 | # of holes x diam. of holes | |
DN 20 | 90 | 105 | 105 | 105 | 105 | O.D. |
3/4″ | 65 | 75 | 75 | 75 | 75 | PCD (bolt circle) |
4 x 11 | 4 x 14 | 4 x 14 | 4 x 14 | 4 x 14 | # of holes x diam. of holes | |
DN 25 | 100 | 115 | 115 | 115 | 115 | O.D. |
1″ | 75 | 85 | 85 | 85 | 85 | PCD (bolt circle) |
4 x 11 | 4 x 14 | 4 x 14 | 4 x 14 | 4 x 14 | # of holes x diam. of holes | |
DN 32 | 120 | 140 | 140 | 140 | 140 | O.D. |
1 1/4″ | 90 | 100 | 100 | 100 | 100 | PCD (bolt circle) |
4 x 14 | 4 x 18 | 4 x 18 | 4 x 18 | 4 x 18 | # of holes x diam. of holes | |
DN 40 | 130 | 150 | 150 | 150 | 150 | O.D. |
1 1/2″ | 100 | 110 | 110 | 110 | 110 | PCD (bolt circle) |
4 x 14 | 4 x 18 | 4 x 18 | 4 x 18 | 4 x 18 | # of holes x diam. of holes | |
DN 50 | 140 | 165 | 165 | 165 | 165 | O.D. |
2″ | 110 | 125 | 125 | 125 | 125 | PCD (bolt circle) |
4 x 14 | 4 x 18 | 4 x 18 | 4 x 18 | 4 x 18 | # of holes x diam. of holes | |
DN 65 | 160 | 185 | 185 | 185 | 185 | O.D. |
2 1/2″ | 130 | 145 | 145 | 145 | 145 | PCD (bolt circle) |
4 x 14 | 4 x 18 | 4 x 18 | 8 x 18 | 8 x 18 | # of holes x diam. of holes | |
DN 80 | 190 | 200 | 200 | 200 | 200 | O.D. |
3″ | 150 | 160 | 160 | 160 | 160 | PCD (bolt circle) |
4 x 18 | 8 x 18 | 8 x 18 | 8 x 18 | 8 x 18 | # of holes x diam. of holes | |
DN 100 | 210 | 220 | 220 | 235 | 235 | O.D. |
4″ | 170 | 180 | 180 | 190 | 190 | PCD (bolt circle) |
4 x 18 | 8 x 18 | 8 x 18 | 8 x 22 | 8 x 22 | # of holes x diam. of holes | |
DN 125 | 240 | 250 | 250 | 270 | 270 | O.D. |
5″ | 200 | 210 | 210 | 220 | 220 | PCD (bolt circle) |
8 x 18 | 8 x 18 | 8 x 18 | 8 x 26 | 8 x 26 | # of holes x diam. of holes | |
DN 150 | 265 | 285 | 285 | 300 | 300 | O.D. |
6″ | 225 | 240 | 240 | 250 | 250 | PCD (bolt circle) |
8 x 18 | 8 x 22 | 8 x 22 | 8 x 26 | 8 x 26 | # of holes x diam. of holes | |
DN 175 | 315 | 315 | 330 | 350 | O.D. | |
7″ | 270 | 270 | 280 | 295 | PCD (bolt circle) | |
8 x 22 | 8 x 22 | 12 x 26 | 12 x 30 | # of holes x diam. of holes | ||
DN 200 | 320 | 340 | 340 | 360 | 375 | O.D. |
8″ | 280 | 295 | 295 | 310 | 320 | PCD (bolt circle) |
8 x 18 | 8 x 22 | 12 x 22 | 12 x 26 | 12 x 30 | # of holes x diam. of holes | |
DN 250 | 375 | 395 | 405 | 425 | 450 | O.D. |
10″ | 335 | 350 | 355 | 370 | 385 | PCD (bolt circle) |
12 x 18 | 12 x 22 | 12 x 26 | 12 x 30 | 12 x 33 | # of holes x diam. of holes | |
DN 300 | 440 | 445 | 460 | 485 | 515 | O.D. |
12″ | 395 | 400 | 410 | 430 | 450 | PCD (bolt circle) |
12 x 22 | 12 x 22 | 12 x 26 | 16 x 30 | 16 x 33 | # of holes x diam. of holes | |
DN 350 | 490 | 505 | 520 | 555 | 580 | O.D. |
14″ | 445 | 460 | 470 | 490 | 510 | PCD (bolt circle) |
12 x 22 | 16 x 22 | 16 x 26 | 16 x 33 | 16 x 36 | # of holes x diam. of holes | |
DN 400 | 540 | 565 | 580 | 620 | 660 | O.D. |
16″ | 495 | 515 | 525 | 550 | 585 | PCD (bolt circle) |
16 x 22 | 16 x 26 | 16 x 30 | 16 x 36 | 16 x 39 | # of holes x diam. of holes | |
DN 500 | 645 | 670 | 715 | 730 | 755 | O.D. |
20″ | 600 | 620 | 650 | 660 | 670 | PCD (bolt circle) |
20 x 22 | 20 x 26 | 20 x 33 | 20 x 36 | 20 x 42 | # of holes x diam. of holes | |
DN 600 | 755 | 780 | 840 | 845 | O.D. | |
24″ | 705 | 725 | 770 | 770 | PCD (bolt circle) | |
20 x 24 | 20 x 27 | 20 x 33 | 20 x 36 | # of holes x diam. of holes |
DIN PN6 Flanges | US $0.5-1000 / Piece (FOB Price) |
DIN PN10 Flanges | US $300-500 / Ton (FOB Price) |
DIN PN16 Flanges | US $1-900 / Piece (FOB Price) |
DIN PN25 Flanges | US $0.5-1000 / Piece (FOB Price) |
DIN PN40 Flanges | US $1-300 / Piece (FOB Price) |