透明黄漆法兰，涂黄漆法兰，出口法兰油漆，透明黄法兰漆

ANSI B16.5 Butt welding neck flange Class300 (PN50)

NPS

DN

 pipe OD

 flange OD

 hole center to hole center

 diam.of holes

 NO. of holes

 thickness

 ID of flange

diam. Of neck

 height of flange

1/2"

15

21.3

95

66.7

16

4

12.7

15.5

38

51

3/4"

20

26.9

115

82.6

18

4

14.3

21

48

56

1"

25

33.7

125

88.9

18

4

15.9

27

54

60

1 1/4"

32

42.4

135

98.4

18

4

17.5

35

64

64

1 1/2"

40

48.3

155

114.3

22

4

19.1

41

70

67

2"

50

60.3

165

127

18

8

20.7

52

84

68

2 1/2"

65

76.1

190

149.2

22

8

23.9

66

100

75

3"

80

88.9

210

168.3

22

8

27

77.5

117

78

4"

100

114.3

255

200

22

8

30.2

101.5

146

84

5"

125

139.7

280

235

22

8

33.4

127

178

97

6"

150

168.3

320

269.9

22

12

35

154

206

97

8"

200

219.1

380

330.2

26

12

39.7

203

260

110

10"

250

273

445

387.4

30

16

46.1

255

321

116

12"

300

323.9

520

450.8

33

16

49.3

303.5

375

129

14"

350

355.6

585

514.4

33

20

52.4

as per customers require

425

141

16"

400

406.4

650

571.5

36

20

55.6

483

144

18"

450

457

710

628.6

36

24

58.8

533

157

20"

500

508

775

685.8

36

24

62

587

160

24"

600

610

915

812.8

42

24

68.3

702

167