Product

FLANGE

Size range

1/2" to 80"  DN15 to DN2000

Design

Wedding neck flange, slip-one flange, socket welding flange, loose flange, plate flange, blind flange, threaded flange , lap-joint flange，etc.

Pressure

PN6, PN10, PN16, PN25, PN40, PN64, PN100, 150#, 300#, 600#,900#,1500#, 2500#

Wall thickness for welding neck flange, STD, SCH40, SCH80, SCH160. SCHXXS

 Material

 Carbon Steel Flange, Alloy Steel Flange, Stainless Steel Flange

Package

Sea worthy plywooden case, wooden pallet

Nominal Pipe Size
NPS
(inches)

Class 150

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/4

3-3/8

4

1/2

0.62

2-1/4

1/2

3-1/2

4

1/2

0.62

2-3/8

3/4

3-7/8

4

1/2

0.62

2-3/4

1

4-1/4

4

1/2

0.62

3-1/8

1-1/4

4-5/8

4

1/2

0.62

3-1/2

1-1/2

5

4

1/2

0.62

3-7/8

2

6

4

5/8

0.75

4-3/4

2-1/2

7

4

5/8

0.75

5-1/2

3

7-1/2

4

5/8

0.75

6

3-1/2

8-1/2

8

5/8

0.75

7

4

9

8

5/8

0.75

7-1/2

5

10

8

3/4

0.88

8-1/2

6

11

8

3/4

0.88

9-1/2

8

13-1/2

8

3/4

0.88

11-3/4

10

16

12

7/8

1

14-1/4

12

19

12

7/8

1

17

14

21

12

1

1.12

18-3/4

16

23-1/2

16

1

1.12

21-1/4

18

25

16

1-1/8

1.25

22-3/4

20

27-1/2

20

1-1/8

1.25

25

24

32

20

1-1/4

1.38

29-1/2

Nominal Pipe Size
NPS
(inches)

Class 300

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/4

3-3/8

4

1/2

0.62

2-1/4

1/2

3-3/4

4

1/2

0.62

2-5/8

3/4

4-5/8

4

5/8

0.75

3-1/4

1

4-7/8

4

5/8

0.75

3-1/2

1-1/4

5-1/4

4

5/8

0.75

3-7/8

1-1/2

6-1/8

4

3/4

0.88

4-1/2

2

6-1/2

8

5/8

0.75

5

2-1/2

7-1/2

8

3/4

0.88

5-7/8

3

8-1/4

8

3/4

0.88

6-5/8

3-1/2

9

8

3/4

0.88

7-1/4

4

10

8

3/4

0.88

7-7/8

5

11

8

3/4

0.88

9-1/4

6

12-1/2

12

3/4

0.88

10-5/8

8

15

12

7/8

1

13

10

17-1/2

16

1

1.12

15-1/4

12

20-1/2

16

1-1/8

1.25

17-3/4

14

23

20

1-1/8

1.25

20-1/4

16

25-1/2

20

1-1/4

1.38

22-1/2

18

28

24

1-1/4

1.38

24-3/4

20

30-1/2

24

1-1/4

1.38

27

24

36

24

1-1/2

1.62

32

Nominal Pipe Size
NPS
(inches)

Class 400

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/4

3-3/8

4

1/2

0.62

2-1/4

1/2

3-3/4

4

1/2

0.62

2-5/8

3/4

4-5/8

4

5/8

0.75

3-1/4

1

4-7/8

4

5/8

0.75

3-1/2

1-1/4

5-1/4

4

5/8

0.75

3-7/8

1-1/2

6-1/8

4

3/4

0.88

4-1/2

2

6-1/2

8

5/8

0.75

5

2-1/2

7-1/2

8

3/4

0.88

5-7/8

3

8-1/4

8

3/4

0.88

6-5/8

3-1/2

9

8

7/8

1

7-1/4

4

10

8

7/8

1

7-7/8

5

11

8

7/8

1

9-1/4

6

12-1/2

12

7/8

1

10-5/8

8

15

12

1

1.12

13

10

17-1/2

16

1-1/8

1.25

15-1/4

12

20-1/2

16

1-1/4

1.38

17-3/4

14

23

20

1-1/4

1.38

20-1/4

16

25-1/2

20

1-3/8

1.5

22-1/2

18

28

24

1-3/8

1.5

24-3/4

20

30-1/2

24

1-1/2

1.62

27

24

36

24

1-3/4

1.88

32

Nominal Pipe Size
NPS
(inches)

Class 600

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/4

3-3/8

4

1/2

0.62

2-1/4

1/2

3-3/4

4

1/2

0.62

2-5/8

3/4

4-5/8

4

5/8

0.75

3-1/4

1

4-7/8

4

5/8

0.75

3-1/2

1-1/4

5-1/4

4

5/8

0.75

3-7/8

1-1/2

6-1/8

4

3/4

0.88

4-1/2

2

6-1/2

8

5/8

0.75

5

2-1/2

7-1/2

8

3/4

0.88

5-7/8

3

8-1/4

8

3/4

0.88

6-5/8

3-1/2

9

8

7/8

1

7-1/4

4

10-3/4

8

7/8

1

8-1/2

5

13

8

1

1.12

10-1/2

6

14

12

1

1.12

11-1/2

8

16-1/2

12

1-1/8

1.25

13-3/4

10

20

16

1-1/4

1.38

17

12

22

20

1-1/4

1.38

19-1/4

14

23-3/4

20

1-3/8

1.5

20-3/4

16

27

20

1-1/2

1.62

23-3/4

18

29-1/4

20

1-5/8

1.75

25-3/4

20

32

24

1-5/8

1.75

28-1/2

24

37

24

1-7/8

2

33

Nominal Pipe Size
NPS
(inches)

Class 900

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/2

4-3/4

4

3/4

0.88

3-1/4

3/4

5-1/8

4

3/4

0.88

3-1/2

1

5-7/8

4

7/8

1

4

1-1/4

6-1/4

4

7/8

1

4-3/8

1-1/2

7

4

1

1.12

4-7/8

2

8-1/2

8

7/8

1

6-1/2

2-1/2

9-5/8

8

1

1.12

7-1/2

3

9-1/2

8

7/8

1

7-1/2

4

11-1/2

8

1-1/8

1.25

9-1/4

5

13-3/4

8

1-1/4

1.38

11

6

15

12

1-1/8

1.25

12-1/2

8

18-1/2

12

1-3/8

1.5

15-1/2

10

21-1/2

16

1-3/8

1.5

18-1/2

12

24

20

1-3/8

1.5

21

14

25-1/4

20

1-1/2

1.62

22

16

27-3/4

20

1-5/8

1.75

24-1/2

18

31

20

1-7/8

2

27

20

33-3/4

20

2

2.12

29-1/2

24

41

20

2-1/2

2.62

35-1/2

Nominal Pipe Size
NPS
(inches)

Class 1500

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/2

4-3/4

4

3/4

0.88

3-1/4

3/4

5-1/8

4

3/4

0.88

3-1/2

1

5-7/8

4

7/8

1

4

1-1/4

6-1/4

4

7/8

1

4-3/8

1-1/2

7

4

1

1.12

4-7/8

2

8-1/2

8

7/8

1

6-1/2

2-1/2

9-5/8

8

1

1.12

7-1/2

3

10-1/2

8

1-1/8

1.25

8

4

12-1/4

8

1-1/4

1.38

9-1/2

5

14-3/4

8

1-1/2

1.62

11-1/2

6

15-1/2

12

1-3/8

1.5

12-1/2

8

19

12

1-5/8

1.75

15-1/2

10

23

12

1-7/8

2

19

12

26-1/2

16

2

2.12

22-1/2

14

29-1/2

16

2-1/4

2.38

25

16

32-1/2

16

2-1/2

2.62

27-3/4

18

36

16

2-3/4

2.88

30-1/2

20

38-3/4

16

3

3.12

32-3/4

24

46

16

3-1/2

3.62

39

Nominal Pipe Size
NPS
(inches)

Class 2500

Diameter of
Flange
(inches)

No.
of
Bolts

Diameter of
Bolts
(inches)

Diameter of
Bolt Holes
(inches)

Bolt
Circle
(inches)

1/2

5-1/4

4

3/4

0.88

3-1/2

3/4

5-1/2

4

3/4

0.88

3-3/4

1

6-1/4

4

7/8

1

4-1/4

1-1/4

7-1/4

4

1

1.12

5-1/8

1-1/2

8

4

1-1/8

1.25

5-3/4

2

9-1/4

8

1

1.12

6-3/4

2-1/2

10-1/2

8

1-1/8

1.25

7-3/4

3

12

8

1-1/4

1.38

9

4

14

8

1-1/2

1.62

10-3/4

5

16-1/2

8

1-3/4

1.88

12-3/4

6

19

8

2

2.12

14-1/2

8

21-3/4

12

2

2.12

17-1/4

10

26-1/2

12

2-1/2

2.62

21-1/4

12

30

12

2-3/4

2.88

24-3/8