AWWA Flanges Suppliers in India | Flange Price in India | Dimensions Sizes, weights, astm specification, pressure ratings, Weight Calculator
AWWA Flanges Suppliers in India | AWWA Flanges Manufacturer in India | AWWA Flanges Price in India | AWWA Flanges dimensions

AWWA Flanges Suppliers in India

AWWA Flanges Suppliers in India | AWWA Flanges Manufacturer in India | AWWA Flanges Price in India | AWWA Flanges dimensions | Sizes, Flanges weights, Flange astm specification, Flange pressure ratings, Weight Calculator

Manufacturer & Exporters of AWWA Flanges At Best Price. Buy Now !, Exporters & Supplier of Superior Quality AWWA Flanges In Mumbai India, AWWA Flanges Available Sizes | AWWA Flanges Price in India


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Shree Steel India is an international supplier of AWWA Flanges.The AWWA Flanges manufactured in Stainless Steel and Duplex steel, we also manufacture AWWA Flanges at our other factory in Vapi, Gujarat. Where we also manufacture AWWA Flanges and Stainless steel Welding Neck Flange, Slipon Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange for industries like Oil & Gas, Petrochemicals, Refineries, Thermal, Nuclear sector, Solar Power Plants, Atomic Energy, Defense and Aerospace etc.

Shree Steel India manufacture and supply a comprehensive range of AWWA Flanges. Our Gujarat Division provide total Piping Solutions for various projects in India & overseas so far we have supplied AWWA Flanges to more than 30 countries like UK, Ireland, Vietnam, Philippines, South Africa, Australia, Kenya, Nigeria, Iran, Russia, Japan, Canada and many more European & African Countries , We have wide range of manufacturing capabilities and due to our proven track record & only 1% rejection rate became Shree Steel India an ideal choice for major EPC Contractors across the global for their Steel Fittings & Flange requirements.

If you don’t see what you’re looking for just call one of our team members at +91-22-66363077 / 9769756468 or Mail Us : info@shreesteelindia.com . No inquiry is too large or too small, we specialize in locating hard to find items. If you do see what you are looking, we would love to assist you and give you a quote today!

American Waterworks (AWWA) C207 and C228 Pipe Flanges

AWWA History

The American Water Works Association was founded on March 29th 1881 by a group of men representing water utilities in Illinois, Indiana, Iowa, Kansas, Kentucky and Tennessee. They worked together to identify uniform requirements for waterworks systems. The original ANSI/AWWA C207 steel pipe flange specification was officially adopted in 1955.

The AWWA C207 specification covers carbone steel ring type slip on flanges and blind flanges.

General Information about AWWA Flanges

AWWA flanges are commonly used in waterworks, wastewater, slurry, plant piping or other light duty applications generally requiring pressures of less than 300 psi. Pressure ratings for AWWA flanges range from the Class B flange rated at 86 psi to Class F flanges, both rated at 300 psi. Class D flanges are by far the most commonly specified among AWWA flange users, and carry a pressure rating of 175 psi for sizes below 12", and 150 psi for sizes 12" and larger.

The use of AWWA ring type steel flange has long been accepted for steel and concrete piping systems, and more recently with polyethylene piping, as a backup ring. When used with low pressure piping, AWWA flanges can frequently offer the user a cost savings over common forged flanges (typically ANSI B16.5 hub type flanges) which are generally designed for higher pressure applications such as oil, steam, chemical, etc.

Flange Material

The AWWA C207 specification does not require a specific grade of steel. Instead it establishes minimum physical and chemical properties as follows:

  • Minimum Tensile : 50,000 psi
  • Minimum Yield : 32,000 psi
  • Elongation : 2" - 18%; 8" - 14"
  • Maximum Carbon : .29%
  • Maximum Phosphorus : .04 %
  • Maximum Sulfur : .05 %

Frequently used materials might include: ASTM A-36 or ASTM A-283 plate steels or ASTM A181 or A105 forged steel meeting the requirements of AWWA C207.

Flange Facing

Flanges shall have a serrated finish of approximately 24 to 55 grooves per inch resulting in a 125-500 RMS surface finish. Serrations may be spiral or concentric. Other types of facings are also available upon request. AWWA flanges are normally supplied as flat faced, unless raised face is specified by customer.

Drilling Templates

Drilling templates are in multiples of four so that fittings may be made to face any quarter. Bolt holes straddle the center line. For flanges up to 84" holes are drilled 1/8 inch larger in diameter than the diameter of the bolt. For flanges larger than 84" holes are drilling 3/16" larger than the bolt diameter. Bolt holes may also be oversized by an additional 1/8" to accommodate insulators or to facilitate alignment.

Flange Marking

CAB flanges are customarily stamped with the trademark, nominal size, class, material designation and heat.

Flange Tolerances

  • Inside Diameter : + 1/16" - 0
  • Outside Diameter : +- 1/8"
  • Thickness (18" and smaller) : + 1/8" -0
  • Thickness (20" and larger) : +3/16" -0
  • Bolt Circle Diameter : +- 1/16"
  • Bolt Hole Spacing +- 1/32"

AWWA C207-13 Class D RING and BLIND FLANGESAWWA C207-13 Class D RING and BLIND FLANGES

AWWA C207 D-RINGS and BLINDS
Nominal
size
Outside
Diameter
(OD)
Slip-on
Bore
(ID)
No. of
Bolt
Holes
Diameter
Of
Holes
Bolt
Circle
(BC)
Thickness
(T)
Weight
Each
(lbs)
Slip-on Blind Slip-on Blind
4* 9.00 4.57 8 0.750 7.50 0.625 0.625 7.7 10.6
5* 10.00 5.66 8 0.875 8.50 0.625 0.650 8.6 13.6
6* 11.00 6.72 8 0.875 9.50 0.688 0.693 10.7 17.7
8* 13.50 8.72 8 0.875 11.75 0.688 0.812 15.3 31.8
10* 16.00 10.88 12 1.000 14.25 0.688 0.953 19.2 51.7
12* 19.00 12.88 12 1.000 17.00 0.812 1.117 33.1 86.7
14 21.00 14.19 12 1.125 18.75 0.938 1.133 46.8 107.4
16 23.50 16.19 16 1.125 21.25 1.000 1.265 60.1 149.8
18 25.00 18.19 16 1.250 22.75 1.062 1.331 63.7 177.7
20 27.50 20.19 20 1.250 25.00 1.125 1.448 79.5 233.6
22 29.50 22.19 20 1.375 27.25 1.188 1.568 89.9 290.5
24 32.00 24.19 20 1.375 29.50 1.250 1.661 111.6 364.5
26 34.25 26.25 24 1.375 31.75 1.312 1.786 128.1 448.2
28 36.50 28.25 28 1.375 34.00 1.312 1.906 140.6 542.6
30 38.75 30.25 28 1.375 36.00 1.375 2.008 163.3 647.3
32 41.75 32.25 28 1.625 38.50 1.500 2.150 210.0 798.6
34 43.75 34.25 32 1.625 40.50 1.500 2.252 219.1 916.9
36 46.00 36.25 32 1.625 42.75 1.625 2.370 259.4 1071.4
38 48.75 38.25 32 1.625 45.25 1.625 2.506 299.8 1278.2
40 50.75 40.25 36 1.625 47.25 1.625 2.609 311.1 1440.1
42 53.00 42.25 36 1.625 49.50 1.750 2.729 361.7 1648.1
44 55.25 44.25 40 1.625 51.75 1.750 2.849 385.1 1868.2
46 57.25 46.25 40 1.625 53.75 1.750 2.952 402.2 2083.7
48 59.50 48.25 44 1.625 56.00 1.875 3.072 457.3 2340.7
50 61.75 50.25 44 1.875 58.25 2.000 3.196 504.4 2601.9
52 64.00 52.25 44 1.875 60.50 2.000 3.315 539.1 2907.5
54 66.25 54.25 44 1.875 62.75 2.125 3.435 610.6 3236.7
60 73.00 60.25 52 1.875 69.25 2.250 3.779 759.1 4327.6
66 80.00 66.25 52 1.875 76.00 2.500 4.136 1017.0 5722.2
72 86.50 72.25 60 1.875 82.50 2.625 4.480 1198.2 7249.0
78 93.00 78.25 64 2.125 89.00 2.750 NA 1368.9 -
84 99.75 84.25 64 2.125 95.50 2.875 NA 1639.7 -
90 106.50 90.25 68 2.375 102.00 3.000 NA 1878.2 -
96 113.25 96.25 68 2.375 108.50 3.250 NA 2298.4 -
102 120.00 102.25 72 2.625 114.50 3.250 NA 2494.3 -
108 126.75 108.25 72 2.625 120.75 3.375 NA 2892.5 -
114 133.50 114.25 76 2.875 126.75 3.500 NA 3225.2 -
120 140.25 120.25 76 2.875 132.75 3.500 NA 3568.6 -
126 147.00 126.25 80 3.125 139.25 3.750 NA 4079.5 -
132 153.75 132.25 80 3.125 145.75 3.875 NA 4628.6 -
144 167.25 144.25 84 3.375 158.25 4.125 NA 5698.3 -

* 4" - 12" are rated 175 PSI; Larger sizes are rated 150 PSI. The purchaser shall specify the ID of the flange if other than standard as shown in table.

AWWA C207-13 Class E RING and BLIND FLANGES
AWWA C207 E-RINGS and BLINDS

Nominal
size
Outside
Diameter
(OD)
Slip-on
Bore
(ID)
No. of
Bolt
Of
Holes
Diameter of
Holes
Bolt
Circle
(BC)
Thickness
(T)
Weight
Each
(lbs)
Slip-on Blind Slip-on Blind
4 9.00 4.57 8 0.750 7.50 1.125 1.125 13.9 19.2
5 10.00 5.66 8 0.875 8.50 1.188 1.188 16.3 24.8
6 11.00 6.72 8 0.875 9.50 1.313 1.313 20.4 33.6
8 13.50 8.72 8 0.875 11.75 1.500 1.500 33.4 58.8
10 16.00 10.88 12 1.000 14.25 1.563 1.563 43.7 84.9
12 19.00 12.88 12 1.000 17.00 1.750 1.750 71.4 135.9
14 21.00 14.19 12 1.125 18.75 1.875 1.875 93.7 177.7
16 23.50 16.19 16 1.125 21.25 2.000 2.000 120.2 236.8
18 25.00 18.19 16 1.250 22.75 2.125 2.125 127.3 283.7
20 27.50 20.19 20 1.250 25.00 2.375 2.375 167.8 383.2
22 29.50 22.19 20 1.375 27.25 2.500 2.500 189.2 463.1
24 32.00 24.19 20 1.375 29.50 2.625 2.625 234.3 576.1
26 34.25 26.25 24 1.375 31.75 2.750 2.750 268.4 690.1
28 36.50 28.25 28 1.375 34.00 2.750 2.750 294.5 782.9
30 38.75 30.25 28 1.375 36.00 2.875 2.875 341.4 926.8
32 41.75 32.25 28 1.625 38.50 3.000 3.000 420.0 1114.3
34 43.75 34.25 32 1.625 40.50 3.000 3.050 438.3 1241.8
36 46.00 36.25 32 1.625 42.75 3.125 3.209 498.9 1450.7
38 48.75 38.25 32 1.625 45.25 3.125 3.394 576.5 1731.1
40 50.75 40.25 36 1.625 47.25 3.250 3.533 622.3 1950.2
42 53.00 42.25 36 1.625 49.50 3.375 3.695 697.6 2231.5
44 55.25 44.25 40 1.625 51.75 3.375 3.857 742.7 2529.4
46 57.25 46.25 40 1.625 53.75 3.438 3.997 790.2 2821.3
48 59.50 48.25 44 1.625 56.00 3.500 4.159 853.6 3169.0
50 61.75 50.25 44 1.875 58.25 3.500 4.327 882.7 3522.6
52 64.00 52.25 44 1.875 60.50 3.625 4.489 977.1 3937.1
54 66.25 54.25 44 1.875 62.75 3.750 4.651 1077.6 4382.5
60 73.00 60.25 52 1.875 69.25 3.875 5.116 1307.4 5858.7
66 80.00 66.25 52 1.875 76.00 4.250 5.601 1729.0 7749.0
72 86.50 72.25 60 1.875 82.50 4.375 6.066 1997.0 9815.3
78 93.00 78.25 64 2.125 89.00 4.750 NA 2364.5 -
84 99.75 84.25 64 2.125 95.50 4.750 NA 2709.1 -
90 106.50 90.25 68 2.375 102.00 5.125 NA 3208.8 -
96 113.25 96.25 68 2.375 108.50 5.125 NA 3624.3 -
102 120.00 102.25 72 2.625 114.50 5.500 NA 4221.1 -
108 126.75 108.25 72 2.625 120.75 5.500 NA 4713.8 -
114 133.50 114.25 76 2.875 126.75 5.875 NA 5413.8 -
120 140.25 120.25 76 2.875 132.75 5.875 NA 5990.1 -
126 147.00 126.25 80 3.125 139.25 6.250 NA 6799.2 -
132 153.75 132.25 80 3.125 145.75 6.250 NA 8062.8 -
144 167.25 144.25 84 3.375 158.25 6.750 NA 9324.4 -

AWWA C207-13 Class F RING and BLIND FLANGES

AWWA C207 F-RINGS and BLINDS
Nominal
size
Outside
Diameter
(OD)
Slip-on
Bore
(ID)
No. of
Bolt
Holes
Diameter
Of
Holes
Bolt
Circle
(BC)
Thickness
(T)
Weight
Each
(lbs)
Slip-on Blind Slip-on Blind
4 10.00 4.57 8 0.875 7.88 1.13 1.130 18.4 23.6
5 11.00 5.66 8 0.875 9.25 1.21 1.210 22.3 30.9
6 12.50 6.72 12 0.875 10.62 1.31 1.310 29.7 42.9
8 15.00 8.72 12 1.000 13.00 1.31 1.310 39.9 62.1
10 17.50 10.88 16 1.125 15.25 1.50 1.500 56.0 95.5
12 20.50 12.88 16 1.250 17.75 1.63 1.630 83.2 143.4
14 23.00 14.19 20 1.250 20.25 1.94 1.940 128.0 214.9
16 25.50 16.19 20 1.375 22.50 2.14 2.140 166.8 291.7
18 28.00 18.19 24 1.375 24.75 2.25 2.250 204.2 369.8
20 30.50 20.19 24 1.375 27.00 2.33 2.330 247.4 458.8
22 33.00 22.19 24 1.375 29.25 2.50 2.500 306.7 580.6
24 36.00 24.19 24 1.625 32.00 2.69 2.690 387.6 737.9
26 38.25 26.25 28 1.875 34.50 3.00 3.000 451.0 911.0
28 40.75 28.25 28 1.875 37.00 3.13 3.130 532.2 1088.0
30 43.00 30.25 28 1.875 39.25 3.15 3.166 585.7 1233.3
32 45.25 32.25 28 1.875 41.50 3.25 3.332 657.5 1445.2
34 47.50 34.25 28 1.875 43.50 3.38 3.475 740.7 1668.6
36 50.00 36.25 32 2.125 46.00 3.46 3.671 801.9 1924.2
38 52.25 38.25 32 2.125 48.00 3.50 3.815 874.3 2195.0
40 54.25 40.25 36 2.125 50.25 3.63 3.982 937.4 2463.8
42 57.00 42.25 36 2.125 52.75 3.81 4.171 1103.4 2864.7
44 59.25 44.25 36 2.125 55.00 4.00 4.338 1237.2 3231.9
46 61.50 46.25 40 2.125 57.25 4.13 4.505 1360.8 3628.7
48 65.00 48.25 40 2.125 60.75 4.50 4.781 1736.8 4322.1

The purchaser shall specify the ID of the flange if other than standard as shown in table.

AWWA C207-13 Class B RING and BLIND FLANGES

AWWA C207 B-RINGS and BLINDS
Nominal
size
Outside
Diameter
(OD)
Slip-on
Bore
(ID)
No. of
Bolt
Holes
Diameter
Of
Holes
Bolt
Circle
(BC)
Thickness
(T)
Weight
Each
(lbs)
Slip-on Blind Slip-on Blind
4 9.00 4.57 8 0.750 7.50 0.625 0.625 7.7 10.6
5 10.00 5.66 8 0.875 8.50 0.625 0.625 8.6 13.1
6 11.00 6.72 8 0.875 9.50 0.688 0.688 10.7 17.6
8 13.50 8.72 8 0.875 11.75 0.688 0.688 15.3 27.0
10 16.00 10.88 12 1.000 14.25 0.688 0.688 19.2 37.4
12 19.00 12.88 12 1.000 17.00 0.688 0.719 28.1 55.8
14 21.00 14.19 12 1.125 18.75 0.688 0.791 34.4 75.0
16 23.50 16.19 16 1.125 21.25 0.688 0.892 41.3 105.6
18 25.00 18.19 16 1.250 22.75 0.688 0.950 41.2 126.8
20 27.50 20.19 20 1.250 25.00 0.688 1.040 48.6 167.8
22 29.50 22.19 20 1.375 27.25 0.750 1.132 56.8 209.7
24 32.00 24.19 20 1.375 29.50 0.750 1.216 67.0 266.9
26 34.25 26.25 24 1.375 31.75 0.812 1.307 79.3 328.0
28 36.50 28.25 28 1.375 34.00 0.875 1.398 93.7 398.0
30 38.75 30.25 28 1.375 36.00 0.875 1.477 103.9 476.1
32 41.75 32.25 28 1.625 38.50 0.938 1.581 131.3 587.2
34 43.75 34.25 32 1.625 40.50 0.938 1.661 137.0 676.2
36 46.00 36.25 32 1.625 42.75 1.000 1.751 159.7 791.6
38 48.75 38.25 32 1.625 45.25 1.000 1.853 184.5 945.1
40 50.75 40.25 36 1.625 47.25 1.000 1.933 191.5 1067.0
42 53.00 42.25 36 1.625 49.50 1.125 2.023 232.5 1221.8
44 55.25 44.25 40 1.625 51.75 1.125 2.114 247.6 1386.3
46 57.25 46.25 40 1.625 53.75 1.125 2.194 258.6 1548.6
48 59.50 48.25 44 1.625 56.00 1.250 2.285 304.9 1741.1
50 61.75 50.25 44 1.875 58.25 1.250 2.377 315.2 1935.1
52 64.00 52.25 44 1.875 60.50 1.250 2.468 336.9 2164.6
54 66.25 54.25 44 1.875 62.75 1.375 2.559 395.1 2411.3
60 73.00 60.25 52 1.875 69.25 1.500 2.820 506.1 3229.4
66 80.00 66.25 52 1.875 76.00 1.625 3.092 661.1 4277.8
72 86.50 72.25 60 1.875 82.50 1.750 3.353 798.8 5425.4
78 93.00 78.25 64 2.125 89.00 2.000 NA 995.6 -
84 99.75 84.25 64 2.125 95.50 2.000 NA 1140.7 -
90 106.50 90.25 68 2.375 102.00 2.250 NA 1408.8 -
96 113.25 96.25 68 2.375 108.50 2.250 NA 1591.2 -
102 120.00 102.25 72 2.625 114.50 2.500 NA 1918.7 -
108 126.75 108.25 72 2.625 120.75 2.500 NA 2142.6 -
114 133.50 114.25 76 2.875 126.75 2.750 NA 2534.1 -
120 140.25 120.25 76 2.875 132.75 2.750 NA 2803.9 -
126 147.00 126.25 80 3.125 139.25 3.000 NA 3263.6 -
132 153.75 132.25 80 3.125 145.75 3.000 NA 3583.5 -
144 167.25 144.25 84 3.375 158.25 3.250 NA 4489.5 -

The purchaser shall specify the ID of the flange if other than standard as shown in table.

AWWA C207-13 Class D & E STEEL HUB FLANGES

Note: AWWA dropped hub flanges from the C207 sttandard in 2013. These dimensions are being provided for industry reference.

AWWA C207 STEEL HUB FLANGES

Nominal
size
Outside
Diameter
(OD)
Slip-on
Bore
(ID)
No. of
Bolt
Holes
Diameter
Of
Holes
Bolt
Circle
(BC)
Flange Dimensions
Class D
Flange Dimensions
Class E
T L E T L E
4 9.00 4.57 8 0.750 7.50 0.500 0.875 5.312 0.938 1.312 5.312
5 10.00 5.66 8 0.875 8.50 0.562 1.250 6.312 0.938 1.438 6.438
6 11.00 6.72 8 0.875 9.50 0.562 1.250 7.562 1.000 1.562 7.562
8 13.50 8.72 8 0.875 11.75 0.562 1.250 9.688 1.125 1.750 9.688
10 16.00 10.88 12 1.000 14.25 0.688 1.250 12.000 1.188 1.938 12.000
12 19.00 12.88 12 1.000 17.00 0.688 1.250 14.375 1.250 2.188 14.375
14 21.00 14.19 12 1.125 18.75 0.750 1.250 15.750 1.375 2.250 15.750
16 23.50 16.19 16 1.125 21.25 0.750 1.250 18.000 1.438 2.500 18.000
18 25.00 18.19 16 1.250 22.75 0.750 1.250 19.875 1.562 2.688 19.875
20 27.50 20.19 20 1.250 25.00 0.750 1.250 22.000 1.688 2.875 22.000
22 29.50 22.19 20 1.375 27.25 1.000 1.750 24.250 1.812 3.125 24.000
24 32.00 24.19 20 1.375 29.50 1.000 1.750 26.125 1.875 3.250 26.125
26 34.25 26.25 24 1.375 31.75 1.000 1.750 28.500 2.000 3.375 28.500
28 36.50 28.25 28 1.375 34.00 1.000 1.750 30.500 2.062 3.438 30.750
30 38.75 30.25 28 1.375 36.00 1.000 1.750 32.500 2.125 3.500 32.750
32 41.75 32.25 28 1.625 38.50 1.125 1.750 34.750 2.250 3.625 35.000
34 43.75 34.25 32 1.625 40.50 1.125 1.750 36.750 2.312 3.688 37.000
36 46.00 36.25 32 1.625 42.75 1.125 1.750 38.750 2.375 3.750 39.250
38 48.75 38.25 32 1.625 45.25 1.125 1.750 40.750 2.375 3.750 41.750
40 50.75 40.25 36 1.625 47.25 1.125 1.750 43.000 2.500 3.875 43.750
42 53.00 42.25 36 1.625 49.50 1.250 1.750 45.000 2.625 4.000 46.000
44 55.25 44.25 40 1.625 51.75 1.250 2.250 47.000 2.625 4.000 48.000
46 57.25 46.25 40 1.625 53.75 1.250 2.250 49.000 2.688 4.062 50.000
48 59.50 48.25 44 1.625 56.00 1.375 2.500 51.000 2.750 4.125 52.250
50 61.75 50.25 44 1.875 58.25 1.375 2.500 53.000 2.750 4.125 54.250
52 64.00 52.25 44 1.875 60.50 1.375 2.500 55.000 2.875 4.250 56.500
54 66.25 54.25 44 1.875 62.75 1.375 2.500 57.000 3.000 4.375 58.750
60 73.00 60.25 52 1.875 69.25 1.500 2.750 63.000 3.125 4.500 65.250
66 80.00 66.25 52 1.875 76.00 1.500 2.750 69.000 3.375 4.875 71.500
72 86.50 72.25 60 1.875 82.50 1.500 2.750 75.000 3.500 5.000 78.500
78 93.00 78.25 64 2.125 89.00 1.750 3.000 81.250 3.875 5.375 84.500
84 99.75 84.25 64 2.125 95.50 1.750 3.000 87.500 3.875 5.375 90.500
90 106.50 90.25 68 2.375 102.00 2.000 3.250 93.750 4.250 5.750 96.750
96 113.25 96.25 68 2.375 108.50 2.000 3.250 100.000 4.250 5.750 102.750

Overboring of Flanges: Hub flanges are intended to be used on pipes having an OD equal to the nominal pipe size as shown in the first column of this table. Ring flanges (Class B, D, E, and F) may be overbored or counterbored to accommodate pipes having larger OD's.

AWWA C228-14 Stainless Steel Ring Flanges - Class SF
AWWA C228-08 Stainless Steel Ring Flanges - Class SF

Nom
Pipe
Size
OD of
Flange
(A)
ID of Flange (B) # of
Bolts
Bolt Circle
Dia
(C)
Dia
of
Bolts
Thickness
of Flange
(T)
    Pipe Tube        
4 10.00 4.57 4.03 8.00 7.88 0.875 1.13
5 11.00 5.66 5.03 8.00 9.25 0.875 1.21
6 12.50 6.72 6.03 12.00 10.62 0.875 1.31
8 15.00 8.72 8.03 12.00 13.00 1.00 1.31
10 17.50 10.88 10.03 16.00 15.25 1.125 1.50
12 20.50 12.88 12.06 16.00 17.75 1.25 1.63
14 23.00 14.19 - 20.00 20.25 1.25 1.94
16 25.50 16.19 - 20.00 22.50 1.375 2.14
18 28.00 18.19 - 24.00 24.75 1.375 2.25
20 30.50 20.19 - 24.00 27.00 1.375 2.33
22 33.00 22.19 - 24.00 29.25 1.375 2.50
24 36.00 24.19 - 24.00 32.00 1.625 2.69
26 38.25 26.25 - 28.00 34.50 1.875 3.00
28 40.75 28.25 - 28.00 37.00 1.875 3.13
30 43.00 30.25 - 28.00 39.25 1.875 3.15
32 45.25 32.25 - 28.00 41.50 1.875 3.25
34 47.50 34.25 - 28.00 43.50 1.875 3.38
36 50.00 36.25 - 32.00 46.00 2.125 3.46
38 52.25 38.25 - 32.00 48.00 2.125 3.50
40 54.25 40.25 - 36.00 50.25 2.125 3.63
42 57.00 42.25 - 36.00 52.75 2.125 3.81
44 59.25 44.25 - 36.00 55.00 2.125 4.00
46 61.50 46.25 - 40.00 57.25 2.125 4.13
48 65.00 48.25 - 40.00 60.75 2.125 4.50

DIMENSIONS ARE IN INCHES
The purchaser shall specify the ID of the flange if other than standard as shown in table.

AWWA C228-14 Stainless Steel Ring Flanges

AWWA C228-08 Stainless Steel Ring Flanges Classes SA, SB, SD, SE
Nom.
Pipe
Size
OD of
Flange
(A)
ID of Flange (B) # of
Bolts
Bolt Circle
Dia
Dia
of Bolts
Thickness of Flange
    Pipe Tube       Class SA
50 psi
Class SB
86 psi
Class SD
150 psi
Class SE
275 psi
2 6.00 2.44 2.03 4 4.75 0.75 0.5 0.625 0.625 1.125
2.5 7.00 2.94 2.53 4 5.50 0.75 0.5 0.625 0.625 1.125
3 7.50 3.57 3.03 4 6.00 0.75 0.5 0.625 0.625 1.125
4 9.00 4.57 4.03 8 7.50 0.75 0.5 0.625 0.625 1.125
5 10.00 5.66 5.03 8 8.50 0.875 0.5 0.625 0.625 1.188
6 11.00 6.72 6.03 8 9.50 0.875 0.5 0.688 0.688 1.313
8 13.50 8.72 8.03 8 11.75 0.875 0.5 0.688 0.688 1.5
10 16.00 10.88 10.03 12 14.25 1 0.625 0.688 0.688 1.563
12 19.00 12.88 12.06 12 17.00 1 0.625 0.688 0.812 1.75
14 21.00 14.19 - 12 18.75 1.125 0.625 0.688 0.938 1.875
16 23.50 16.19 - 16 21.25 1.125 Use class SB 0.688 1 2
18 25.00 18.19 - 16 22.75 1.25 Use class SB 0.688 1.062 2.125
20 27.50 20.19 - 20 25.00 1.25 Use class SB 0.688 1.125 2.375
22 29.50 22.19 - 20 27.25 1.375 Use class SB 0.75 1.188 2.5
24 32.00 24.19 - 20 29.50 1.375 Use class SB 0.75 1.25 2.625
26 34.25 26.25 - 24 31.75 1.375 Use class SB 0.812 1.312 2.75
28 36.50 28.25 - 28 34.00 1.375 Use class SB 0.875 1.312 2.75
30 38.75 30.25 - 28 36.00 1.375 Use class SB 0.875 1.375 2.875
32 41.75 32.25 - 28 38.50 1.625 Use class SB 0.938 1.5 3
34 43.75 34.25 - 32 40.50 1.625 Use class SB 0.938 1.5 3
36 46.00 36.25 - 32 42.75 1.625 Use class SB 1 1.625 3.125
38 48.75 38.25 - 32 45.25 1.625 Use class SB 1 1.625 3.125
40 50.75 40.25 - 36 47.25 1.625 Use class SB 1 1.625 3.25
42 53.00 42.25 - 36 49.50 1.625 Use class SB 1.125 1.75 3.375
44 55.25 44.25 - 40 51.75 1.625 Use class SB 1.125 1.75 3.375
46 57.25 46.25 - 40 53.75 1.625 Use class SB 1.125 1.75 3.438
48 59.50 48.25 - 44 56.00 1.625 Use class SB 1.25 1.875 3.5
50 61.75 50.25 - 44 58.25 1.875 Use class SB 1.25 2 3.5
52 64.00 52.25 - 44 60.50 1.875 Use class SB 1.25 2 3.625
54 66.25 54.25 - 44 62.75 1.875 Use class SB 1.375 2.125 3.75
60 73.00 60.25 - 52 69.25 1.875 Use class SB 1.5 2.25 3.875
66 80.00 66.25 - 52 76.00 1.875 Use class SB 1.625 2.5 4.25
72 86.50 72.25 - 60 82.50 1.875 Use class SB 1.75 2.625 4.375

DIMENSIONS ARE IN INCHES
The purchser shall specify the ID of the flange if other than standard as shown in table.

AWWA C228-14 Stainless Steel Blind Flanges

CLASSES SA, SB, SD, SE, SF
AWWA C228-08 Stainless Steel Blind Flanges Classes SA, SB, SD, SE, SF
Nom
Pipe Size
Class SA
50 psi
Class SB
86 psi
Class SD
150 psi
Class SE
275 psi
Class SF
300 psi
2 0.50 NA NA NA NA
2.5 0.50 NA NA NA NA
3 0.50 NA NA NA NA
4 0.50 0.625 0.625 1.125 1.13
5 0.50 0.625 0.65 1.188 1.21
6 0.50 0.688 0.693 1.313 1.31
8 0.50 0.688 0.8125 1.5 1.31
10 Use class SB 0.688 0.953 1.563 1.5
12 Use class SB 0.719 1.117 1.75 1.63
14 Use class SB 0.791 1.133 1.875 1.94
16 Use class SB 0.892 1.265 2 2.14
18 Use class SB 0.95 1.331 2.125 2.25
20 Use class SB 1.04 1.148 2.375 2.33
22 Use class SB 1.132 1.568 2.5 2.5
24 Use class SB 1.216 1.661 2.625 2.69
26 Use class SB 1.307 1.786 2.75 3
28 Use class SB 1.398 1.906 2.75 3.13
30 Use class SB 1.477 2.008 2.875 3.166
32 Use class SB 1.581 2.15 3 3.332
34 Use class SB 1.661 2.252 3.05 3.475
36 Use class SB 1.751 2.37 3.209 3.671
38 Use class SB 1.853 2.506 3.394 3.815
40 Use class SB 1.933 2.609 3.533 3.982
42 Use class SB 2.023 2.729 3.695 4.171
44 Use class SB 2.114 2.849 3.857 4.338
46 Use class SB 2.194 2.952 3.997 4.505
48 Use class SB 2.285 3.072 4.159 4.781
50 Use class SB 2.377 3.196 4.327 -
52 Use class SB 2.468 3.315 4.489 -
54 Use class SB 2.559 3.435 4.651 -
60 Use class SB 2.82 1.779 5.116 -
66 Use class SB 3.092 4.136 5.601 -

DIMENSIONS ARE IN INCHES


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