Flange
Size

Wenzhou CHENGJIU Flange Manufacruring Co., LTD

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ANSI (ASME / ASA) B16.5 FLANGE

Threaded Flange

ANSI, ASME, ASA, B16.5 THREADED SCREWED FLANGE
CLASS 150 / 300 / 600

Flange Dimensions & Approximate Masses

ANSI, ASME, ASA, B16.5 150lb/sq.in. Threaded Flange NPT

Pipe

Flange Data

Hub Data

Raised Face

Drilling Data

Weight

　 Nominal Size

Outside Dia

Overall Dia

Flange Thickness min

Overall Length

Threaded Length min

Hub Dia

Face Dia

Number of Holes

Bolt Hole Dia

Dia of Circle of Holes

Kg/ Piece

　In Mm

0.84

3.50

0.440

0.620

1.190

1.38

0.62

2.38

0.39

21.3

88.90

11.20

15.70

30.20

35.10

15.7

60.45

1.05

3.88

0.500

0.620

1.500

1.69

0.62

2.75

0.56

26.7

98.60

12.70

15.70

38.10

42.9

15.7

69.85

1.315

4.25

0.560

0.690

1.940

0.62

3.12

0.78

33.4

108.00

14.20

17.50

49.30

50.8

15.7

79.25

1 ¼

1.66

4.62

0.620

0.810

2.310

2.5

0.62

3.50

1.03

42.2

117.30

15.70

20.60

58.70

63.5

15.7

88.90

1 ½

1.9

5.00

0.690

0.880

2.560

2.88

0.62

3.88

1.32

48.3

127.00

17.50

22.40

65.00

73.15

15.7

98.60

2.375

6.00

0.750

1.000

3.060

3.62

0.75

4.75

2.06

60.3

152.40

19.10

25.40

77.70

91.9

19.10

120.70

2 ½

2.875

7.00

0.880

1.120

3.560

4.12

0.75

5.50

3.28

177.80

22.40

28.40

90.40

104.6

19.10

139.70

3.5

7.50

0.940

1.190

4.250

0.75

6.00

3.85

88.9

190.50

23.90

30.20

108.00

127

19.10

152.40

3 ½

8.50

0.940

1.250

4.810

5.5

0.75

7.00

4.81

101.6

215.90

23.90

31.75

122.20

139.7

19.10

177.80

4.5

9.00

0.940

1.310

5.310

6.19

0.75

7.50

5.30

114.3

228.60

23.90

33.30

134.90

157.2

19.10

190.50

5.563

10.00

0.940

1.440

6.440

7.31

0.88

8.50

6.07

141.3

254.00

23.90

36.60

163.60

185.7

22.40

215.90

6.625

11.00

1.000

1.560

7.560

8.5

0.88

9.50

7.45

168.3

279.40

25.40

39.60

192.00

215.9

22.40

241.30

8.625

13.50

1.120

1.750

9.690

10.62

0.88

11.75

12.10

219.1

342.90

28.40

44.50

246.10

269.7

22.40

298.50

10.75

16.00

1.190

1.940

12.00

12.75

1.00

14.25

16.50

273

406.40

30.20

49.30

304.80

323.8

25.40

362.00

12.75

19.00

1.250

2.190

14.380

1.00

17.00

26.20

323.8

482.60

31.75

55.60

365.30

381

25.40

431.80

21.00

1.380

2.250

15.750

16.25

1.12

18.75

34.60

355.6

533.40

35.10

57.15

400.10

412.7

28.40

476.30

23.50

1.440

2.500

18.00

18.5

1.12

21.25

44.80

406.4

596.90

36.60

63.50

457.20

469.9

28.40

539.80

25.00

1.560

2.690

19.880

1.25

22.75

48.90

457.2

635.00

39.60

68.30

505.00

533.4

31.75

577.90

27.50

1.690

2.880

22.00

1.25

25.00

61.90

508

698.50

42.90

73.15

558.80

584.2

31.75

635.00

32.00

1.880

3.250

26.120

27.25

1.38

29.50

86.90

609.6

812.80

47.80

82.60

663.40

692.1

35.10

749.30

NOTE:

1. The thread conforms to ASME B1.20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL recount threads.)
2. Class 150 threaded flanges are made without a counterbore. Threads are chamfered to the major diameter (approx.) at an angle of 45° (approx.) at the back of the flange.
3. Weights are based on manufacturer's data and are approximate.
4. For tolerances +-0.5mm.

ANSI, ASME, ASA, B16.5 300lb/sq.in. Threaded Flange NPT

Pipe

Flange Data

Hub Data

Raised Face

Drilling Data

Weight

　 Nominal Size

Outside Dia

Overall Dia

Counter Bore

Flange Thickness min

Overall Length

Threaded Length min

Hub Dia

Face Dia

Number of Holes

Bolt Hole Dia

Dia of Circle of Holes

Kg/ Piece

　In Mm

0.84

3.75

0.93

0.56

0.88

0.62

1.5

1.38

0.62

2.62

0.64

21.3

95.3

23.6

14.2

22.3

15.7

38.1

15.7

66.55

1.05

4.62

1.14

0.62

1.88

1.69

0.75

3.25

1.12

26.7

117.3

15.7

25.4

15.7

42.7

42.9

82.5

1.315

4.88

1.41

0.69

1.06

0.69

2.12

0.75

3.5

1.36

33.4

124

35.8

17.5

26.9

17.5

53.8

50.8

88.9

1 ¼

1.66

5.25

1.75

0.75

1.06

0.81

2.5

0.75

3.88

1.68

42.2

133.4

44.4

26.9

20.6

63.5

98.5

1 ½

1.9

6.12

1.99

0.81

1.19

0.88

2.75

2.88

0.88

4.5

2.49

48.3

155.4

50.5

20.6

30.2

22.3

69.85

73.15

22.3

114.3

2.375

6.5

2.5

0.88

1.31

1.12

3.31

3.62

0.75

2.87

60.3

165.1

63.5

22.3

33.2

28.4

91.9

127

2 ½

2.875

7.5

1.5

1.25

3.94

4.12

0.88

5.88

4.32

190.5

76.2

25.4

38.1

31.7

100

104.6

22.3

149.3

3.5

8.25

3.63

1.12

1.69

1.25

4.62

0.88

6.62

5.85

88.9

209.6

92.2

28.4

42.9

31.7

117.3

127

22.3

168.1

3 ½

4.13

1.19

1.75

1.44

5.25

5.5

0.88

7.25

7.34

101.6

228.6

104.9

30.2

44.4

36.5

133.3

139.7

22.3

184.1

4.5

4.63

1.25

1.88

1.44

5.75

6.19

0.88

7.88

9.61

114.3

254

117.6

31.7

47.7

36.5

146

157.2

22.3

200.1

5.563

5.69

1.38

1.69

7.31

0.88

9.25

12.3

141.3

279.4

144.5

50.8

42.9

177.8

185.7

22.3

234.9

6.625

12.5

6.75

1.44

2.06

1.81

8.12

8.5

0.88

10.62

15.6

168.3

317.5

171.4

36.5

52.3

45.9

206.2

215.9

22.3

269.7

8.625

8.75

1.62

2.44

10.25

10.62

24.2

219.1

381

222.3

41.1

61.9

50.8

260.3

269.7

25.4

330.2

10.75

17.5

10.88

1.88

2.62

2.19

12.62

12.75

1.12

15.25

34.1

273

444.5

276.3

47.7

66.55

55.6

320.5

323.8

28.4

387.3

12.75

20.5

12.94

2.88

2.38

14.75

1.25

17.75

49.8

323.8

520.7

328.7

50.8

73.15

60.45

374.6

381

31.7

450.8

14.19

2.12

2.5

16.75

16.25

1.25

20.25

69.9

355.6

584.2

360.4

53.8

76.2

63.5

425.4

412.7

31.7

514.3

25.5

16.19

2.25

3.25

2.69

18.5

1.38

22.5

88.1

406.4

647.7

411.2

57.15

82.5

68.3

482.6

469.9

571.5

18.19

2.38

3.5

2.75

1.38

24.75

109

457.2

711.2

462

60.45

88.9

69.85

533.4

628.6

30.5

20.19

2.5

3.75

2.88

23.12

1.38

134

508

774.7

512.8

63.5

95.2

73.15

587.2

584.2

685.8

24.19

2.75

4.19

3.25

27.62

27.25

1.62

201

609.6

914.4

614.4

69.85

106.4

82.5

701.5

692.1

41.1

812.8

NOTE:

1. Class 300 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.

ANSI, ASME, ASA, B16.5 600lb/sq.in. Threaded Flange NPT
Pipe		Flange Data					Hub Data	Raised Face	Drilling Data			Weight
Nominal Size		A	B	C	D	E	F	G	H	I	J
	Outside Dia	Overall Dia	Counter Bore	Flange Thickness min	Overall Length	Threaded Length min	Hub Dia	Face Dia	Number of Holes	Bolt Hole Dia	Dia of Circle of Holes	Kg/ Piece
	In Mm	In Mm	In Mm	In Mm	In Mm	In Mm	In Mm	In Mm	Number of Holes	In Mm	In Mm	Kg/ Piece
½	0.84	3.75	0.93	0.56	0.88	0.62	1.5	1.38	4	0.62	2.62	0.74
	21.3	95.3	23.6	14.2	22.4	15.7	38.1	35		15.7	66.55
¾	1.05	4.62	1.14	0.62	1	0.62	1.88	1.69	4	0.75	3.25	1.27
	26.7	117.3	29	15.7	25.4	15.7	47.8	42.9		19.1	82.6
1	1.315	4.88	1.41	0.69	1.12	0.69	2.12	2	4	0.75	3.5	1.52
	33.4	124	35.8	17.5	28.4	17.5	53.8	50.8		19.1	88.9
1 ¼	1.66	5.25	1.75	0.81	1.12	0.81	2.5	2.5	4	0.75	3.88	2.03
	42.2	133.4	44.4	20.6	28.4	20.6	63.5	63.5		19.1	98.6
1 ½	1.9	6.12	1.99	0.88	1.25	0.88	2.75	2.88	4	0.88	4.5	2.96
	48.3	155.4	50.5	22.4	31.75	22.4	69.85	73.15		22.4	114.3
2	2.375	6.5	2.5	1	1.44	1.12	3.31	3.62	8	0.75	5	3.62
	60.3	165.1	63.5	25.4	36.6	28.4	84.1	91.9		19.1	127
2 ½	2.875	7.5	3	1.12	1.62	1.25	3.94	4.12	8	0.88	5.88	5.28
	73	190.5	76.2	28.4	41.1	31.75	100.1	104.6		22.4	149.4
3	3.5	8.25	3.63	1.25	1.81	1.38	4.62	5	8	0.88	6.62	7
	88.9	209.6	92.2	31.75	46	35.1	117.3	127		22.4	168.1
3 ½	4	9	4.13	1.38	1.94	1.56	5.25	5.5	8	1	7.25	8.84
	101.6	228.6	104.9	35.1	49.3	39.6	133.4	139.7		25.4	184.2
4	4.5	10.75	4.63	1.5	2.12	1.62	6	6.19	8	1	8.5	14.5
	114.3	273.1	117.6	38.1	53.8	41.1	152.4	157.2		25.4	215.9
5	5.563	13	5.69	1.75	2.38	1.88	7.44	7.31	8	1.12	10.5	24.4
	141.3	330.2	144.5	44.5	60.45	47.8	189	185.7		28.4	266.7
6	6.625	14	6.75	1.88	2.62	2	8.75	8.5	12	1.12	11.5	28.7
	168.3	355.6	171.4	47.8	66.55	50.8	222.3	215.9		28.4	292.1
8	8.625	16.5	8.75	2.19	3	2.25	10.75	10.62	12	1.25	13.75	43.4
	219.1	419.1	222.3	55.6	76.2	57.15	273.1	269.7		31.75	349.3
10	10.75	20	10.88	2.5	3.38	2.56	13.5	12.75	16	1.38	17	70.3
	273	508	276.3	63.5	85.9	65	342.9	323.8		35.1	431.8
12	12.75	22	12.94	2.62	3.62	2.75	15.75	15	20	1.38	19.25	84.2
	323.8	558.8	328.7	66.55	91.9	69.85	400.1	381		35.1	489
14	14	23.75	14.19	2.75	3.69	2.88	17	16.25	20	1.5	20.75	98.7
	355.6	603.3	360.4	69.85	93.7	73.15	431.8	412.7		38.1	527.1
16	16	27	16.19	3	4.19	3.06	19.5	18.5	20	1.62	23.75	142
	406.4	685.8	411.2	76.2	106.4	77.7	495.3	469.9		41.1	603.3
18	18	29.25	18.19	3.25	4.62	3.12	21.5	21	20	1.75	25.75	173
	457.2	743	462	82.6	117.3	79.25	546.1	533.4		44.5	654.1
20	20	32	20.19	3.5	5	3.25	24	23	24	1.75	28.5	220
	508	812.8	512.8	88.9	127	82.6	609.6	584.2		44.5	723.9
24	24	37	24.19	4	5.5	3.62	28.25	27.25	24	2	33	312
	609.6	939.8	614.4	101.6	139.7	91.9	717.6	692.1		50.8	838.2

NOTE:
1. Class 600 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.


Production Capacity & Purchase Details

1.		Supply Flange Dimension DN15 - DN2000 (1/2" - 80"), Forged Flange.
2.		Material Carbon Steel: ASTM A105, A181, A350 LF1, A350LF2, A350LF3, A36, A234 WPB, Q235B, 20#, 20Mn etc.
3.		Material Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321 etc.
4.		Flanges Anti Rust: Anti Rust Oil, Black Paint, Yellow Paint Coating, Hot Dipped Galvanized, Cold Galvanized etc.
5.		Monthly Output: 3000 tons per Month.
6.		Delivery Terms: CIF, CFR, FOB, EXW.
7.		Payment Terms: Wire Transfer (T/T), Irrevocable L/C at Sight etc.
8.		Minimum Order Quantity: 1Ton or 100Pcs.
9.		Quality Guarantee: EN10204 3.1 Certificate, Mill Certificate, Third Party Inspection, Free Replacement Service.
10.		Find More Requirements In Flanges Market.

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