Weld Neck Flanges

Weld Neck Flanges

Weld Neck Flange is largely manufactured and distributed by Pipe Fittings Suppliers since 1992. Weld Neck Flange is mostly used in process piping, it gives a highest level of joint integrity due to butt welded in pipe. These are mostly used in high level temperature and application. They are very bulky and very costly with respect to other flanges. Largely Weld Beck Flanges are used in many industries like oil, petroleum, gas and other chemical and liquid industries. The dimensions include of class from 150 to 2500. They are covered with ASME B 16.5 which covers pipe flanges and flanged fittings for size NPS ½” to 24” and NPS 26” to 60” should be for ASME B16.47

Weld Neck Flanges Supplier

Being certified & Award winner for Supplier & Exporter of industrial stainless Steel piping materials we have the best pipes and tubes solutions with best pricing. All of our best products are tested on different parameter for excellent product value in the market. Our business connections are beneficial to more than 600 reputed organisations in more than 30+ countries from last 25 years with 95% of customer retention. Today we are leading the market with best and top Slip On flanges around the world.

These flanges are suitable for extreme environments that have high temperature. The resilience of this type of flanges is achieved when it works against stress with pipe that is welded as it also successfully takes pressure of up to 5,000 psi. Welded Neck Flanges today is widely distributed in many countries for its high quality use in various industries such as petroleum, oil, gas and liquid. UAE, Saudi Arabia, Kuwait, Qatar, Egypt, Turkey, Oman, Africa, Malaysia & many countries in USA & Europe are the main market where our products are exported. Being an ISO 9001, 14001, OHSAS 18001 with PED 97/23/EC approved Supplier & Exporter of Industrial raw materials. Other stainless steel alloy products like Pipe Elbow, Pipe Tee, Pipe Cross, Lap Joints, Butt-Weld Pipes and many more are also available with other types of forged flanges available

Weld Neck Flanges Specification


  • Type: WN Forged Flange , Weld Neck Flanges – WNRF
  • Material:Stainless Steel Weld Neck Flanges :ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904LCarbon Steel Weld Neck Flanges: ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70Alloy Steel Weld Neck Flanges: ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91Duplex Steel Weld Neck Flanges: ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61High Nickel Alloy Weld Neck Flanges: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276, Copper Nickel, Hastelloy, Nickel, Monel, Inconel, Alloy20.
  • Standard: ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 ,JIS,DIN,BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-12820DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673B.S : BS4504 , BS4504, BS1560, BS10
  • Class: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
  • Size: 1/2-78 inch (DN15-DN2000)
  • Pressure: ANSI class 150,300,600,1500,2500, DIN PN6,PN10,PN16,PN25,PN40,PN64,PN100,PN160
  • Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
  • Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
  • E-catalogue: Available , please visit catalogue of flange
  • Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.

 

ASME/ ANSI B16.5 Weld Neck (WN) Pipe Flanges Manufacturing Materials :


Dimensions Base Material Pressure Rating
ASME B16.5 ASTM A182 (Forgings) ASTM A240 (Plate) 150#. 300#. 400#. 600#. 900#. 1500#. 2500#.
API 605 ASTM A182 (Forgings) ASTM A240 (Plate) 150#. 300#. 400#. 600#. 900#. 1500#. 2500#.
ASME B16.47series A & B ASTM A182 (Forgings) ASTM A240 (Plate) 150#. 300#. 400#. 600#. 900#. 1500#. 2500#.
EN1092-1 ASTM A182 (Forgings) PN2.5. PN6. PN10. PN16. PN25. PN40. PN63. PN100. PN160. PN250. PN320. PN400.
BS4504 BS970 (Bar)ASTM A240 (Plate) ASTM A182 (Forgings) PN2.5. PN6. PN10. PN16. PN25. PN40. PN63. PN100. PN160.
BS10 BS970 (Bar)ASTM A240 (Plate) ASTM A182 (Forgings)  

Typical Stainless Steel 18/8 Grade Designations:


ASTM

BS

DIN

EURONORM

304

304S15

X5 Cr Ni 18 10

1.4301

304L

304S11

X2 Cr Ni 18 9

1.4307

316

316S31

X5 Cr Ni Mo 17 12 2

1.4401

316L

316S11

X2 Cr Ni Mo 17 13 2

1.4404

321

321S31

X6 Cr Ni 18 10

1.4541

316Ti

320S31

X6 Cr Ni Mo Ti 17 12 2

1.4571

SMO

254SMO

X1 Cr Ni Mo Cu N 20 18 7

1.4547

 

Technical Information – Specifications, Dimensions Weld Neck Flanges


  • ANSI ASME B16.5 Class 150 Weld Neck Flanges Dimensions
  • ANSI ASME B16.5 Class 300 Weld Neck Flanges Dimensions
  • ANSI ASME B16.5 Class 400 Weld Neck Flanges Dimensions
  • ANSI ASME B16.5 Class 600 Weld Neck Flanges Dimensions
  • ANSI ASME B16.5 Class 900 Weld Neck Flanges Dimensions
  • ANSI ASME B16.5 Class 1500 Weld Neck Flanges Dimensions
  • ANSI ASME B16.5 Class 2500 Weld Neck Flanges Dimensions
  • ANSI/ASME B16.47 Series B Weld Neck Flange 75lb
  • ANSI/ASME B16.47 Series B Weld Neck Flange 150lb
  • ANSI/ASME B16.47 Series B Weld Neck Flange 300lb
  • ANSI/ASME B16.47 Series B Weld Neck Flange 600lb
  • ANSI/ASME B16.47 Series B Weld Neck Flange 400lb
  • ANSI/ASME B16.47 Series B Weld Neck Flange 900lb
  • ANSI/ASME B16.47 Series A (MSS SP44) Weld Neck Flange 150lb
  • ANSI/ASME B16.47 Series A (MSS SP44) Weld Neck Flange 300lb
  • ANSI/ASME B16.47 Series A (MSS SP44) Weld Neck Flange 400lb
  • ANSI/ASME B16.47 Series A (MSS SP44) Weld Neck Flange 600lb
  • ANSI/ASME B16.47 Series A (MSS SP44) Weld Neck Flange 900lb

Dimension of Weld Neck Flanges

Dimensions of Weld Neck ASME B16.5 – class 150 Lbs


 

Nominal size

Outside diam. of flange

Thick. of flange

Diam. of raised face

Diam of hub at base

Diam. of hub at point of welding

Length thru hub

No. of holes

Diam. of holes

Diam. of bolts

Diam. of bolt circle

Approx. weight pounds Kg

   

O

C

R

X

A

Y

         

in.

1/2″

3.50

0.44

1.38

1.19

0.84

1.88

4

0.62

1/2

2.38

2

mm.

 

88.9

11.2

35.1

30.2

21.3

47.8

 

15.7

12.7

60.5

1

in.

3/4″

3.88

0.50

1.69

1.50

1.05

2.06

4

0.62

1/2

2.75

2

mm.

 

98.6

12.7

42.9

38.1

26.7

52.3

 

15.7

12.7

69.9

1

in.

1″

4.25

0.56

2.00

1.94

1.32

2.19

4

0.62

1/2

3.12

3

mm.

 

108.0

14.2

50.8

49.3

33.5

55.6

 

15.7

12.7

79.2

1

in.

1 1/4″

4.62

0.62

2.50

2.31

1.66

2.25

4

0.62

1/2

3.50

3

mm.

 

117.3

15.7

63.5

58.7

42.2

57.2

 

15.7

12.7

88.9

1

in.

1 1/2″

5.00

0.69

2.88

2.56

1.90

2.44

4

0.62

1/2

3.88

4

mm.

 

127.0

17.5

73.2

65.0

48.3

62.0

 

15.7

12.7

98.6

2

in.

2″

6.00

0.75

3.62

3.06

2.38

2.50

4

0.75

5/8

4.75

6

mm.

 

152.4

19.1

91.9

77.7

60.5

63.5

 

19.1

15.9

120.7

3

in.

2 1/2″

7.00

0.88

4.12

3.56

2.88

2.75

4

0.75

5/8

5.50

8

mm.

 

177.8

22.4

104.6

90.4

73.2

69.9

 

19.1

15.9

139.7

4

in.

3″

7.50

0.94

5.00

4.25

3.50

2.75

4

0.75

5/8

6.00

10

mm.

 

190.5

23.9

127.0

108.0

88.9

69.9

 

19.1

15.9

152.4

5

in.

3 1/2″

8.50

0.94

5.50

4.81

4.00

2.81

8

0.75

5/8

7.00

12

mm.

 

215.9

23.9

139.7

122.2

101.6

71.4

 

19.1

15.9

177.8

5

in.

4″

9.00

0.94

6.19

5.31

4.50

3.00

8

0.75

5/8

7.50

15

mm.

 

228.6

23.9

157.2

134.9

114.3

76.2

 

19.1

15.9

190.5

7

in.

5″

10.00

0.94

7.31

6.44

5.56

3.50

8

0.88

3/4

8.50

19

mm.

 

254.0

23.9

185.7

163.6

141.2

88.9

 

22.4

19.1

215.9

9

in.

6″

11.00

1.00

8.50

7.56

6.63

3.50

8

0.88

3/4

9.50

24

mm.

 

279.4

25.4

215.9

192.0

168.4

88.9

 

22.4

19.1

241.3

11

in.

8″

13.50

1.12

10.62

9.69

8.63

4.00

8

0.88

3/4

11.75

39

mm.

 

342.9

28.4

269.7

246.1

219.2

101.6

 

22.4

19.1

298.5

18

in.

10″

16.00

1.19

12.75

12.00

10.75

4.00

12

1.00

7/8

14.25

52

mm.

 

406.4

30.2

323.9

304.8

273.1

101.6

 

25.4

22.2

362.0

24

in.

12″

19.00

1.25

15.00

14.38

12.75

4.50

12

1.00

7/8

17.00

80

mm.

 

482.6

31.8

381.0

365.3

323.9

114.3

 

25.4

22.2

431.8

36

in.

14″

21.00

1.38

16.25

15.75

14.00

5.00

12

1.12

1

18.75

110

mm.

 

533.4

35.1

412.8

400.1

355.6

127.0

 

28.4

25.4

476.3

50

in.

16″

23.50

1.44

18.50

18.00

16.00

5.00

16

1.12

1

21.25

140

mm.

 

596.9

36.6

469.9

457.2

406.4

127.0

 

28.4

25.4

539.8

64

in.

18″

25.00

1.56

21.00

19.88

18.00

5.50

16

1.25

1 1/8

22.75

150

mm.

 

635.0

39.6

533.4

505.0

457.2

139.7

 

31.8

28.6

577.9

68

in.

20R#8243;

27.50

1.69

23.00

22.00

20.00

5.69

20

1.25

1 1/8

25.00

180

mm.

 

698.5

42.9

584.2

558.8

508.0

144.5

 

31.8

28.6

635.0

82

in.

24″

32.00

1.88

27.25

26.12

24.00

6.00

20

1.38

1 1/4

29.50

260

mm.

 

812.8

47.8

692.2

663.4

609.6

152.4

 

35.1

31.8

749.3

118

Dimensions of Weld Neck ASME B16.5 – class 300 Lbs


 

Nominal size

Outside diam. of flange

Thick. of flange

Diam. of raised face

Diam of hub at base

Diam. of hub at point of welding

Length thru hub

No. of holes

Diam. of holes

Diam. of bolts

Diam. of bolt circle

Approx. weight pounds Kg

   

O

C

R

X

A

Y

         

in.

1/2″

3.75

0.56

1.38

1.50

0.84

2.06

4

0.62

1/2

2.62

2

mm.

 

95.3

14.2

35.1

38.1

21.3

52.3

 

15.7

12.7

66.5

1

in.

3/4″

4.62

0.62

1.69

1.88

1.05

2.25

4

0.75

5/8

3.25

3

mm.

 

117.3

15.7

42.9

47.8

26.7

57.2

 

19.1

15.9

82.6

1

in.

1″

4.88

0.69

2.00

2.12

1.32

2.44

4

0.75

5/8

3.50

4

mm.

 

124.0

17.5

50.8

53.8

33.5

62.0

 

19.1

15.9

88.9

2

in.

1 1/4″

5.25

0.75

2.50

2.50

1.66

2.56

4

0.75

5/8

3.88

5

mm.

 

133.4

19.1

63.5

63.5

42.2

65.0

 

19.1

15.9

98.6

2

in.

1 1/2″

6.12

0.81

2.88

2.75

1.90

2.69

4

0.88

3/4

4.50

7

mm.

 

155.4

20.6

73.2

69.9

48.3

68.3

 

22.4

19.1

114.3

3

in.

2″

6.50

0.88

3.62

3.31

2.38

2.75

8

0.75

5/8

5.00

9

mm.

 

165.1

22.4

91.9

84.1

60.5

69.9

 

19.1

15.9

127.0

4

in.

2 1/2″

7.50

1.00

4.12

3.94

2.88

3.00

8

0.88

3/4

5.88

12

mm.

 

190.5

25.4

104.6

100.1

73.2

76.2

 

22.4

19.1

149.4

5

in.

3″

8.25

1.12

5.00

4.62

3.50

3.12

8

0.88

3/4

6.62

15

mm.

 

209.6

28.4

127.0

117.3

88.9

79.2

 

22.4

19.1

168.1

7

in.

3 1/2″

9.00

1.19

5.50

5.25

4.00

3.19

8

0.88

3/4

7.25

18

mm.

 

228.6

30.2

139.7

133.4

101.6

81.0

 

22.4

19.1

184.2

8

in.

4″

10.00

1.25

6.19

5.75

4.50

3.38

8

0.88

3/4

7.88

25

mm.

 

254.0

31.8

157.2

146.1

114.3

85.9

 

22.4

19.1

200.2

11

in.

5″

11.00

1.38

7.31

7.00

5.56

3.88

8

0.88

3/4

9.25

32

mm.

 

279.4

35.1

185.7

177.8

141.2

98.6

 

22.4

19.1

235.0

15

in.

6″

12.50

1.44

8.50

8.12

6.63

3.88

12

0.88

3/4

10.62

42

mm.

 

317.5

36.6

215.9

206.2

168.4

98.6

 

22.4

19.1

269.7

19

in.

8″

15.00

1.62

10.62

10.25

8.63

4.38

12

1.00

7/8

13.00

67

mm.

 

381.0

41.1

269.7

260.4

219.2

111.3

 

25.4

22.2

330.2

30

in.

10″

17.50

1.88

12.75

12.62

10.75

4.62

16

1.12

1

15.25

91

mm.

 

444.5

47.8

323.9

320.5

273.1

117.3

 

28.4

25.4

387.4

41

in.

12″

20.50

2.00

15.00

14.75

12.75

5.12

16

1.25

1 1/8

17.75

140

mm.

 

520.7

50.8

381.0

374.7

323.9

130.0

 

31.8

28.6

450.9

64

in.

14″

23.00

2.12

16.25

16.75

14.00

5.62

20

1.25

1 1/8

20.25

180

mm.

 

584.2

53.8

412.8

425.5

355.6

142.7

 

31.8

28.6

514.4

82

in.

16″

25.50

2.25

18.50

19.00

16.00

5.75

20

1.38

1 1/4

22.50

250

mm.

 

647.7

57.2

469.9

482.6

406.4

146.1

 

35.1

31.8

571.5

113

in.

18″

28.00

2.38

21.00

21.00

18.00

6.25

24

1.38

1 1/4

24.75

320

mm.

 

711.2

60.5

533.4

533.4

457.2

158.8

 

35.1

31.8

628.7

145

in.

20″

30.50

2.50

23.00

23.12

20.00

6.38

24

1.38

1 1/4

27.00

400

mm.

 

774.7

63.5

584.2

587.2

508.0

162.1

 

35.1

31.8

685.8

181

in.

24″

36.00

2.75

27.25

27.62

24.00

6.62

24

1.62

1 1/2

32.00

580

mm.

 

914.4

69.9

692.2

701.5

609.6

168.1

 

41.1

38.1

812.8

263

Dimensions of Weld Neck ASME B16.5 – class 600 Lbs

 

Nominal size

Outside diam. of flange

Thick. of flange

Diam. of raised face

Diam of hub at base

Diam. of hub at point of welding

Length thru hub

No. of holes

Diam. of holes

Diam. of bolts

Diam. of bolt circle

Approx. weight pounds Kg

   

O

C

R

X

A

Y

         

in.

1/2″

3.75

0.56

1.38

1.50

0.84

2.06

4

0.62

1/2

2.62

2

mm.

 

95.3

14.2

35.1

38.1

21.3

52.3

 

15.7

12.7

66.5

1

in.

3/4″

4.62

0.62

1.69

1.88

1.05

2.25

4

0.75

5/8

3.25

4

left.

 

117.3

15.7

42.9

47.8

26.7

57.2

 

19.1

15.9

82.6

2

in.

1″

4.88

0.69

2.00

2.12

1.32

2.44

4

0.75

5/8

3.50

4

mm.

 

124.0

17.5

50.8

53.8

33.5

62.0

 

19.1

15.9

88.9

2

in.

1 1/4″

5.25

0.81

2.50

2.50

1.66

2.62

4

0.75

5/8

3.88

6

mm.

 

133.4

20.6

63.5

63.5

42.2

66.5

 

19.1

15.9

98.6

3

left.

1 1/2″

6.12

0.88

2.88

2.75

1.90

2.75

4

0.88

3/4

4.50

8

left.

 

155.4

22.4

73.2

69.9

48.3

69.9

 

22.4

19.1

114.3

4

in.

2″

6.50

1.00

3.62

3.31

2.38

2.88

8

0.75

5/8

5.00

12

mm.

 

165.1

25.4

91.9

84.1

60.5

73.2

 

19.1

15.9

127.0

5

in.

2 1/2″

7.50

1.12

4.12

3.94

2.88

3.12

8

0.88

3/4

5.88

18

mm.

 

190.5

28.4

104.6

100.1

73.2

79.2

 

22.4

19.1

149.4

8

left.

3″

8.25

1.25

5.00

4.62

3.50

3.25

8

0.88

3/4

6.62

23

left.

 

209.6

31.8

127.0

117.3

88.9

82.6

 

22.4

19.1

168.1

10

in.

3 1/2″

9.00

1.38

5.50

5.25

4.00

3.38

8

1.00

7/8

7.25

26

mm.

 

228.6

35.1

139.7

133.4

101.6

85.9

 

25.4

22.2

184.2

12

in.

4″

10.75

1.50

6.19

6.00

4.50

4.00

8

1.00

7/8

8.50

42

mm.

 

273.1

38.1

157.2

152.4

114.3

101.6

 

25.4

22.2

215.9

19

left.

5″

13.00

1.75

7.31

7.44

5.56

4.50

8

1.12

1

10.50

68

left.

 

330.2

44.5

185.7

189.0

141.2

114.3

 

28.4

25.4

266.7

31

in.

6″

14.00

1.88

8.50

8.75

6.63

4.62

12

1.12

1

11.50

81

mm.

 

355.6

47.8

215.9

222.3

168.4

117.3

 

28.4

25.4

292.1

37

in.

8″

16.50

2.19

10.62

10.75

8.63

5.25

12

1.25

1 1/8

13.75

120

mm.

 

419.1

55.6

269.7

273.1

219.2

133.4

 

31.8

28.6

349.3

54

left.

10″

20.00

2.50

12.75

13.50

10.75

6.00

16

1.38

1 1/4

17.00

190

left.

 

508.0

63.5

323.9

342.9

273.1

152.4

 

35.1

31.8

431.8

86

in.

12″

22.00

2.62

15.00

15.75

12.75

6.12

20

1.38

1 1/4

19.25

225

mm.

 

558.8

66.5

381.0

400.1

323.9

155.4

 

35.1

31.8

489.0

102

in.

14″

23.75

2.75

16.25

17.00

14.00

6.50

20

1.50

1 3/8

20.75

280

mm.

 

603.3

69.9

412.8

431.8

355.6

165.1

 

38.1

34.9

527.1

127

left.

16″#8243;

27.00

3.00

18.50

19.50

16.00

7.00

20

1.62

1 1/2

23.75

390

left.

 

685.8

76.2

469.9

495.3

406.4

177.8

 

41.1

38.1

603.3

177

in.

18″

29.25

3.25

21.00

21.50

18.00

7.25

20

1.75

1 5/8

25.75

475

mm.

 

743.0

82.6

533.4

546.1

457.2

184.2

 

44.5

41.3

654.1

215

in.

20″

32.00

3.50

23.00

24.00

20.00

7.50

24

1.75

1 5/8

28.50

590

mm.

 

812.8

88.9

584.2

609.6

508.0

190.5

 

44.5

41.3

723.9

268

in.

24″

37.00

4.00

27.25

28.25

24.00

8.00

24

2.00

1 7/8

33.00

830

left.

 

939.8

101.6

692.2

717.6

609.6

203.2

 

50.8

47.6

838.2

376

Dimensions of Weld Neck ASME B16.5 – class 900 Lbs

  Nominal size Outside diam. of flange Thick. of flange Diam. of raised face Diam of hub at base Diam. of hub at point of welding Length thru hub No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight pounds Kg
    O C R X A Y          
in.

1/2″

Sizes 1/2″ thru 2 1/2″ are identical to Class 1500.

mm.  
in.

3/4″

mm.  
in.

1″

mm.  
in.

1 1/4″

mm.  
in.

1 1/2″

mm.  
in.

2″

mm.  
in.

2 1/2″

mm.  
in.

3″

9.50

1.50

5.00

5.00

3.50

4.00

8

1.00

7/8

7.50

31

mm.  

241.3

38.1

127.0

127.0

88.9

101.6

 

25.4

22.2

190.5

14

in.

4″

11.50

1.75

6.19

6.25

4.50

4.50

8

1.25

1 1/8

9.25

53

mm.  

292.1

44.5

157.2

158.8

114.3

114.3

 

31.8

28.6

235.0

24

in.

5″

13.75

2.00

7.31

7.50

5.56

5.00

8

1.38

1 1/4

11.00

86

mm.  

349.3

50.8

185.7

190.5

141.2

127.0

 

35.1

31.8

279.4

39

in.

6″

15.00

2.19

8.50

9.25

6.63

5.50

12

1.25

1 1/8

12.50

110

mm.  

381.0

55.6

215.9

235.0

168.4

139.7

 

31.8

28.6

317.5

50

in.

8″

18.50

2.50

10.62

11.75

8.63

6.38

12

1.50

1 3/8

15.50

175

mm.  

469.9

63.5

269.7

298.5

219.2

162.1

 

38.1

34.9

393.7

79

in.

10″

21.50

2.75

12.75

14.50

10.75

7.25

16

1.50

1 3/8

18.50

260

mm.  

546.1

69.9

323.9

368.3

273.1

184.2

 

38.1

34.9

469.9

118

in.

12″

24.00

3.12

15.00

16.50

12.75

7.88

20

1.50

1 3/8

21.00

325

mm.  

609.6

79.2

381.0

419.1

323.9

200.2

 

38.1

34.9

533.4

147

in.

14″

25.25

3.38

16.25

17.75

14.00

8.38

20

1.62

1 1/2

22.00

400

mm.  

641.4

85.9

412.8

450.9

355.6

212.9

 

41.1

38.1

558.8

181

in.

16″

27.75

3.50

18.50

20.00

16.00

8.50

20

1.75

1 5/8

24.25

495

mm.  

704.9

88.9

469.9

508.0

406.4

215.9

 

44.5

41.3

616.0

225

in.

18″

31.00

4.00

21.00

22.25

18.00

9.00

20

2.00

1 7/8

27.00

680

mm.  

787.4

101.6

533.4

565.2

457.2

228.6

 

50.8

47.6

685.8

308

in.

20″

33.75

4.25

23.00

24.50

20.00

9.75

20

2.12

2

29.50

830

mm.  

857.3

108.0

584.2

622.3

508.0

247.7

 

53.8

50.8

749.3

376

in.

24″

41.00

5.50

27.25

29.50

24.00

11.50

20

2.62

2 1/2

35.50

1500

mm.  

1041.4

139.7

692.2

749.3

609.6

292.1

 

66.5

63.5

901.7

680

Dimensions of Weld Neck ASME B16.5 – class 1500 Lbs

  Nominal size Outside diam. of flange Thick. of flange Diam. of raised face Diam of hub at base Diam. of hub at point of welding Length thru hub No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight pounds Kg
  O C R X A Y            
in. 1/2″ 4.75 0.88 1.38 1.50 0.84 2.38 4 0.88 3/4 3.25 5
mm.   120.7 22.4 35.1 38.1 21.3 60.5   22.4 19.1 82.6 2
in. 3/4″ 5.12 1.00 1.69 1.75 1.05 2.75 4 0.88 3/4 3.50 6
mm.   130.0 25.4 42.9 44.5 26.7 69.9   22.4 19.1 88.9 3
in. 1″ 5.88 1.12 2.00 2.06 1.32 2.88 4 1.00 7/8 4.00 9
mm.   149.4 28.4 50.8 52.3 33.5 73.2   25.4 22.2 101.6 4
in. 1 1/4″ 6.25 1.12 2.50 2.50 1.66 2.88 4 1.00 7/8 4.38 10
mm.   158.8 28.4 63.5 63.5 42.2 73.2   25.4 22.2 111.3 5
in. 1 1/2″ 7.00 1.25 2.88 2.75 1.90 3.25 4 1.12 1 4.88 13
mm.   177.8 31.8 73.2 69.9 48.3 82.6   28.4 25.4 124.0 6
in. 2″ 8.50 1.50 3.62 4.12 2.38 4.00 8 1.00 7/8 6.50 25
mm.   215.9 38.1 91.9 104.6 60.5 101.6   25.4 22.2 165.1 11
in. 2 1/2″ 9.62 1.62 4.12 4.88 2.88 4.12 8 1.12 1 7.50 36
mm.   244.3 41.1 104.6 124.0 73.2 104.6   28.4 25.4 190.5 16
in. 3″ 10.50 1.88 5.00 5.25 3.50 4.62 8 1.25 1 1/8 8.00 48
mm.   266.7 47.8 127.0 133.4 88.9 117.3   31.8 28.6 203.2 22
in. 4″ 12.25 2.12 6.19 6.38 4.50 4.88 8 1.38 1 1/4 9.50 73
mm.   311.2 53.8 157.2 162.1 114.3 124.0   35.1 31.8 241.3 33
in. 5″ 14.75 2.88 7.31 7.75 5.56 6.12 8 1.62 1 1/2 11.50 130
mm.   374.7 73.2 185.7 196.9 141.2 155.4   41.1 38.1 292.1 59
in. 6″ 15.50 3.25 8.50 9.00 6.63 6.75 12 1.50 1 3/8 12.50 165
mm.   393.7 82.6 215.9 228.6 168.4 171.5   38.1 34.9 317.5 75
in. 8″ 19.00 3.62 10.62 11.50 8.63 8.38 12 1.75 1 5/8 15.50 275
mm.   482.6 91.9 269.7 292.1 219.2 212.9   44.5 41.3 393.7 125
in. 10″ 23.00 4.25 12.75 14.50 10.75 10.00 12 2.00 1 7/8 19.00 455
mm.   584.2 108.0 323.9 368.3 273.1 254.0   50.8 47.6 482.6 206
in. 12″ 26.50 4.88 15.00 17.75 12.75 11.12 16 2.12 2 22.50 690
mm.   673.1 124.0 381.0 450.9 323.9 282.4   53.8 50.8 571.5 313
in. 14″ 29.50 5.25 16.25 19.50 14.00 11.75 16 2.38 2 1/4 25.00 940
mm.   749.3 133.4 412.8 495.3 355.6 298.5   60.5 57.2 635.0 426
in. 16″ 32.50 5.75 18.50 21.75 16.00 12.25 16 2.62 2 1/2 27.75 1250
mm.   825.5 146.1 469.9 552.5 406.4 311.2   66.5 63.5 704.9 567
in. 18″ 36.00 6.38 21.00 23.50 18.00 12.88 16 2.88 2 3/4 30.50 1625
mm.   914.4 162.1 533.4 596.9 457.2 327.2   73.2 69.9 774.7 737
in. 20″ 38.75 7.00 23.00 25.25 20.00 14.00 16 3.12 3 32.75 2050
mm.   984.3 177.8 584.2 641.4 508.0 355.6   79.2 76.2 831.9 930
in. 24″ 46.00 8.00 27.25 30.00 24.00 16.00 16 3.62 3 1/2 39.00 3325
mm.   1168.4 203.2 692.2 762.0 609.6 406.4   91.9 88.9 990.6 1508

 

Dimensions of Weld Neck ASME B16.5 – class 2500 Lbs


 

Nominal size

Outside diam. of flange

Thick. of flange

Diam. of raised face

Diam of hub at base

Diam. of hub at point of welding

Length thru hub

No. of holes

Diam. of holes

Diam. of bolts

Diam. of bolt circle

Approx. weight pounds Kg

   

O

C

R

X

A

Y

         

in.

1/2″

5.25

1.19

1.38

1.69

0.84

2.88

4

0.88

3/4

3.50

7

mm.

 

133.4

30.2

35.1

42.9

21.3

73.2

 

22.4

19.1

88.9

3

in.

3/4″

5.50

1.25

1.69

2.00

1.05

3.12

4

0.88

3/4

3.75

8

mm.

 

139.7

31.8

42.9

50.8

26.7

79.2

 

22.4

19.1

95.3

4

in.

1″

6.25

1.38

2.00

2.25

1.32

3.50

4

1.00

7/8

4.25

12

mm.

 

158.8

35.1

50.8

57.2

33.5

88.9

 

25.4

22.2

108.0

5

in.

1 1/4″

7.25

1.50

2.50

2.88

1.66

3.75

4

1.12

right

5.12

17

mm.

 

184.2

38.1

63.5

73.2

42.2

95.3

 

28.4

25.4

130.0

8

in.

1 1/2″

8.00

1.75

2.88

3.12

1.90

4.38

4

1.25

1 1/8

5.75

25

mm.

 

203.2

44.5

73.2

79.2

48.3

111.3

 

31.8

28.6

146.1

11

in.

2″

9.25

2.00

3.62

3.75

2.38

5.00

8

1.12

right

6.75

42

mm.

 

235.0

50.8

91.9

95.3

60.5

127.0

 

28.4

25.4

171.5

19

in.

2 1/2″

10.50

2.25

4.12

4.50

2.88

5.62

8

1.25

1 1/8

7.75

52

mm.

 

266.7

57.2

104.6

114.3

73.2

142.7

 

31.8

28.6

196.9

24

in.

3″

12.00

2.62

5.00

5.25

3.50

6.62

8

1.38

1 1/4

9.00

94

mm.

 

304.8

66.5

127.0

133.4

88.9

168.1

 

35.1

31.8

228.6

43

in.

4″

14.00

3.00

6.19

6.50

4.50

7.50

8

1.62

1 1/2

10.75

145

mm.

 

355.6

76.2

157.2

165.1

114.3

190.5

 

41.1

38.1

273.1

66

in.

5″

16.50

3.62

7.31

8.00

5.56

9.00

8

1.88

1 3/4

12.75

245

mm.

 

419.1

91.9

185.7

203.2

141.2

228.6

 

47.8

44.5

323.9

111

in.

6″

19.00

4.25

8.50

9.25

6.63

10.75

8

2.12

right

14.50

380

mm.

 

482.6

108.0

215.9

235.0

168.4

273.1

 

53.8

50.8

368.3

172

in.

8″

21.75

5.00

10.62

12.00

8.63

12.50

12

2.12

right

17.25

580

mm.

 

552.5

127.0

269.7

304.8

219.2

317.5

 

53.8

50.8

438.2

263

in.

10″

26.50

6.50

12.75

14.75

10.75

16.50

12

2.62

2 1/2

21.25

1075

mm.

 

673.1

165.1

323.9

374.7

273.1

419.1

 

66.5

63.5

539.8

488

in.

12″

30.00

7.25

15.00

17.38

12.75

18.25

12

2.88

2 3/4

24.38

1525

mm.

 

762.0

184.2

381.0

441.5

323.9

463.6

 

73.2

69.9

619.3

692