DIN Flanges

  • Size: 1/2″ thru 24″ or custom size.
  • Material: Nickel Alloy,Hastelloy Alloy,Monel Alloy,Inconel Allo, Anti-Corrosion Resistant Alloy, Super-Alloy, Duplex Steel, Stainless steel, Titanium Alloy, Copper Alloy, Carbon Steel, Aluminium Steel, ect.
  • Standard: A WWA C207, ASME B16.5, DIN, BS, JIS, EN1092-1, ASME B16.47 and GOST/ГОСТ Standard, etc..
  • Approved by CE, RoHs, SGS, BV
  • Large stock with different sizes

DIN Flanges Solutions

DIN flanges are standardized flanges that are commonly used in Europe. They are designed to conform to the Deutsches Institut für Normung (DIN) standards, which are a set of technical rules and guidelines for the engineering and manufacturing industries in Germany. DIN flanges are used in a wide range of applications, including piping, valves, and fittings. There are several different types of DIN flanges, including slip-on flanges, weld neck flanges, and blind flanges. Each type of DIN flange has its own unique features and benefits, and is designed for use in specific applications. For example, slip-on flanges are often used in low-pressure applications, while weld neck flanges are commonly used in high-pressure applications. It is important to choose the right type of DIN flange for your application in order to ensure a secure and reliable connection.

Table of Contents

What are DIN Flanges?

DIN flanges are a type of flange that conforms to the dimensional standards set by the Deutsches Institut für Normung (DIN), a German national standards organization. DIN flanges are commonly used in Europe and other parts of the world, and they are available in a range of sizes and pressure ratings to suit different applications. These flanges are typically made from forged steel and are used to connect pipes and other equipment in industrial and commercial piping systems.

Standard Specication For DIN Flanges

  • Dimensions: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • Size : 1/2″ (15 NB) to 48″ (1200NB)
  • Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
  • DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629,
  • DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
  • BS : BS4504 , BS4504, BS1560, BS10
  • Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Advantages and disadvantage of DIN Flanges

DIN (Deutsches Institut für Normung) flanges are known for their strength, durability and reliability. Some of the advantages of DIN flanges include:

  • They are strong and durable for high pressure and high temperature applications.
  • They are compatible with a wide range of pipe sizes and materials, making them suitable for use in different piping systems.
  • They are easy to install and maintain, reducing the overall cost of the piping system.
  • They have a simple and clean design, making them easy to inspect and troubleshoot in the event of a problem.

Some potential disadvantages of DIN flanges include:

  • They may not be available in all sizes and materials, making it difficult to find the right flange for your specific application.
  • They may be more expensive than other types of flanges, depending on size, material and other factors.
  • They may require special tools and equipment for installation, which can add to the overall cost of the piping system.

DIN flanges are a reliable and durable choice for use in piping systems. However, it is important to carefully consider your specific needs and requirements before deciding if they are right for your application.

What are the different types of DIN flanges?

DIN flanges are designed to conform to specific German standards and are often used in conjunction with other types of flanges, such as ANSI flanges, to create a secure and leak-free connection in a piping system. There are several different types of DIN flanges, each with its own unique features and uses. Some of the most common types of DIN flanges include:

  • DIN Slip-On Flanges – These flanges are designed to be slipped over the end of a pipe and then welded in place. They are easy to install and provide a secure connection between the pipe and the flange.
  • DIN Weld Neck Flanges – These flanges are designed to be welded to the end of a pipe, creating a strong and leak-free connection. They are commonly used in high pressure or high temperature applications where a secure connection is essential.
  • DIN Blind Flanges – These flanges are used to seal off the end of a pipe or fitting. They are often used in conjunction with other types of flanges, such as slip-on or weld neck flanges, to create a secure connection.
  • DIN Threaded Flanges – These flanges are designed to be threaded onto the end of a pipe, allowing for easy installation and removal. They are commonly used in low pressure applications where a quick connection is needed.
  • DIN Lap Joint Flanges – These flanges are designed to be used with a stub end fitting, which is welded to the end of the pipe. The flange is then slipped over the stub end and bolted in place, creating a secure and leak-free connection.
  • DIN Ring Joint Flanges – DIN ring joint flanges are a type of flange that is used in piping systems. They are designed to be used with ring joint gaskets, which are designed to be seated in the grooves of the flange. The advantage of using DIN ring joint flanges is that they provide a high level of sealing performance, which makes them suitable for use in high-pressure and high-temperature applications. They are commonly used in the oil and gas industry, as well as in other industries where a reliable seal is required.
  • DIN Plate flanges: Plate flanges are the most commonly used type of DIN flange. They are flat, circular flanges that are typically made from a single piece of metal. Plate flanges are often used in applications where the flange needs to be welded to the pipe, such as in high-pressure piping systems.

In addition to these common types of DIN flanges, there are also several other less commonly used types, such as DIN Long Weld Neck Flanges, and DIN Spectacle Blind Flanges.

  • DIN Long Weld Neck Flanges – A DIN Long Weld Neck Flange has a long neck that extends from the base of the flange, which allows for a smooth transition between the flange and the pipe. This design helps to distribute the stress from the flange evenly along the length of the pipe, which helps to prevent leaks and increase the overall strength of the connection. DIN Long Weld Neck Flanges are commonly used in high-pressure and high-temperature applications, such as in power plants and other industrial settings.
  • DIN Spectacle Blind Flanges – A DIN spectacle blind flange is a type of flange that is used in piping systems. It consists of two metal discs that are attached to each other with a small metal bar or rod. One of the discs has a hole in the center, and the other disc is solid. This allows the flange to be used to either completely block off a section of pipe, or to allow fluid to flow through the pipe by removing the solid disc.

DIN flanges are a versatile and widely-used type of flange that can be found in many different types of piping systems. They are designed to conform to specific German standards and are available in a wide range of sizes and materials, making them suitable for a variety of applications.

Material of DIN Flanges

DIN Flanges are typically made from cast or forged carbon steel, stainless steel, or other alloy materials. The specific material used will depend on the application and the design specifications of the flange. It is important to choose the right material for a flange to ensure that it is strong and durable enough to handle the pressure and temperature conditions it will be subjected to in service.  

Stainless Steel DIN Flanges ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Alloy Steel DIN slip on Flanges ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Carbon Steel DIN Flanges EN 1092-1 ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Inconel Large DIN 2527 Blind Flange ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 BS 10
Monel DIN 2573 Flat Flange ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Titanium DIN 2502 Pn16 Flange ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7 ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Hastelloy C22 DIN Flanges raised face ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Alloy 20 DIN 2503 Flange ASTM B462 / ASME SB462, Carpenter 20 Alloy, Alloy 20Cb-3
Aluminium DIN Flanges 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Alloy DIN Flat Flange ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
254 Smo DIN 2630 Wn Flanges SMO 254/6Mo, ASTM A182 / ASME SA182, UNS S31254, DIN 1.4547
Other Flanges material Aluminium bronze, Tin bronze, Lead bronze
Super Duplex Steel DIN 2512 Flanges tongue groove S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Nimonic Flange DIN 2631 Pn6 Nimonic 75, Nimonic 80A, Nimonic 90
Copper DIN 2632 Pn10 Flange T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel DIN 2633 Weld Neck Flange ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Incoloy DIN 2634 Pn25 Flange ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925
Duplex Steel DIN 2512 Flanges tongue groove S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Brass DIN 2635 Pn40 Flange 3602 / 2604 / H59 / H62 / etc.

Size of DIN Flanges

The size of a DIN flange is determined by the diameter of the flange and the pressure rating of the flange. The diameter of a DIN flange is usually specified in millimeters and can range from 15mm to over 2000mm. The pressure rating of a DIN flange is specified in bar, which is a unit of pressure. The pressure rating of a DIN flange can range from 1 bar to over 400 bar, depending on the specific type of flange.

Dimensions of DIN Flanges

The dimensions of DIN flanges vary depending on the specific type of flange and the size of the flange. For example, a DIN 2501 PN10 flange has a flange diameter of 110 millimeters and a bolt circle diameter of 90 millimeters, while a DIN 2566 PN16 flange has a flange diameter of 250 millimeters and a bolt circle diameter of 210 millimeters.
It’s important to note that DIN flanges come in many different sizes and dimensions, so it’s best to consult the specific DIN flange standard or the manufacturer’s specifications to determine the exact dimensions of a particular DIN flange.
 

DIN Flange Dimensions PN 6

Flange Nominal Diameter Pressure Rating (PN)
**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 Flange Dimensions PN10/ DIN Flange Dimensions PN 16/ DIN Flange Dimensions PN 40/ DIN Flange Dimensions PN 64

PN10

Nominal in Pipe Size in MM O.D. of Flanges Flange Thickness Dia of Bot Circle No. of Bolts Hole Diameter
1/2″ 15 95 14 65 4 14
3/4″ 20 105 16 75 4 14
1″ 25 115 16 85 4 14
1.1/4″ 32 140 16 100 4 18
1.1/2″ 40 150 16 110 4 18
2″ 50 165 18 125 4 18
2.1/2″ 65 185 18 145 4 18
3″ 80 200 20 160 4 18
4″ 100 220 20 180 8 18
5″ 125 250 22 210 8 18
6″ 150 285 22 240 8 23
8″ 200 340 24 295 8 23
10″ 250 395 26 350 12 23
12″ 300 445 26 400 12 23
14″ 350 505 26 460 16 23
16″ 400 565 26 515 16 27
20″ 500 670 28 620 20 27
24″ 600 780 28 725 20 30
PN-16
Nominal in Pipe Size in MM O.D. of Flanges Flange Thickness Dia of Bot Circle No. of Bolts Hole Diameter
1/2″ 15 95 14 65 4 14
3/4″ 20 105 16 75 4 14
1″ 21 115 16 85 4 14
1.1/4″ 31 140 16 100 4 18
1.1/2″ 40 150 16 110 4 18
2″ 50 165 18 125 4 18
2.1/2″ 65 185 18 145 4 18
3″ 80 200 20 160 8-Apr 18
4″ 100 220 20 180 8 18
5″ 125 250 22 210 8 18
6″ 150 285 22 240 8 23
8″ 200 340 24 295 8 23
10″ 250 405 26 355 12 27
12″ 300 460 28 410 12 27
14″ 350 520 30 470 16 27
16″ 400 580 32 525 16 30
20″ 500 715 34 650 20 33
PN-40
Nominal in Pipe Size in MM O.D. of Flanges Flange Thickness Dia of Bot Circle No. of Bolts Hole Diameter
1/2″ 15 95 16 65 4 14
3/4″ 20 105 18 75 4 14
1″ 25 115 18 85 4 14
1.1/4″ 32 140 18 100 4 18
1.1/2″ 40 150 18 110 4 18
2″ 50 165 20 125 4 18
2.1/2″ 65 185 22 145 8 18
3″ 80 200 24 160 8 18
4″ 100 235 24 190 8 23
5″ 125 270 26 220 8 27
6″ 150 300 38 250 8 27
8″ 200 375 34 320 12 30
10″ 250 415 38 385 12 33
12″ 300 550 42 450 16 33
14″ 350 580 46 510 16 36
16″ 400 660 50 585 16 39
20″ 500 755 52 670 20 42

DIN 2527 Blind Flange Dimensions & DIN 2527 PN10 Flange Dimensions

din 2527 blind flange dimensions - DIN Flanges

DIN 2527 flanges – These flanges are also known as weld neck flanges and are designed for use in high-pressure applications. They have a tapered hub and a long tapered neck, which allows them to be easily welded to the pipes. This type of flange is commonly used in piping systems that carry fluids under high pressure, such as water, steam, and oil.

PN6

PN10

DIN

No. of holes

D

b

k

d2

KG

D

b

k

d2

KG

10

4

75

12

50

11

0.38

90

14

60

14

0.63

15

4

80

12

55

11

0.44

95

14

65

14

0.71

20

4

90

14

65

11

0.66

105

16

75

14

1.01

25

4

100

14

75

11

0.82

115

16

85

14

1.23

32

4

120

14

90

14

1.18

140

16

100

18

1.81

40

4

130

14

100

14

1.39

150

16

110

18

2.09

50

4

140

14

110

14

1.62

165

18

125

18

2.88

65

4

160

14

130

14

2.14

185

18

145

18

3.65

80

4

190

16

150

48

3.43

200

20

160

18

4.61

100

4

210

16

170

18

4.22

220

20

180

18

5.65

125

8

240

18

200

18

6.1

250

22

210

18

8.13

150

8

265

18

225

18

7.51

285

22

240

22

10.49

175

8

295

20

255

18

10.41

315

24

270

22

14.11

200

8

320

20

280

18

12.31

340

24

295

22

16.53

250

12

375

22

335

18

18.55

395

26

350

22

24.08

300

12

440

22

395

22

25.47

445

26

400

22

30.81

350

12

490

22

445

22

31.78

505

26

460

22

39.64

400

16

540

22

495

22

38.5

565

26

515

26

49.44

500

20

645

24

600

22

60.13

670

28

620

26

75.16

600

20

755

28

705

26

96.07

780

30

725

30

109.2

700

24

860

30

810

26

133.8

895

32

840

30

153.77

800

24

975

32

920

30

183.29

1015

36

950

33

222.86

900

24

1075

36

1020

30

251.7

1115

40

1050

33

299.08

1000

28

1175

42

1120

30

350.98

1230

46

1160

36

418.78

DIN 2527 PN16 Blind Flange Dimensions & DIN 2527 PN25 Blind Flange Dimensions

PN16 PN25
DIN No. of holes D b k d2 KG D b k d2 KG
10 4 90 14 60 14 0.63 90 16 60 14 0.72
15 4 95 14 65 14 0.71 95 16 65 14 0.81
20 4 105 16 75 14 1.01 105 18 75 14 1.14
25 4 115 16 85 14 1.23 115 18 85 14 1.38
32 4 140 16 100 18 1.81 140 18 100 18 2.03
40 4 150 16 110 18 2.09 150 18 110 18 2.35
50 4 165 18 125 18 2.88 165 20 125 18 3.2
65 4 185 18 145 18 3.65 185 22 145 18 4.29
80 8 200 20 160 18 4.61 200 24 160 18 5.54
100 8 220 20 180 18 5.65 235 24 190 22 7.6
125 8 250 22 210 18 8.13 270 26 220 26 10.82
150 8 285 22 240 22 10.49 300 28 250 26 14.6
175 8 315 24 270 22 14.11 330 28 280 26 17.4
200 12 340 24 295 22 16.26 360 30 310 26 22.47
250 12 405 26 355 26 24.99 425 32 370 30 33.51
300 12 460 28 410 26 35.13 485 34 430 30 46.29
350 16 520 30 470 26 48.01 555 38 490 33 68.08
400 16 580 32 525 30 83.53 620 40 550 36 89.59
500 20 715 36 650 33 108.63 730 45 660 36 140.66
600 20 780 38 770 36 136.47 845 48 770 39 202.3
700 24 895 40 840 36 189.87 960 50 875 42 271.05
800 24 1015 44 950 39 269.57 1085 54 990 48 373.52
900 28 1115 48 1050 39 355.31 1185 58 1090 48 479.07
1000 28 1230 52 1170 42 469.2 1320 62 1210 56 632.47

DIN 2527 PN40 Blind Flange Dimensions & DIN 2527 PN64 Blind Flange Dimensions

PN40 PN64
DIN No. of holes D b k d2 KG D b k d2 KG
10 4 90 16 60 14 0.72 20 70 40 2 14
15 4 95 16 65 14 0.81 20 75 45 2 14
20 4 105 18 75 14 1.14 24 100 68 2 18
25 4 115 18 85 14 1.38 24 110 78 2 22
32 4 140 18 100 18 2.03 26 125 88 3 22
40 4 150 18 110 18 2.35 26 135 102 3 22
50 4 165 20 125 18 3.2 26 160 122 3 22
65 8 185 22 145 18 4.29 28 170 138 3 22
80 8 200 24 160 18 5.54 30 200 162 3 26
100 8 235 24 190 22 7.6 34 240 188 3 30
125 8 270 26 220 26 10.82 36 280 218 3 33
150 8 300 28 250 26 14.6 40 310 260 3 33
175 12 350 32 295 30 22.04 42 345 285 3 36
200 12 375 34 320 30 27.21 46 400 345 3 38
250 12 450 38 385 33 44.38 52 460 410 4 36
300 16 515 42 450 33 64.17 56 525 465 4 39
350 16 580 46 510 36 89.52 60 585 535 4 42
400 16 660 50 585 39 126.76
500 20 755 56 670 42 184.63
600 20 890 62 795 48 285.17
700 24 995 64 900 48 368.83
800 24 1140 70 1030 56 528.39
900 28 1250 76 1140 56 690.99
1000 28 1360 84 1250 56 912.42

DIN 2527 PN100 Blind Flange Dimensions

PN100
DN D b k D4 F No. of holes d2 KG
10 100 20 70 40 2 4 14 1.04
15 105 20 75 45 2 4 14 1.16
25 140 24 100 68 2 4 18 2.54
32 155 24 110 78 2 4 22 3.07
40 170 26 125 88 3 4 22 3.97
50 195 28 145 102 3 4 26 5.64
65 220 30 170 122 3 8 26 7.43
80 230 32 180 138 3 8 26 8.84
100 265 36 210 162 3 8 30 13.31
125 315 40 250 188 3 8 33 21.3
150 355 44 290 218 3 12 33 29.43
175 385 48 320 260 3 12 33 38.75
200 430 52 360 285 3 12 36 52.66
250 505 60 430 345 3 12 39 85.41
300 585 68 500 410 4 16 42 128.05
350 655 74 560 465 4 16 48 174.53
DN ISO DIN d4 D t f Kψ No. of Holes d2 KG
10 17.2 14 40 90 2 60 4 14 0.63
15 21.3 20 45 95 14 2 65 4 14 0.72
20 26.9 25 58 105 16 2 75 4 14 1.01
25 33.7 30 68 115 16 2 85 4 14 1.23
32 42.4 38 78 140 16 2 100 4 18 1.80
40 48.3 44.5 88 150 16 3 110 4 18 2.09
50 60.3 57 102 165 18 3 125 4 18 2.88
65 76.1 122 185 18 3 145 4 18 3.66
80 88.9 138 200 20 3 160 8 18 4.77
100 114.3 108 158 220 20 3 180 8 18 5.65
125 139.7 133 188 250 22 3 210 8 18 8.42
150 168.3 159 212 285 22 3 240 8 23 10.40
200 219.1 216 268 340 24 3 295 12 23 16.10
250 273 267 320 405 26 3 355 12 27 24.90
300 323.9 318 378 460 28 4 410 12 27 35.10
350 355.6 368 438 520 30 4 470 16 27 47.80
400 406.4 419 490 580 32 4 525 16 30 63.50
500 508 521 610 715 36 4 650 20 33 102.00
600 609.6 622 725 840 40 5 770 20 36
700 711.2 720 795 910 5 840 24 36
800 812.8 820 900 1025 5 950 24 39
900 914.4 920 1000 1125 5 1050 28 39
1000 1016 1020 1115 1255 5 1170 28 42

DIN 2544 Flange Dimensions (Flat Flange For Welding (Slip On) PN25)

DN ISO DIN d4 D t f Kψ No. of Holes d2 KG
10 17.2 14 40 90 2 60 4 14 0.72
15 21.3 20 45 95 16 2 65 4 14 0.81
20 26.9 25 58 105 18 2 75 4 14 1.24
25 33.7 30 68 115 18 2 85 4 14 1.38
32 42.4 38 78 140 18 2 100 4 18 2.03
40 48.3 44.5 88 150 18 3 110 4 18 2.35
50 60.3 57 102 165 20 3 125 4 18 3.20
65 76.1 122 185 22 3 145 4 18 4.29
80 88.9 138 200 24 3 160 8 18 5.88
100 114.3 108 162 235 24 3 190 8 23 7.54
125 139.7 133 188 270 26 3 220 8 27 10.80
150 168.3 159 218 300 28 3 250 8 27 14.50
200 219.1 216 278 360 30 3 310 12 27 22.30
250 273 267 335 425 32 3 370 12 30 33.50
300 323.9 318 395 485 34 4 430 16 30 46.30
350 355.6 368 450 555 38 4 490 16 33 68.00
400 406.4 419 505 620 40 4 550 16 36 89.70
500 508 521 615 730 44 4 660 20 36 138.00
600 609.6 622 720 845 5 770 20 39
700 711.2 720 820 960 5 870 24 42
800 812.8 820 930 1085 5 990 24 48
900 914.4 920 1030 1185 5 1090 28 48
1000 1016 1020 1140 1320 5 1210 28 56

DIN 2543 Flange Dimenisons

din 2545 flange dimensions - DIN Flanges

The DIN 2543 slip-on flange is another popular type of DIN flange. This flange is similar to the welding neck flange, but it has a shorter neck and is not suitable for welding. Instead, it is designed to be slipped over the end of a pipe and then secured with bolts. This makes it a quick and easy way to connect pipes, but it is not as strong as a welding neck flange and is not suitable for high-pressure applications.

DN ISO DIN d4 D t f Kψ No. of Holes d2 KG
10 17.2 14 40 90 2 60 4 14 0.63
15 21.3 20 45 95 14 2 65 4 14 0.72
20 26.9 25 58 105 16 2 75 4 14 1.01
25 33.7 30 68 115 16 2 85 4 14 1.23
32 42.4 38 78 140 16 2 100 4 18 1.80
40 48.3 44.5 88 150 16 3 110 4 18 2.09
50 60.3 57 102 165 18 3 125 4 18 2.88
65 76.1 122 185 18 3 145 4 18 3.66
80 88.9 138 200 20 3 160 8 18 4.77
100 114.3 108 158 220 20 3 180 8 18 5.65
125 139.7 133 188 250 22 3 210 8 18 8.42
150 168.3 159 212 285 22 3 240 8 23 10.40
200 219.1 216 268 340 24 3 295 12 23 16.10
250 273 267 320 405 26 3 355 12 27 24.90
300 323.9 318 378 460 28 4 410 12 27 35.10
350 355.6 368 438 520 30 4 470 16 27 47.80
400 406.4 419 490 580 32 4 525 16 30 63.50
500 508 521 610 715 36 4 650 20 33 102.00
600 609.6 622 725 840 40 5 770 20 36
700 711.2 720 795 910 5 840 24 36
800 812.8 820 900 1025 5 950 24 39
900 914.4 920 1000 1125 5 1050 28 39
1000 1016 1020 1115 1255 5 1170 28 42

DIN 2544 Flange Dimensions (Flat Flange For Welding (Slip On) PN25)

DN ISO DIN d4 D t f Kψ No. of Holes d2 KG
10 17.2 14 40 90 2 60 4 14 0.72
15 21.3 20 45 95 16 2 65 4 14 0.81
20 26.9 25 58 105 18 2 75 4 14 1.24
25 33.7 30 68 115 18 2 85 4 14 1.38
32 42.4 38 78 140 18 2 100 4 18 2.03
40 48.3 44.5 88 150 18 3 110 4 18 2.35
50 60.3 57 102 165 20 3 125 4 18 3.20
65 76.1 122 185 22 3 145 4 18 4.29
80 88.9 138 200 24 3 160 8 18 5.88
100 114.3 108 162 235 24 3 190 8 23 7.54
125 139.7 133 188 270 26 3 220 8 27 10.80
150 168.3 159 218 300 28 3 250 8 27 14.50
200 219.1 216 278 360 30 3 310 12 27 22.30
250 273 267 335 425 32 3 370 12 30 33.50
300 323.9 318 395 485 34 4 430 16 30 46.30
350 355.6 368 450 555 38 4 490 16 33 68.00
400 406.4 419 505 620 40 4 550 16 36 89.70
500 508 521 615 730 44 4 660 20 36 138.00
600 609.6 622 720 845 5 770 20 39
700 711.2 720 820 960 5 870 24 42
800 812.8 820 930 1085 5 990 24 48
900 914.4 920 1030 1185 5 1090 28 48
1000 1016 1020 1140 1320 5 1210 28 56

DIN 2558 Flange Dimensions

din 2561 flange dimensions - DIN Flanges

DN d1 Thread DIN 2999 A B b Øk R r Thread d2 KG
6 10.2 R 1/8 64 32 12 40 16 10 M10 11 0.119
8 13.5 R 1/4 72 36 12 45 18 11 M10 11 0.147
10 17.2 R 3/8 75 40 12 50 20 12 M10 11 0.165
15 21.3 R 1/2 80 45 12 55 22,5 13 M10 11 0.194
20 26.9 R 3/4 90 64 14 65 32 18 M10 11 0.373
25 33.7 R 1 100 72 14 75 36 20 M10 11 0.455
32 42.4 R 1-1/4 118 85 16 95 42.5 22 M12 14 0.675
40 48.3 R 1-1/2 132 95 16 100 47.5 25 M12 14 0.850
50 60.3 R 2 140 100 16 110 50 28 M12 14 0.882
65 76.1 R 2-1/2 160 118 16 130 59 32 M12 14 1.100
80 88.9 R 3 190 140 18 150 70 38 M16 18 1.760
100 114.3 R 4 210 160 18 170 80 42 M16 18 1.890

DIN 2561 Flange Dimensions

DN d1 Thread DIN 2999 A B b k R r h1 d3 d4 f Thread d2 KG
6 10.2 R 1/8 75 40 12 50 20 12 18 20 32 2 M10 11 0.172
8 13.5 R 1/4 80 45 12 55 22,5 13 18 25 38 2 M10 11 0.21
10 17.2 R 3/8 90 50 14 60 25 15 20 30 40 2 M12 14 0.295
15 21.3 R 1/2 100 56 14 65 28 16 20 35 45 2 M12 14 0.365
20 26.9 R 3/4 105 75 16 75 37,5 21 24 45 58 2 M12 14 0.622
25 33.7 R 1 118 85 16 85 42,5 22 24 52 68 2 M12 14 0.777
32 42.4 R 1-1/4 140 100 16 100 50 28 26 60 78 2 M16 18 1.07
40 48.3 R 1-1/2 150 112 16 110 56 30 26 70 88 3 M16 18 1.26

DIN 2565 Threaded Flange with Weld Neck PN6 Dimensions

din 2565 threaded flange with weld neck pn6 dimensions - DIN Flanges

The DIN 2565 threaded flange is another type of DIN flange that is used for low-pressure applications. This flange has threads on the inside of the flange, which allows it to be screwed onto the end of a pipe. It is a cost-effective option for connecting pipes, but it is not suitable for high-pressure applications because the threads can easily be damaged.

DN D1 DIN 2999 D b k h d3 d4 f No. of holes d2 KG
6 10.2 R1/8 65 10 40 18 18 25 2 4 11.5 0.19
8 13.5 R1/4 70 10 45 18 22 30 2 4 11.5 0.23
10 17.2 R3/8 75 12 50 20 25 35 2 4 11.5 0.32
15 21.3 R1/2 80 12 55 20 30 40 2 4 11.5 0.37
20 26.9 R3/4 90 14 65 24 40 50 2 4 11.5 0.58
25 33.7 R1 100 14 75 24 50 60 2 4 11.5 0.73
32 42.4 R1.1/4 120 14 90 26 60 70 2 4 14 1.05
40 48.3 R1.1/2 130 14 100 26 70 80 3 4 14 1.2
50 50.3 R2 140 14 110 28 80 90 3 4 14 1.54
65 76.1 R2.1/2 160 14 130 32 100 110 3 4 14 1.87
80 88.9 R3 190 16 150 34 110 128 3 4 18 2.78
100 114.3 R4 210 16 170 38 130 148 3 4 18 3.07
150 139.7 R5 240 18 200 40 160 178 3 8 18 4.33
200 168.3 R6 285 18 225 44 185 202 3 8 18 4.81

DIN 2566 Threaded Flange with Neck PN16 Dimensions

din 2566 flange dimensions - DIN Flanges

DIN 2566 flanges – These flanges are also known as threaded flanges and are designed for use in low-pressure applications. They have a flat face and a circular opening, but they also have a thread.

DN D1 DIN 2999 D b k h d3 d4 f No. of holes d2 KG
6 10.2 R1/8 75 12 50 18 20 32 2 4 11 0.33
8 13.5 R1/4 80 12 55 18 25 38 2 4 11 0.39
10 17.2 R3/8 90 14 60 20 30 40 2 4 14 0.56
15 21.3 R1/2 95 14 65 20 35 45 2 4 14 0.62
20 26.9 R3/4 105 16 75 24 45 58 2 4 14 0.92
25 33.7 R1 115 16 85 24 52 68 2 4 14 1.1
32 42.4 R1.1/4 140 16 100 26 60 78 2 4 18 1.59
40 48.3 R1.1/2 150 16 110 26 70 88 3 4 18 1.77
50 60.3 R2 165 18 125 28 85 102 3 4 18 2.41
65 76.1 R2.1/2 185 18 145 32 105 122 3 4 18 3.13
80 88.9 R3 200 20 160 34 118 138 3 4 18 3.95
100 114.3 R4 220 20 180 38 140 158 3 8 18 4.38
125 139.7 R3 250 22 210 40 168 188 3 8 18 5.99
150 168.3 R4 285 22 240 44 196 212 3 8 22 7.42

DIN 2567 Threaded Flange With Neck PN25 and PN40 Dimensions

din 2567 flange dimensions - DIN Flanges

DN D1 Thread DIN 2999 D b k h1 d3 d4 f No. of holes Threa d d2 KG
6 10.2 R1/8 75 14 50 20 20 32 2 4 M10 11 0.388
8 13.5 R1/4 80 14 55 20 25 38 2 4 M10 11 0.450
10 17.2 R3/8 90 16 60 22 30 40 2 4 M12 14 0.630
15 21.3 R1/2 95 16 65 22 35 45 2 4 M12 14 0.710
20 26.9 R3/4 105 18 75 26 45 58 2 4 M12 14 1.030
25 33.7 R1 115 18 85 28 52 68 2 4 M12 14 1.280
32 42.4 R1.1/4 140 18 100 30 60 78 2 4 M16 18 1.870
40 48.3 R1.1/2 150 18 110 32 70 88 3 4 M16 18 2.140
50 60.3 R2 165 20 125 34 85 102 3 4 M16 18 2.850
65 76.1 R2.1/2 185 22 145 38 105 122 3 8 M16 18 3.850
80 88.9 R3 200 24 160 40 118 138 3 8 M16 18 4.800
100 114.3 R4 235 24 190 44 145 162 3 8 M20 22 6.430
125 139.7 R5 270 26 220 48 170 188 3 8 M24 26 8.770
150 165.1 R6 300 28 250 52 200 218 3 8 M24 26 10.500

DIN 2653 Flange Dimensions

din 2653 flange dimensions - DIN Flanges

DN d1 D d6 b k e No. of holes Thread d2 d4 d5 h3 KG Flange KG Ring
ISO DIN
10 14 90 16 14 60 5 4 M12 14 40 14.5 10 0.599 0.087
17.2 90 19 14 60 5 4 M12 14 40 17.7 10 0.599 0.087
15 20 95 22 14 65 5 4 M12 14 45 21 10 0.689 0.105
21.3 95 24 14 65 5 4 M12 14 45 22 10 0.689 0.105
20 25 105 28 14 75 5 4 M12 14 58 26 12 0.806 0.203
26.9 105 30 14 75 5 4 M12 14 58 27.6 12 0.806 0.203
25 30 115 33 16 85 6 4 M12 14 68 31 12 0.110 0.276
33.7 115 36 16 85 6 4 M12 14 68 34.4 12 0.110 0.276
32 38 140 42 16 100 6 4 M16 18 78 39 12 1.640 0.343
42.4 140 46 16 100 6 4 M16 18 78 43.1 12 1.640 0.343
40 44.5 150 50 16 110 6 4 M16 18 88 45.5 12 1.860 0.426
48.3 150 54 16 110 6 4 M16 18 88 49 12 1.860 0.426
50 57 165 62 16 125 6 4 M16 18 102 58.1 14 2.200 0.618
60.3 165 65 16 125 6 4 M16 18 102 61.1 14 2.200 0.618
65 76.1 185 81 16 145 6 4 M16 18 122 77.1 14 2.620 0.786
80 88.9 200 94 18 160 6 4 M16 18 138 90.3 16 3.320 1.100
100 108 220 113 18 180 6 4 M16 18 158 109.6 16 3.670 1.310
114.3 220 119 18 180 6 4 M16 18 158 115.9 16 3.670 1.310
125 133 250 138 18 210 6 8 M16 18 188 134.8 18 4.540 1.960
139.7 250 145 18 210 6 8 M16 18 188 141.6 18 4.540 1.960
150 159 285 164 18 240 6 8 M20 22 212 161.1 18 5.600 2.180
168.3 285 173 18 240 6 8 M20 22 212 170.5 18 5.600 2.180
200 219.1 340 225 20 295 8 8 M20 22 268 221.8 20 7.460 3.100
250 267 395 273 22 350 8 8 M20 22 320 270.2 22 10.30 4.220
273 395 279 22 350 8 12 M20 22 320 276.2 22 10.30 4.220
300 323.9 445 329 26 400 8 12 M20 22 370 327.6 22 14.00 4.850
350 355.6 505 362 28 460 8 12 M20 22 430 359.7 22 18.50 6.710
368 505 374 28 460 8 12 M20 22 430 372.2 22 18.50 6.710
400 406.4 565 413 32 515 8 16 M24 26 482 411 24 25.00 8.280
419 565 426 32 515 8 16 M24 26 482 423.7 24 25.00 8.280
(450) 457 615 467 38 565 8 16 M24 26 532 462.5 24 30.60 9.300
500 508 670 517 38 620 8 20 M24 26 585 513.6 26 37.00 11.50

DIN 2656 Flange Dimensions

din 2642 flange dimensions - DIN Flanges

DN d1 D d6 b k e No. of holes d2 KG
ISO DIN
10 14 90 16 16 60 5 4 14 0.7
17.2 90 19 16 60 5 4 14 0.69
15 20 95 22 16 65 5 4 14 0.77
21.3 95 24 16 65 5 4 14 0.76
20 25 105 28 16 75 5 4 14 0.93
26.9 105 30 16 75 5 4 14 0.92
25 30 115 33 18 85 6 4 14 1.26
33.7 115 36 18 85 6 4 14 1.24
32 38 140 42 18 100 6 4 18 1.84
42.4 140 46 18 100 6 4 18 1.8
40 44.5 150 50 18 110 6 4 18 2.08
48.3 150 54 18 110 6 4 18 2.03
50 57 165 62 20 125 6 4 18 2.72
60.3 165 65 20 125 6 4 18 2.68
65 76.1 165 81 20 145 6 8 18 3.09
80 88.9 200 94 22 160 6 8 18 3.88
100 108 235 113 22 190 6 8 22 5.23
114.3 235 119 22 190 6 8 22 5.04
125 133 270 138 24 220 6 8 26 7.17
139.7 270 145 24 220 6 8 26 6.88
150 159 300 164 24 250 6 8 26 8.54
168.3 300 173 24 250 6 8 26 8.09
200 219.1 375 225 30 320 8 12 30 14.65
250 267 450 273 36 385 8 12 33 25.5
273 450 279 36 385 8 12 33 24.77
300 323.9 515 329 40 450 8 16 33 34.42
350 355.8 580 362 46 510 8 16 36 52.36
363 580 374 46 510 8 16 36 49.85
400 406.4 660 413 50 585 8 16 39 74.2
419 660 426 50 585 8 16 39 70.84

DIN 2501 PN10 Flange Dimenisons

din 2501 flange dimensions - DIN Flanges

Nominal Pipe Size Diameter of Flange Dia Flange I.D Thk of Flanges Dia of Bolt Cirlce No. of Dia of Bolt Holes Weight
PLATE BLIND
DN Pipe D D5 B K holes D2 KG KG
15 21.30 95 22.00 14 65 4 14 0.67 0.71
20 26.90 105 27.60 16 75 4 14 0.93 1.01
25 33.70 115 34.40 16 85 4 14 1.11 1.23
32 42.40 140 43.10 16 100 4 18 1.62 1.81
40 48.30 150 49.00 16 110 4 18 1.85 2.09
50 60.30 165 61.10 18 125 4 18 2.46 2.88
65 76.10 185 77.10 18 145 4 18 2.99 3.65
80 88.90 200 90.30 20 160 8 18 3.61 4.61
100 114.30 220 115.90 20 180 8 18 3.99 5.65
125 139.70 250 141.60 22 210 8 18 5.41 8.13
150 168.30 285 170.50 22 240 8 22 6.55 10.44
175 193.70 315 196.10 24 270 8 22 8.42
200 219.10 340 221.80 24 295 12 22 8.97 16.48
250 273.00 405 276.20 26 355 12 26 12.76 23.99
300 323.90 460 327.60 28 410 12 26 16.60 30.73
350 355.60 520 359.70 30 470 16 26 24.08 42.56
400 406.40 580 411.00 32 525 16 30 30.20 60.68
450 457.00 640 462.30 38 585 20 30 41.67 71.74
500 508.00 715 513.60 38 650 20 33 52.87 96.4
600 610.00 840 616.50 42 770 20 36 77.58 145.6
700 711.00 910 716.00 44 840 24 36 77.13
800 813.00 1025 818.00 50 950 24 39 106.35
900 914.00 1125 920.00 54 1050 28 39 125.39
1000 1016.00 1255 1022.00 60 1170 28 42 177.99

DIN 2642 PN10 Flange Dimensions

din 2642 flange dimensions 1 - DIN Flanges

DN d1 D d6 b k e No. of holes d2 KG
ISO DIN
10 14 90 16 14 60 3 4 14 0.61
17.2 90 19 14 60 3 4 14 0.60
15 20 95 22 14 65 3 4 14 0.67
21.3 95 24 14 65 3 4 14 0.66
20 25 105 28 14 75 3 4 14 0.82
26.9 105 30 14 75 3 4 14 0.81
25 30 115 33 16 85 4 4 14 1.12
33.7 115 36 16 85 4 4 14 1.10
32 38 140 42 16 100 4 4 18 1.63
42.4 140 46 16 100 4 4 18 1.60
40 44.5 150 50 16 110 4 4 18 1.85
48.3 150 54 16 110 4 4 18 1.80
50 57 165 62 16 125 5 4 18 2.18
60.3 165 65 16 125 5 4 18 2.14
65 76.1 185 81 16 145 5 4 18 2.60
80 88.9 200 94 18 160 5 8 18 3.17
100 108 220 113 18 180 5 8 18 3.67
114.3 220 119 18 180 5 8 18 3.51
125 133 250 138 18 210 5 8 18 4.53
139.7 250 145 18 210 5 8 18 4.32
150 159 285 164 18 240 5 8 22 5.60
168.3 285 173 18 240 5 8 22 5.26
200 219.1 340 225 20 295 5 8 22 7.53
250 267 395 273 22 350 5 12 22 10.27
273 395 279 22 350 5 12 22 9.82
300 323.9 445 329 26 400 5 12 22 13.46
350 355.6 505 362 28 460 6 16 22 20.07
368 505 374 28 460 6 16 22 18.54
400 406.4 565 413 32 515 6 16 26 27.19
419 565 426 32 515 6 16 26 25.04
500 508 670 517 38 620 6 20 26 39.38
600 610 780 618 44 725 7 20 30 56.55
700 711 R#8211; 895 721 50 840 7 24 30 80.02
800 813 1015 824 56 950 7 24 33 112.25
900 914 1115 926 62 1050 7 28 33 135.80
1000 1016 1230 1026 70 1160 7 28 36 182.96

DIN 2527 PN10 Flange Dimensions

Nominal Size Outside Diameter of Flange Diameter Bore Thickness of Flange No. of Holes Diameter of Holes Diameter of Bolts Diameter of Bolt Circle Weight
mm mm mm mm mm mm mm kg
10 90 14.5 14 4 14 60 0.61
10 90 17.7 14 4 14 60 0.6
15 95 21 14 4 14 65 0.67
15 95 22 14 4 14 65 0.67
20 105 26 16 4 14 75 0.94
20 105 27.6 16 4 14 75 0.94
25 115 31 16 4 14 85 1.13
25 115 34.4 16 4 14 85 1.11
32 140 39 16 4 18 100 1.66
32 140 43.1 16 4 18 100 1.62
40 150 45.5 16 4 18 110 1.89
40 150 49 16 4 18 110 1.85
50 165 58.1 18 4 18 125 2.5
50 165 61.1 18 4 18 125 2.46
65 185 77.1 18 4 18 145 2.99
80 200 90.3 20 8 18 160 3.61
100 220 109.6 20 8 18 180 4.17
100 220 115.9 20 8 18 180 3.99
125 250 134.8 22 8 18 210 5.66
125 250 141.6 22 8 18 210 5.41
150 285 161.1 22 8 22 240 6.97
150 285 170.5 22 8 22 240 6.55
175 315 196.1 24 8 22 270 8.42
200 340 221.8 24 8 22 295 9.28
250 395 270.2 26 12 22 350 12.36
250 395 276.2 26 12 22 350 11.85
300 445 327.6 26 12 22 400 13.61
350 505 359.7 28 16 22 460 20.35
350 505 372.2 28 16 22 460 18.77
400 565 411 32 18 26 515 27.52
400 565 423.7 32 18 26 515 35.43
450 615 462.3 38 20 26 565 35.11
500 670 513.6 38 20 26 620 40.2
600 780 615.5 40 20 26 725 51.87
DIN Plate Flanges (Slip On Flanges) DIN Weld Neck Flanges DIN Blind Flanges DIN Threaded Flanges
DIN 2573 PN6 Flanges

 

DIN 2576 PN10 Flanges

 

DIN 2502 PN16 Flanges

 

DIN 2503 PN25 Flanges

 

DIN 2543 PN16 Flanges

 

DIN 2631 PN6 Flanges

 

DIN 2632 PN10 Flanges

 

DIN 2633 PN16 Flanges

 

DIN 2634 PN25 Flanges

 

DIN 2635 PN40 Flanges

 

DIN 2527 PN6 Flanges

 

DIN 2527 PN10 Flanges

 

DIN 2527 PN16 Flanges

 

DIN 2527 PN25 Flanges

 

DIN 2527 PN40 Flanges

 

DIN 2565 PN6 Flanges

SS DIN Flange Pressure Rating

Flange Nominal Diameter Pressure Rating (PN)
**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

O.D. = outside diameter PCD = bolt circle diameter PN = nominal pressure in bars Note: (1 bar = 14.5 psi = 0.1 MPa = 100 KPa = 1.02 Kgf/cm²)

Check Din Flange Size Chart

din flange size chart - DIN Flanges  

Manufacturing process of DIN Flanges

DIN flanges can be produced by forging, casting, cutting or rolling. We mainly produce flanges by forging, cutting and rolling processes.

Manufacturing process of DIN forged flange

The forging process usually includes the following processes, i.e. selection of high quality billets, heating, forming and cooling.

20221213060528 74749 - DIN Flanges

  • Raw material inspection – The key raw material used to produce flanges is billet or hot rolled bar stock. All raw materials purchased are supplied with test reports in accordance with British Standards with full traceability. This is the first mandatory step in the flange production process to ensure good quality. The raw materials are retested in-house to ensure chemical composition, mechanical properties and metallographic analysis.
  • Cutting of raw materials – Correct and strict control of cutting sizes and proportions ensures full cost control.
  • Heating – This is a very important step for the quality of the flanges. It is necessary to keep detailed records of heating temperatures to avoid overheating. Overheating can damage the structure of the metal and the mechanical properties of the raw material.
  • Forging – The forging process is divided into free forging and die forging. The forging time and strength of flanges vary for different pressure classes.
  • Heat treatment-The purpose of heat treatment is to eliminate the stress inside the flange and make the density more uniform. Careful recording of heat treatment temperature and cooling time is the key.
  • Inspection of forging blanks – After the heat treatment process, select batch samples are tested again for chemical composition and mechanical properties to ensure that all items pass.
  • Machining of forging blanks – During machining, inspection is performed along with machining to ensure that each part of the flange is qualified. Machining is performed on CNC and/or lathes.
  • Finished Product Inspection – The finished product will be inspected 100% prior to delivery to ensure that the goods meet DIN, ASME, EN or customer standards.
  • Documented Documentation – The entire production process and quality checks at different levels are documented according to ISO compliant standard operating procedures. This is the guarantee of good quality.
  • Test certificates: As we are an ISO and PED certified manufacturer, we can issue test certificates for all goods upon delivery and inspection in accordance with British Standards.
  • Packaging: All forgings and flanges are packed in wooden boxes or crates or pallets to ensure safe movement of the goods.

Production process of DIN casting flange

The production process of a DIN casting flange typically involves several steps, including the creation of a mold or pattern, the casting of the flange using molten metal, and various finishing and quality control steps. To begin the process, a mold or pattern is created using a material such as wood or metal. This mold or pattern will be used to create the shape of the flange, and will typically be made to precise specifications to ensure that the final product meets the desired dimensions and specifications. Once the mold or pattern is ready, the casting process can begin. This typically involves melting the metal that will be used to create the flange, such as iron or steel, and pouring the molten metal into the mold or pattern. The metal is then allowed to cool and solidify, taking on the shape of the mold or pattern. After the casting process is complete, the flange will typically undergo various finishing and quality control steps. This may include machining or grinding to achieve the desired dimensions and surface finish, as well as testing to ensure that the flange meets the required specifications and standards. Overall, the production process for a DIN casting flange is a highly precise and technical process that requires a thorough understanding of metallurgy, casting techniques, and quality control processes.

Manufacturing process of DIN plate cutting flange

The process here is relatively simple, and the key raw material is hot rolled plate. The process is mainly used to produce lower thickness sliding plate flanges and blind flanges. All plates purchased are accompanied by a test certificate to German Standards. The circles are cut from the plates. No heat treatment is involved in the flange manufacturing process. Drilling and machining is carried out on the circles to obtain the required dimensions. The goods are visually inspected and marked in accordance with the relevant standards.

Marking of DIN Flanges

DIN flanges are typically marked with a number that indicates the flange size, pressure rating, and material. The number is typically stamped or engraved on the flange itself. For example, a DIN flange marked with the number “PN 10” indicates that it is a flange with a pressure rating of 10 bar and is made of stainless steel. In addition to the flange number, DIN flanges may also be marked with other information, such as the manufacturer’s name or logo, the date of manufacture, and the pressure and temperature ratings. This information can be useful for identifying and verifying the flange, as well as for ensuring that it is suitable for the intended application.

Packing of DIN Flanges

To properly pack DIN flanges for shipping or storage, it is important to ensure that they are protected from damage. This can be done by using appropriate packaging materials, such as bubble wrap, foam, or other protective material, to cushion the flanges and prevent them from being damaged during transport. The flanges should also be properly secured in the packaging to prevent them from shifting or moving around. It may also be necessary to label the packaging with the appropriate information, such as the type and size of the flange, to ensure that they can be easily identified and handled properly.

Inspection and measurement of DIN Flanges

To inspect and measure these flanges, proper tools and equipment are required. A common method of measuring DIN flanges is to use calipers or micrometers to measure the external and internal dimensions of the flange, including the diameter of the bolt holes and the total thickness of the flange. You can also use a thread gauge to check the threads on the bolt holes to make sure they are the correct size and pitch. In addition to these measurements, the flange must be inspected for any visible defects such as cracks, chips or other damage. This can be done either by visual inspection or by using non-destructive testing methods such as radiography or ultrasonic testing. Overall, the inspection and measurement of DIN flanges is an important step in ensuring that these components are of high quality and suitable for a variety of applications.

Application of DIN Flanges

German standard flanges are known to deliver exceptional performance and are generally developed for meeting the demands. We oer a broad range of DIN Flanges through a worldwide network of stock-keeping branches. These british dtandard flange is use in various industries like:

  • Stainless Steel German Standard Flange uses in Oil and Gas Pipeline;
  • German Standard Flange uses in Chemical Industry;
  • Alloy Steel German Standard Flange uses in Plumbing;
  • German Standard Flange uses in Heating;
  • German Standard Pipe Flange uses in Water Supply Systems;
  • German Standard Flange uses in Power Plant;
  • German Standard Flange uses in Paper & Pulp Industry;
  • German Standard Flange uses in General Purpose Applications;
  • Steel German Standard Flange uses in Fabrication Industry;
  • German Standard Flange uses in Food Processing Industry;
  • German Standard Flange uses in Structural Pipe.

How to purchase the correct DIN flanges?

When purchasing DIN flanges, it is important to make sure that you are purchasing the right size and type of flange for your application. Here are some steps you can follow to ensure you get the right DIN flange. Determine the size and type of flange you need. DIN flanges come in a variety of sizes and types, so you need to know the specific size and type required for your application. Measure the pipe or other fitting to which the flange will be connected and make sure the flange you purchase is the right size for the pipe or fitting. The pressure rating of the flange, based on the pressure of the fluid or gas flowing through the pipe. Choose the right type of flange for your application. there are different types of DIN flanges, such as threaded flanges, welded flanges or slip-on flanges, each with its own specific application. Consider the material of the flange. din flanges can be made of different materials such as carbon steel, stainless steel or other alloys. Consider factors such as strength, corrosion resistance and cost, and choose the material that best suits your application. Check the specifications of the flange to ensure it meets your requirements. din flanges have specific technical specifications, such as pressure ratings and temperature ratings, that you need to consider before purchasing. Make sure you buy from a reputable supplier. the quality of DIN flanges can vary, so it is important to buy flanges from a supplier with a good reputation. By following these steps, you can ensure that you are purchasing the correct DIN flange for your application.

How to select DIN flanges manufacturer?

Choosing a DIN flange manufacturer can be a tricky task, as there are many different manufacturers on the market, all with their own strengths and weaknesses. There are several key factors to consider when choosing a DIN flange manufacturer.DIN flanges are an important part of many industrial and manufacturing processes, so it is vital that you choose a manufacturer that can provide a quality product that meets your specific needs. The following are some tips to help you choose the right DIN flange manufacturer. Consider a manufacturer with guaranteed quality DIN flanges: The quality of DIN flanges is essential to ensure that they perform as expected and will last for a long time. Look for a manufacturer that has a proven track record of producing high quality DIN flanges. This can be determined by looking at customer reviews and checking industry certifications such as ISO 9001. Consider the manufacturer’s reputation: The first thing to consider when choosing a DIN flange manufacturer is its reputation in the industry. Look for a manufacturer that has a proven track record of producing high-quality products and delivering them on time. You can seek advice from other industry professionals or check online reviews to see what other customers think of the manufacturer. Consider the manufacturer’s experience: Experience is another important factor to consider when choosing a DIN flange manufacturer. A manufacturer with a long history in the industry may have a better understanding of the unique challenges and requirements of DIN flanges and be able to provide the expertise and support needed to ensure a successful project. Consider the manufacturer’s capabilities: It is important to select a manufacturer that is capable of producing the specific type of DIN flange required. This means looking at the types of flanges the manufacturer offers, as well as the materials and finishes they are available in. Make sure the manufacturer is capable of producing flanges in the size and quantity you require, and that they have the necessary certifications and approvals to ensure the quality of their products. Consider the manufacturer’s customer service: The quality of customer service offered by DIN flange manufacturers is also an important factor to consider. Look for a manufacturer that is responsive, easy to work with, and provides the support and guidance you need throughout the process. A manufacturer with a dedicated customer service team may be a valuable resource when it comes to answering any questions or concerns you may have about the flange you are ordering. Consider the manufacturer’s pricing: Of course, price is also an important factor to consider when choosing a DIN flange manufacturer. It is important to balance the need for a quality product with the need to stay within your budget. Look for a manufacturer that offers competitive pricing without sacrificing quality. Get quotes from multiple manufacturers to compare prices and ensure you get the best price. Consider the manufacturer’s location: Consider the manufacturer’s location as it relates to your business. If you need DIN flanges installed quickly, it is best to choose a local manufacturer. However, if you are willing to wait for delivery, a manufacturer located in a different region or country may offer a better price or higher quality product. Consider a manufacturer’s custom service: Some manufacturers offer the ability to customize DIN flanges to meet your specific needs. If you need specific dimensions or features, choose a manufacturer that can meet your requirements. In short, choosing a DIN flange manufacturer is an important decision that will have a significant impact on the performance and reliability of your equipment. By conducting thorough research and considering a manufacturer’s track record, customer service, technical capabilities, pricing and delivery options, you can make an informed decision and select a manufacturer that will provide the best value and quality for your investment.

Export Country For DIN Flanges

MIDDLE EAST AFRICA NORTH AMERICA EUROPE ASIA SOUTH AMERICA
Saudi Arabia Nigeria Usa Russia India Argentina
Iran Algeria Canada Norway Singapore Bolivia
Iraq Angola Mexico Germany Malaysia Brazil
Uae South Africa Panama France Indonesia Chile
Qatar Libya Costa Rica Italy Thailand Venezuela
Bahrain Egypt Puerto Rica Uk Vietnam Colombia
Oman Sudan Trinidad And Tobago Spain South Korea Ecuador
Kuwait Equatorial Guinea Jamaica Ukraine Japan Guyana
Turkey The Republic Of Congo Bahamas Netherland Sri Lanka Paraguay
Yemen Gabon Denmark Belgium Maldives Uruguay
Syria Greece Bangladesh
Jordan Czech Republic Mayanmar
Cyprus Portugal Taiwan
Hungary Cambodia
Albania
Austria
Switzerland
Slovakia
Finland
Ireland
Croatia
Slovenia
Malta

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