PN16

FLANGE THICKNESS

DRILLING DATA

PN16

NOMINAL 
PIPE SIZE

FLANGE
OUTSIDE
DIAMETER

THICKNESS
OF 
FLANGE

PITCH
CIRCLE
DIAMETER

BOLT
HOLE
DIAMETER

NUMBER
OF
BOLT
HOLES

NOMINAL 
PIPE SIZE

MM

INCH

OD

T

PCD

H

#

MM

INCH

50

2

150

11

114

18

4

50

2

65

2  1/2

165

11

127

18

4

65

2  1/2

80

3

185

11

146

18

4

80

3

100

4

215

13

178

18

4

100

4

150

6

280

13

235

18

8

150

6

200

8

335

19

292

18

8

200

8

225

9

370

19

324

18

8

225

9

250

10

405

19

356

22

8

250

10

300

12

455

23

406

22

12

300

12

350

14

525

30

470

26

12

350

14

375

15

550

30

495

26

12

375

15

400

16

580

30

521

26

12

400

16

450

18

640

30

584

26

12

450

18

500

20

705

38

641

26

16

500

20

600

24

825

48

756

30

16

600

24

700

28

910

56

845

30

20

700

28

750

30

995

56

927

33

20

750

30

800

32

1060

56

984

36

20

800

32

900

36

1175

66

1092

36

24

900

36

1000

40

1255

66

1175

36

24

1000

40

1200

48

1490

76

1410

36

32

1200

48

Notes:

(1)Flat face and Raised face or "O" ring groove also available.

(2) For special design, pls make an enquiry here.