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Home » News » Flange Standards » EN1092-1 Type 05 Blind Flange FF PN25

EN1092-1 Type 05 Blind Flange FF PN25

1.Technical drawing of EN1092-1 Type 05 Blind Flange Flat Face(FF) PN25

EN1092-1 Type 05 Blind Flange FF PN25

2. Dimensions of EN1092-1 Type 05 Blind Flange Flat Face(FF) PN25


Nominal 
Pipe Size
DN 

Outside 
Diameter
D

Bolt Circle 
Diameter

Diameter of 
Bolt Hole

Nos. Of 
Bolts
n

Flange 
Thickness 

15(21.3) 

95

65

14

4

16

20(26.9) 

105

75

14

4

18

25(33.7) 

115

85

14

4

18

32(42.4) 

140

100

18

4

18

40(48.3) 

150

110

18

4

18

50(60.3) 

165

125

18

4

20

65(76.1) 

185

145

18

8

22

80(88.9) 

200

160

18

8

24

100(114.3) 

235

190

22

8

24

125(139.7) 

270

220

26

8

26

150(168.3) 

300

250

26

8

28

200(219.1) 

375

310

26

12

30

250(273) 

425

370

30

12

32

300(323.9) 

485

430

30

16

34

350(355.6) 

555

490

33

16

38

400(406.4) 

620

550

36

16

40

450(457) 

670

600

36

20

50

500(508) 

730

660

36

20

51

3. Tolerance of dimensions


C4

<150±2
>150<500±3

M10 to M24±1
M27 to M45±1.5

≤18±1
>18≤50±1.5

4. Technical remarks


1. All dimensions are in mm unless otherwise specified.

2. Flat face finish: 3.2-12.5 Ra serrated spiral.

3. Stock materials available: S235JR, St37.2, C22.8, A105, SS304(L), SS316(L).


Jinan Aowei offers BL Flange in A105N, A105, ST37.2, C22.8, P245GH, ST37.2 High Yield & Carbon steel.

Email summer@jnaowei.com for all your flange buying needs.