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ANSI Flanges-Threaded Flanges, TH Flanges


ASME/ANSI B16.5 Class 150 TH

Nominal Pipe Size

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Thread Length Threaded Min.

Bore

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approximate Weight kgs

NPS

O

R

tf

X

Y

T

B

W

I

n


1/2

90

34.9

9.6

30

14

16

22.2

60.3

15.9

4

0.41

3/4

100

42.9

11.2

38

14

16

27.7

69.9

15.9

4

0.59

1

110

50.8

12.7

49

16

17

34.5

79.4

15.9

4

0.82

1 1/4

115

63.5

14.3

59

19

21

43.2

88.9

15.9

4

0.99

1 1/2

125

73.0

15.9

65

21

22

49.5

98.4

15.9

4

1.28

2

150

92.1

17.5

78

24

25

61.9

120.7

19.1

4

2.01

2 1/2

180

104.8

20.7

90

27

29

74.6

139.7

19.1

4

3.41

3

190

127.0

22.3

108

29

30

90.7

152.4

19.1

4

3.88

3 1/2

215

139.7

22.3

122

30

32

103.4

177.8

19.1

8

4.80

4

230

157.2

22.3

135

32

33

116.1

190.5

19.1

8

5.45

5

255

185.7

22.3

164

35

36

143.8

215.9

22.2

8

6.22

6

280

215.9

23.9

192

38

40

170.7

241.3

22.2

8

7.57

8

345

269.9

27.0

246

43

44

221.5

298.5

22.2

8

12.42

10

405

323.8

28.6

305

48

49

276.2

362.0

25.4

12

16.47

12

485

381.0

30.2

365

54

56

327.0

431.8

25.4

12

26.80

14

535

412.8

33.4

400

56

57

359.2

476.3

28.6

12

35.21

16

595

469.9

35.0

457

62

64

410.5

539.8

28.6

16

44.61

18

635

533.4

38.1

505

67

68

461.8

577.9

31.8

16

49.19

20

700

584.2

41.3

559

71

73

513.1

635.0

31.8

20

62.62

24

815

692.2

46.1

663

81

83

616.0

749.3

34.9

20

88.23


ASME/ANSI B16.5 Class 300 TH

Nominal Pipe Size

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Thread Length Threaded Min.

Bore

Counter-bore Threaded Flange, Min.

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approxi-mate Weight kgs

NPS

O

R

tf

X

Y

T

B

Q

W

I

n


1/2

95

34.9

12.7

38

21

16

22.2

23.6

66.7

15.9

4

0.65

3/4

115

42.9

14.3

48

24

16

27.7

29.0

82.6

19.1

4

1.08

1

125

50.8

15.9

54

25

18

34.5

35.8

88.9

19.1

4

1.39

1 1/4

135

63.5

17.5

64

25

21

43.2

44.4

98.4

19.1

4

1.74

1 1/2

155

73.0

19.1

70

29

23

49.5

50.3

114.3

22.2

4

2.49

2

165

92.1

20.7

84

32

29

61.9

63.5

127.0

19.1

8

2.90

2 1/2

190

104.8

23.9

100

37

32

74.6

76.2

149.2

22.2

8

4.35

3

210

127.0

27.0

117

41

32

90.7

92.2

168.3

22.2

8

5.89

3 1/2

230

139.7

28.6

133

43

37

103.4

104.9

184.2

22.2

8

7.48

4

255

157.2

30.2

146

46

37

116.1

117.6

200.0

22.2

8

9.77

5

280

185.7

33.4

178

49

43

143.8

144.4

235.0

22.2

8

12.31

6

320

215.9

35.0

206

51

47

170.7

171.4

269.9

22.2

12

16.07

8

380

269.9

39.7

260

60

51

221.5

222.2

330.2

25.4

12

24.07

10

445

323.8

46.1

321

65

56

276.2

276.2

387.4

28.6

16

34.38

12

520

381.0

49.3

375

71

61

327.0

328.6

450.8

31.8

16

49.80

14

585

412.8

52.4

425

75

64

359.2

360.4

514.4

31.8

20

70.12

16

650

469.9

55.6

483

81

69

410.5

411.2

571.5

34.9

20

89.56

18

710

533.4

58.8

533

87

70

461.8

462.0

628.6

34.9

24

108.10

20

775

584.2

62.0

587

94

74

513.1

512.8

685.8

34.9

24

134.87

24

915

692.2

68.3

702

105

83

616.0

614.4

812.8

41.3

24

202.58


ASME/ANSI B16.5 Class 600 TH

Nominal Pipe Size

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Thread Length Threaded Min.

Bore

Counter-bore Threaded Flange, Min.

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approxi-mate Weight kgs

NPS

O

R

tf

X

Y

T

B

Q

W

I

n


1/2

95

34.9

14.3

38

22

16

22.2

23.6

66.7

15.9

4

0.74

3/4

115

42.9

15.9

48

25

16

27.7

29.0

82.6

19.1

4

1.21

1

125

50.8

17.5

54

27

18

34.5

35.8

88.9

19.1

4

1.56

1 1/4

135

63.5

20.7

64

29

21

43.2

44.4

98.4

19.1

4

2.11

1 1/2

155

73.0

22.3

70

32

23

49.5

50.6

114.3

22.2

4

2.97

2

165

92.1

25.4

84

37

29

61.9

63.5

127.0

19.1

8

3.64

2 1/2

190

104.8

28.6

100

41

32

74.6

76.2

149.2

22.2

8

5.26

3

210

127.0

31.8

117

46

35

90.7

92.2

168.3

22.2

8

7.08

3 1/2

230

139.7

35.0

133

49

40

103.4

104.9

184.2

25.4

8

8.99

4

275

157.2

38.1

152

54

42

116.1

117.6

215.9

25.4

8

14.83

5

330

185.7

44.5

189

60

48

143.8

144.4

266.7

28.6

8

24.46

6

355

215.9

47.7

222

67

51

170.7

171.4

292.1

28.6

12

28.78

8

420

269.9

55.6

273

76

58

221.5

222.2

349.2

31.8

12

43.77

10

510

323.8

63.5

343

86

66

276.2

276.2

431.8

34.9

16

71.35

12

560

381.0

66.7

400

92

70

327.0

328.6

489.0

34.9

20

84.95

14

605

412.8

69.9

432

94

74

359.2

360.4

527.0

38.1

20

100.05

16

685

469.9

76.2

495

106

78

410.5

411.2

603.2

41.3

20

141.69

18

745

533.4

82.6

546

117

80

461.8

462.0

654.0

44.5

20

175.13

20

815

584.2

88.9

610

127

83

513.1

512.8

723.9

44.5

24

222.87

24

940

692.2

101.6

718

140

93

616.0

614.4

838.2

50.8

24

313.75


ASME/ANSI B16.5 Class 900 TH

Nominal Pipe Size

Outside Diameter of Flange

Diameter of Raised Face

Thickness of Flanges Min.

Diameter of Hub

Length Through Hub

Thread Length Threaded Min.

Bore

Counter-bore Threaded Flange, Min.,

Diameter of Bolt Circle

Diameter of Bolt Holes

Number of Bolts

Approxi-mate Weight kgs

NPS

O

R

tf

X

Y

T

B

Q

W

I

n


1/2

120

34.9

22.3

38

32

23

22.2

23.6

82.6

22.2

4

1.73

3/4

130

42.9

25.4

44

35

26

27.7

29.0

88.9

22.2

4

2.33

1

150

50.8

28.6

52

41

29

34.5

35.8

101.6

25.4

4

3.48

1 1/4

160

63.5

28.6

64

41

31

43.2

44.4

111.1

25.4

4

4.00

1 1/2

180

73.0

31.8

70

44

32

49.5

50.3

123.8

28.6

4

5.54

2

215

92.1

38.1

105

57

39

61.9

63.5

165.1

25.4

8

9.79

2 1/2

245

104.8

41.3

124

64

48

74.6

76.2

190.5

28.6

8

13.82

3

240

127.0

38.1

127

54

42

90.7

92.2

190.5

25.4

8

11.51

4

290

157.2

44.5

159

70

48

116.1

117.6

235.0

31.8

8

19.52

5

350

185.7

50.8

190

79

54

143.8

144.4

279.4

34.9

8

32.14

6

380

215.9

55.6

235

86

58

170.7

171.4

317.5

31.8

12

41.04

8

470

269.9

63.5

298

102

64

221.5

222.2

393.7

38.1

12

70.97

10

545

323.8

69.9

368

108

72

276.2

276.2

469.9

38.1

16

100.32

12

610

381.0

79.4

419

117

77

327.0

328.6

533.4

38.1

20

133.26

14

640

412.8

85.8

451

130

83

359.2

360.4

558.8

41.3

20

152.57

16

705

469.9

88.9

508

133

86

410.5

411.2

616.0

44.5

20

185.15

18

785

533.4

101.6

565

152

89

461.8

462.0

685.8

50.8

20

256.28

20

855

584.2

108.0

622

159

93

513.1

512.8

749.3

54.0

20

315.13

24

1040

692.2

139.7

749

203

102

616.0

614.4

901.7

66.7

20

603.79

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