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METAL-KOREA

82

83

GENERAL SPECIFICATIONS

AWWA FLANGES

AWWA C207 FLANGES

Grneral Specifications

1. Standard Finishes for Contact Face of AWWA Flange

Class B & D Flanges Table 2 Class D Flanges Table 3 Class E Flanges Table 4

Flanges of all classes shall be flat faced-that is, without projection or raised face. The dimensions given for thickness are minimum. the flanges shall be faced smooth or may have a serrated finish of approximately 32 serrations per inch, approximately 1/64 in. deep. Serrations may be either spiral or concentric.

2. Dimensional Tolerances for AWWA Flanges Dimension

Tolerance in

Bore

+1/16 -0

Outside diameter

±1/8

Thickness

18 in and smaller

+1/8 -0

20 in and smaller

+3/16 -0

Length through Hub

+3/16 -1/16

Bolt Circle Diameter

±1/16

Note; For other dimensional tolerances, see ANSI B16.5, page 49.

3. Bolting Bolts and nuts shall be carbon steel ASTM A307, Grades A or B. Bolts shall have regular unfinished square or hexagonal heads, and nuts shall have regular square or hexagonal dimensions all in accordance with ANSI B 18.21 for wrench head bolts and nuts and wrench openings. All bolts and nuts shall be threaded in accordance with ANSI B1.1 for screw threads, coares-thread series, Class 2A and 2B fit.

M

E

T

A

L

-

K

O

R

E

A

F

L

A

N

G

E

S

4. Gaskets These standards are predicated on the user of either a cloth-inserted rubber gasket 1/16 in. thick or an absestos ring gasket that is either 1/16 in. or 1/8 in. thick, at the purchaser's option; The gasket shall extend from the inside diameter or the flange to at least the inside edge of the bolt holes, or it may.

84

METAL-KOREA

METAL-KOREA

CLASS B & D FLANGES TABLE 2

85

CLASS B & D FLANGES TABLE 3

AWWA Standard Steel Ring Flanges, Class B (86 psi)and Class D (175-150 psi)

SLIP-ON

BLIND

SLIP-ON

AWWA C207 Nominal Pipe

Unit:mm DRILLING

Outside

Bore

Thickness

Bolt Circle Diam.

Diam.

Size

4 5 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60 66 72 78 84 90 96 102 108 114 120

D

B

Class B(t)

Class D(t)

C

9 10 11 131/2 16 19 21 231/2 25 271/2 291/2 32 341/4 361/2 383/4 413/4 433/4 46 483/4 503/4 53 551/4 571/4 591/2 613/4 64 661/4 73 80 861/2 93 993/4 1061/2 1131/4 120 1263/4 1331/2 1401/4

4.57 5.66 6.72 8.72 10.88 12.88 14.19 16.19 18.18 20.19 22.19 24.19 26.19 28.19 30.19 32.19 34.19 36.19 38.19 40.19 42.19 44.19 46.19 48.19 50.19 52.19 54.19 60.19 66.19 72.19 78.19 84.19 90.19 96.19 102.19 108.19 114.19 120.19

5/8

5/8

5/8

5/8

11/16

11/16

11/16 11/16 11/16 11/16 11/16 11/16 11/16

11/16 11/16 13/16

71/2 81/2 91/2 113/4 141/4 17 183/4 211/4 223/4 25 271/4 291/2 313/4 34 36 381/2 401/2 423/4 451/4 471/4 491/2 513/4 533/4 56 581/4 601/2 623/4 691/4 76 821/2 89 951/2 102 1081/2 1141/2 1203/4 1263/4 1323/4

3/4 3/4

13/16 7/8 7/8

15/16 15/16 1 1 1 11/8 11/8 11/8 11/4 11/4 11/4 13/8 11/2 15/8 13/4 2 2 21/4 21/4 21/2 21/2 23/4 23/4

15/16

1 11/16 11/8 13/16 11/4 15/16 15/16 13/8 11/2 11/2 15/8 15/8 15/8 13/4 13/4 13/4 13/4 2 2 21/6 21/4 21/2 25/8 23/4 23/4 3 3 31/4 31/4 31/2 31/2

Diam. of Bolt Holes

Number of Holes

8 8 8 8 12 12 12 16 16 20 20 20 24 28 28 28 32 32 32 36 36 40 40 44 44 44 44 52 52 60 64 64 68 68 72 72 76 76

Class D

3/4

3/4

3/4

7/8

3/4

7/8

3/4

7/8

3/4

1 1

7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8

1 1 1 1 1 1 11/8 11/8 11/8 11/8 11/4 11/4 13/4 13/8 13/8 13/8 15/8 15/8 17/8 17/8 21/8 21/8 23/8 23/8

Nominal

Outside

Pipe

Diam.

Bore

Thickness

11/8 11/8 11/4 11/4 13/6 13/8 13/8 13/8 13/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 17/8 17/9 17/8 17/8 17/8 17/8 21/8 21/8 23/8 23/8 25/8 25/8 27/8 27/8

4 5 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60 66 72 78 84 90 96 102 108 114 120

D

B

9 10 11 131/2 16 19 21 231/2 25 271/2 291/2 32 341/4 361/2 383/4 413/4 433/4 46 483/4 503/4 53 551/4 571/4 591/2 613/4 64 661/4 73 80 861/2 93 993/4 1061/2 1131/4 120 1263/4 1331/2 1401/4

4.57 5.66 6.72 8.72 10.88 12.88 14.19 16.19 18.18 20.19 22.19 24.19 26.19 28.19 30.19 32.19 34.19 36.19 38.19 40.19 42.19 44.19 46.19 48.19 50.19 52.19 54.19 60.19 66.19 72.19 78.19 84.19 90.19 96.19 102.19 108.19 114.19 120.19

DRILLING

Length Through Hub

Diam. of Hub at Base

T

X

C

1/2

7/8

9/16

11/4 11/4 11/4 11/4 11/4 11/4 11/4 11/4 11/4 13/4 13/4 13/4 13/4 13/4 13/4 13/4 13/4 13/4 13/4 13/4 21/4 21/4 21/2 21/2 21/2 21/2 23/4 23/4 23/4 3 3 31/4 31/4 31/2 31/2 33/4 33/4

55/16 65/16 79/16 911/16 12 143/8 153/4 18 197/8 22 241/4 261/8 281/2 301/2 321/2 343/4 363/4 383/4 403/4 43 45 47 49 51 53 55 57 63 69 75 811/4 871/2 933/4 100 1053/4 1111/2 1173/4 124

71/2 81/2 91/2 113/4 141/4 17 183/4 211/4 223/4 25 271/4 291/2 314/3 34 36 382/1 402/1 423/4 451/4 471/4 492/1 513/4 533/4 56 581/4 601/2 623/4 691/4 76 821/2 89 951/2 102 1081/2 1141/2 1203/4 1263/4 1323/4

Size

Class B

3/4

Unit:mm

t

9/16 9/16

11/16 11/16 3/4 3/4 3/4 3/4

1 1 1 1 1 11/8 11/8 11/8 11/8 11/8 11/4 11/4 11/4 13/8 13/8 13/8 13/8 11/2 11/2 11/2 13/4 13/4 2 2 21/4 21/4 21/2 21/2

Bolt Circle Diam.

Diam. of Bolt Holes

Number of Holes

8 8 8 8 12 12 12 16 16 20 20 20 24 28 28 28 32 32 32 36 36 40 40 44 44 44 44 52 52 60 64 64 68 72 72 72 76 76

Class B

Class D

3/4

3/4

3/4

7/8

3/4

7/8

3/4

7/8

3/4

1 1

3/4 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8

1 1 1 1 1 1 11/8 11/8 11/8 11/8 11/4 11/4 13/8 13/8 13/8 13/8 15/8 15/8 17/8 21/8 21/8 21/8 23/8 23/8

11/8 11/8 11/4 11/4 13/8 13/8 13/8 13/8 13/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 17/8 17/8 17/8 17/8 17/8 17/8 21/8 21/8 23/8 25/8 25/8 25/8 27/8 27/8

Notes:

Notes:

(1) The 'Bore' (B) shall be 3/16 in. larger than the nominal outside diameter of the pipe, unless otherwise specified.

(1) For standard finishes for contact face, refer to apge 48. (2) For Slip-on Flanges, (Hub Type Flanges), the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees. (3) The 'Bore' (B) shall be 3/16 in. larger than the nominal outside diameter of the pipe, unless otherwise specified.

86

METAL-KOREA

CLASS E FLANGES TABLE 4 AWWA Standard Steel Hub Flanges, Class E (275 psi)

SLIP-ON

AWWA C207 Nominal

Outside

Pipe

Diam.

Unit:mm Bore

Thickness

Size

4 5 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60 66 72 78 84 90 96 102 108 114 120

Length Through Hub

Diam. of Hub at Base

DRILLING Bolt Circle Diam.

D

B

t

T

X

C

9 10 11 131/2 16 19 21 231/2 25 271/2 291/2 32 341/4 361/2 383/4 413/4 433/4 46 483/4 503/4 53 551/4 571/4 591/2 613/4 64 661/4 73 80 861/2 93 993/4 1061/2 1131/4 120 1263/4 1331/2 1401/4

4.57 5.66 6.72 8.72 10.88 12.88 14.19 16.19 18.18 20.19 22.19 24.19 26.19 28.19 30.19 32.19 34.19 36.19 38.19 40.19 42.19 44.19 46.19 48.19 50.19 52.19 54.19 60.19 66.19 72.19 78.19 84.19 90.19 96.19 102.19 108.19 114.19 120.19

15/16

15/16 17/16 19/16 13/4 115/16 23/16 21/4 21/2 211/16 27/8 31/8 31/4 33/8 37/16 31/2 35/8 311/16 33/4 33/4 37/8 4 4 41/16 41/8 41/8 41/4 43/8 41/2 47/8 5 53/8 53/8 53/4 53/4 61/8 61/8 61/4 61/2

55/16 67/16 79/16 911/16 12 143/8 153/4 18 197/8 22 24 261/8 281/2 303/4 323/4 35 37 391/4 413/4 433/4 46 48 50 521/4 541/4 561/2 583/4 651/4 711/2 781/2 841/2 901/2 963/4 1023/4 1083/4 1141/2 1211/4 128

71/2 81/2 91/2 113/4 141/4 17 183/4 211/4 223/4 25 271/4 291/2 314/3 34 36 381/2 401/2 423/4 451/4 471/4 491/2 513/4 533/4 56 581/4 601/2 623/4 691/4 76 831/2 89 951/2 102 1081/2 1141/2 1203/4 1263/4 1323/4

15/16

1 11/8 15/16 11/4 13/8 17/16 19/16 111/16 113/16 17/8 2 21/16 21/8 21/4 25/16 23/8 23/8 21/2 25/8 25/8 211/16 23/4 23/4 27/8 3 31/8 33/8 31/2 37/8 37/8 41/4 41/4 45/8 45/8 5 5

Notes: (1) The 'Bore' (B) shall be 3/16 in. larger than the nominal outside diameter of the pipe, unless otherwise specified.

Number of Holes

Diam. of Bolt Holes

8 8 8 8 12 12 12 16 16 20 20 20 24 28 28 28 32 32 32 36 36 40 40 44 44 44 44 52 52 60 64 64 68 68 72 72 76 76

3/4 7/8 7/8 7/8

1 1 11/8 11/8 11/4 11/4 13/8 13/8 13/8 13/8 13/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 15/8 17/8 17/8 17/8 17/8 17/8 17/8 21/8 21/8 23/8 23/8 25/8 25/8 27/8 27/8