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ANSI Flanges-Slip-on flange


ASME/ANSI B16.5 Class 150 SO

Nominal Pipe Size 

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Bore

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approximate Weight kgs

NPS

O

R

tf

X

Y

B

W

I

n


1/2

90

34.9

9.6

30

14

22.2

60.3

15.9

4

0.41

3/4

100

42.9

11.2

38

14

27.7

69.9

15.9

4

0.59

1

110

50.8

12.7

49

16

34.5

79.4

15.9

4

0.82

1 1/4

115

63.5

14.3

59

19

43.2

88.9

15.9

4

0.99

1 1/2

125

73.0

15.9

65

21

49.5

98.4

15.9

4

1.28

2

150

92.1

17.5

78

24

61.9

120.7

19.1

4

2.01

2 1/2

180

104.8

20.7

90

27

74.6

139.7

19.1

4

3.41

3

190

127.0

22.3

108

29

90.7

152.4

19.1

4

3.88

3 1/2

215

139.7

22.3

122

30

103.4

177.8

19.1

8

4.80

4

230

157.2

22.3

135

32

116.1

190.5

19.1

8

5.45

5

255

185.7

22.3

164

35

143.8

215.9

22.2

8

6.22

6

280

215.9

23.9

192

38

170.7

241.3

22.2

8

7.57

8

345

269.9

27.0

246

43

221.5

298.5

22.2

8

12.42

10

405

323.8

28.6

305

48

276.2

362.0

25.4

12

16.47

12

485

381.0

30.2

365

54

327.0

431.8

25.4

12

26.80

14

535

412.8

33.4

400

56

359.2

476.3

28.6

12

35.21

16

595

469.9

35.0

457

62

410.5

539.8

28.6

16

44.61

18

635

533.4

38.1

505

67

461.8

577.9

31.8

16

49.19

20

700

584.2

41.3

559

71

513.1

635.0

31.8

20

62.62

24

815

692.2

46.1

663

81

616.0

749.3

34.9

20

88.23


ASME/ANSI B16.5 Class 300 SO

Nominal Pipe Size 

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Bore

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approxi-mate Weight kgs

NPS

O

R

tf

X

Y

B

W

I

n


1/2

95

34.9

12.7

38

21

22.2

66.7

15.9

4

0.65

3/4

115

42.9

14.3

48

24

27.7

82.6

19.1

4

1.08

1

125

50.8

15.9

54

25

34.5

88.9

19.1

4

1.39

1 1/4

135

63.5

17.5

64

25

43.2

98.4

19.1

4

1.74

1 1/2

155

73.0

19.1

70

29

49.5

114.3

22.2

4

2.49

2

165

92.1

20.7

84

32

61.9

127.0

19.1

8

2.90

2 1/2

190

104.8

23.9

100

37

74.6

149.2

22.2

8

4.35

3

210

127.0

27.0

117

41

90.7

168.3

22.2

8

5.89

3 1/2

230

139.7

28.6

133

43

103.4

184.2

22.2

8

7.48

4

255

157.2

30.2

146

46

116.1

200.0

22.2

8

9.77

5

280

185.7

33.4

178

49

143.8

235.0

22.2

8

12.31

6

320

215.9

35.0

206

51

170.7

269.9

22.2

12

16.07

8

380

269.9

39.7

260

60

221.5

330.2

25.4

12

24.07

10

445

323.8

46.1

321

65

276.2

387.4

28.6

16

34.38

12

520

381.0

49.3

375

71

327.0

450.8

31.8

16

49.80

14

585

412.8

52.4

425

75

359.2

514.4

31.8

20

70.12

16

650

469.9

55.6

483

81

410.5

571.5

34.9

20

89.56

18

710

533.4

58.8

533

87

461.8

628.6

34.9

24

108.10

20

775

584.2

62.0

587

94

513.1

685.8

34.9

24

134.87

24

915

692.2

68.3

702

105

616.0

812.8

41.3

24

202.58


Note: 2 mm raised face regularly furnished on Classes 150 and 300 unless otherwise ordered.

Nominal Pipe Size 

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Bore

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approximate Weight kgs

NPS

O

R

tf

X

Y

B

W

I

n


1/2

90

34.9

9.6

30

14

22.2

60.3

15.9

4

0.41

3/4

100

42.9

11.2

38

14

27.7

69.9

15.9

4

0.59

1

110

50.8

12.7

49

16

34.5

79.4

15.9

4

0.82

1 1/4

115

63.5

14.3

59

19

43.2

88.9

15.9

4

0.99

1 1/2

125

73.0

15.9

65

21

49.5

98.4

15.9

4

1.28

2

150

92.1

17.5

78

24

61.9

120.7

19.1

4

2.01

2 1/2

180

104.8

20.7

90

27

74.6

139.7

19.1

4

3.41

3

190

127.0

22.3

108

29

90.7

152.4

19.1

4

3.88

3 1/2

215

139.7

22.3

122

30

103.4

177.8

19.1

8

4.80

4

230

157.2

22.3

135

32

116.1

190.5

19.1

8

5.45

5

255

185.7

22.3

164

35

143.8

215.9

22.2

8

6.22

6

280

215.9

23.9

192

38

170.7

241.3

22.2

8

7.57

8

345

269.9

27.0

246

43

221.5

298.5

22.2

8

12.42

10

405

323.8

28.6

305

48

276.2

362.0

25.4

12

16.47

12

485

381.0

30.2

365

54

327.0

431.8

25.4

12

26.80

14

535

412.8

33.4

400

56

359.2

476.3

28.6

12

35.21

16

595

469.9

35.0

457

62

410.5

539.8

28.6

16

44.61

18

635

533.4

38.1

505

67

461.8

577.9

31.8

16

49.19

20

700

584.2

41.3

559

71

513.1

635.0

31.8

20

62.62

24

815

692.2

46.1

663

81

616.0

749.3

34.9

20

88.23


ASME/ANSI B16.5 Class 600 SO

Nominal Pipe Size 

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Bore

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approximate Weight kgs

NPS

O

R

tf

X

Y

B

W

I

n


1/2

95

34.9

14.3

38

22

22.2

66.7

15.9

4

0.74

3/4

115

42.9

15.9

48

25

27.7

82.6

19.1

4

1.21

1

125

50.8

17.5

54

27

34.5

88.9

19.1

4

1.56

1 1/4

135

63.5

20.7

64

29

43.2

98.4

19.1

4

2.11

1 1/2

155

73.0

22.3

70

32

49.5

114.3

22.2

4

2.97

2

165

92.1

25.4

84

37

61.9

127.0

19.1

8

3.64

2 1/2

190

104.8

28.6

100

41

74.6

149.2

22.2

8

5.26

3

210

127.0

31.8

117

46

90.7

168.3

22.2

8

7.08

3 1/2

230

139.7

35.0

133

49

103.4

184.2

25.4

8

8.99

4

275

157.2

38.1

152

54

116.1

215.9

25.4

8

14.83

5

330

185.7

44.5

189

60

143.8

266.7

28.6

8

24.46

6

355

215.9

47.7

222

67

170.7

292.1

28.6

12

28.78

8

420

269.9

55.6

273

76

221.5

349.2

31.8

12

43.77

10

510

323.8

63.5

343

86

276.2

431.8

34.9

16

71.35

12

560

381.0

66.7

400

92

327.0

489.0

34.9

20

84.95

14

605

412.8

69.9

432

94

359.2

527.0

38.1

20

100.05

16

685

469.9

76.2

495

106

410.5

603.2

41.3

20

141.69

18

745

533.4

82.6

546

117

461.8

654.0

44.5

20

175.13

20

815

584.2

88.9

610

127

513.1

723.9

44.5

24

222.87

24

940

692.2

101.6

718

140

616.0

838.2

50.8

24

313.75


ASME/ANSI B16.5 Class 900 SO

Nominal Pipe Size 

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Bore

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approxi-mate Weight kgs

NPS

O

R

tf

X

Y

B

W

I

n


1/2

120

34.9

22.3

38

32

22.2

82.6

22.2

4

1.73

3/4

130

42.9

25.4

44

35

27.7

88.9

22.2

4

2.33

1

150

50.8

28.6

52

41

34.5

101.6

25.4

4

3.48

1 1/4

160

63.5

28.6

64

41

43.2

111.1

25.4

4

4.00

1 1/2

180

73.0

31.8

70

44

49.5

123.8

28.6

4

5.54

2

215

92.1

38.1

105

57

61.9

165.1

25.4

8

9.79

2 1/2

245

104.8

41.3

124

64

74.6

190.5

28.6

8

13.82

3

240

127.0

38.1

127

54

90.7

190.5

25.4

8

11.51

4

290

157.2

44.5

159

70

116.1

235.0

31.8

8

19.52

5

350

185.7

50.8

190

79

143.8

279.4

34.9

8

32.14

6

380

215.9

55.6

235

86

170.7

317.5

31.8

12

41.04

8

470

269.9

63.5

298

102

221.5

393.7

38.1

12

70.97

10

545

323.8

69.9

368

108

276.2

469.9

38.1

16

100.32

12

610

381.0

79.4

419

117

327.0

533.4

38.1

20

133.26

14

640

412.8

85.8

451

130

359.2

558.8

41.3

20

152.57

16

705

469.9

88.9

508

133

410.5

616.0

44.5

20

185.15

18

785

533.4

101.6

565

152

461.8

685.8

50.8

20

256.28

20

855

584.2

108.0

622

159

513.1

749.3

54.0

20

315.13

24

1040

692.2

139.7

749

203

616.0

901.7

66.7

20

603.79


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