AWWA Flanges

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AWWA Flanges


Karteek Metal is a professional supplier, mainly engaging on manufacturing various AWWA Flanges. We are the proud member of MASSMA that depicts our sound networking in the market and ability to grow profusely. Established in the year 1980, we Karteek Metal, are an eminent manufacturer, trader, distributor of wide range of AWWA Flanges We also provide customized solutions to clients, as per their specific requirements. Our products are widly used by many industries. our well established infrastructure is equipped with highly advanced machinery and tools that enable us to manufacture a quality range of AWWA Flanges. All activities are managed by efficient professionals who put in their core efforts to provide flawlessness in our range of AWWA Flanges. You Can Get Best Price on AWWA Flanges and timely delivery.
AWWA C207 Class D-Rings and Blinds
AWWA C207 Class E-Rings and Blinds
AWWA C207 Class F-Rings and Blinds
AWWA C207 Class B-Rings and Blinds
AWWA C207 Steel Hub Flanges
AWWA C228 SF Stainless Steel Ring Flanges
AWWA C228 SA/SB/SD/SE Stainless Steel Ring Flanges
AWWA C228 Stainless Steel Blind Flanges
ANSI/ASME Class 150 Forged Flanges
ANSI/ASME Class 300 Forged Flanges
ANSI/ASME Class 400 Forged Flanges
ANSI/ASME Class 600 Forged Flanges
ANSI/ASME Class 900 Forged Flanges
ANSI/ASME Class 1500 Forged Flanges
ANSI/ASME Class 2500 Forged Flanges
Ductile Iron Backup Flanges
Stainless Steel Plate Flanges
Carbon Steel Back-Up Flanges
Metal Hose Flanges
Forged Steel Lap-Joint 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 latest revision committee was led by the President of CAB Incorporated, Mike Vanderbosch, who has some of the industry's most extensive knowledge on AWWA flanges.

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
2" - 18%; 8" - 14"
Maximum Carbon
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"

Types Of Flanges

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The Petrochemical, Process, and Waterworks industries. ANSI, API, AWWA pipe flanges in carbon steel , stainless steel , alloys and chrome steel. Weld Neck, Slip on, Blind, Threaded, Socket Weld, Lap Joint, Orifice Flanges, Ring, and custom flanges in sizes 1/2" to 203". Pressure classes - 75, 125, 150, 175, 250, 300, 350, 400, 600, 900, 1500, 2500, 5K, 10K, 15K, 20K. High Yield - Low Temp.

Flange Standards
ANSI B16.28 Flange
ANSI B16.36 Flange
ANSI B16.47 Flange
ANSI B16.48 Flange
ANSI B16.5 Flange
ANSI B16.9 Flange
AWWA Standard Flange
AWWA C115 Flange
AWWA C207 Flange
AWWA Class D Flange
DIN Standard Flange
DIN 2501 Flange
DIN 2502 Flange
DIN 2533 Flange
DIN 2576 Flange
DIN 2605 Flange
DIN 2628 Flange
DIN 2629 Flange
DIN 2631 Flange
DIN 2632 Flange
DIN 2633 Flange
DIN 2634 Flange
DIN 2635 Flange
DIN 2636 Flange
DIN 2637 Flange
DIN 2638 Flange
DIN 2642 Flange
DIN 2656 Flange
DIN 2673 Flange
DIN 86029 Flange
DIN 86030 Flange
DIN 86041 Flange
DIN 86044 Flange
ASME Standard Flange
ASME A234 Flange
ASME B16.47 Flange
ASME B16.5 Flange
ASME B16.9 Flange
BS Standard Flange
BS 3293 Flange
BS 4504 Flange
BS 4505 Flange
GOST Standard Flange
GOST 12815 Flange
GOST 12820 Flange
GOST 12821 Flange
GOST 12822 Flange
EN Standard Flange
EN 1092 Flange
EN 1759 Flange
EN 1901 Flange
EN 1902 Flange
ISO Standard Flange
ISO 5211 Flange
ISO 6164 Flange
ISO 7005 Flange
JIS Standard Flange
JIS B2210 Flange
JIS B2212 Flange
JIS B2220 Flange
JIS B2238 Flange
JIS B2239 Flange
JIS B2311 Flange
JIS B2312 Flange
JIS B2313 Flange
MSS SP Standard Flange
MSS SP-44 Flange
HG Standard Flange
HG 20592 Flange
HG 20593 Flange
HG 20594 Flange
HG 20595 Flange
HG 20601 Flange
SABS Standard Flange
SABS 1123 Flange
UNI Standard

Flange Materials
Alloy Steel Flange
Aluminium Flange
ASTM A105 Flange
ASTM A126 Flange
ASTM A18226 Flange
ASTM A216 Flange
ASTM A217 Flange
ASTM A234 Flange
ASTM A285 Flange
ASTM A350 Flange
ASTM A351 Flange
ASTM A352 Flange
ASTM A515 Flange
ASTM A516 Flange
ASTM A536 Flange
ASTM A694 Flange
Carbon Steel Flange
Cast Iron Flange
Cast Steel Flange
Ductile Iron Flange
Forged Steel Flange
S235JR Flange
Stainless Steel16

Flange Pressure Flange
Class Rating Flange
1500LB Flange
150LB Flange
2500LB Flange
300LB Flange
400LB Flange
600LB Flange
800LB Flange
900LB Flange
Class D Flange
Nominal Pressure Flange
Nominal Pressure Flange
PN10 Flange
PN100 Flange
PN150 Flange
PN16 Flange
PN160 Flange
PN20 Flange
PN25 Flange
PN250 Flange
PN40 Flange
PN420 Flange
PN50 Flange

Flange Faces Flange
FF Flange
M&F Flange
RF44 Flange
RTJ Flange

Flange Surface Finish Flange
Black Flange
Galvanized Flange

Flanges Grades
CL1 Flanges
CL2 Flanges
CL3 Flanges
F1 Flanges
F11 Flanges
F12 Flanges
F2 Flanges
F22 Flanges
F304 Flanges
F304H Flanges
F304L Flanges
F310 Flanges
F310H Flanges
F310S Flanges
F316 Flanges
F316H Flanges
F316L Flanges
F317 Flanges
F317H Flanges
F317L Flanges
F321 Flanges
F321H Flanges
F321L Flanges
F347 Flanges
F347H Flanges
F42 Flanges
F44 Flanges
F46 Flanges
F48 Flanges
F5 Flanges
F50 Flanges
F52 Flanges
F56 Flanges
F6 Flanges
F60 Flanges
F65 Flanges
F70 Flanges
F9 Flanges
F91 Flanges
GP240GH Flanges
LF1 Flanges
LF2 Flanges
LF3 Flanges
S31254 Flanges

Flanges Schedules Flanges
Schedule 10 Flanges
Schedule 100 Flanges
Schedule 10S Flanges
Schedule 120 Flanges
Schedule 140 Flanges
Schedule 160 Flanges
Schedule 20 Flanges
Schedule 20S Flanges
Schedule 30 Flanges
Schedule 40 Flanges
Schedule 40S Flanges
Schedule 5 Flanges
Schedule 5S Flanges
Schedule 60 Flanges
Schedule 80 Flanges
Schedule 80S Flanges
Schedule STD Flanges
Schedule XS Flanges
Schedule XXS

Flanges Sizes
NPS Size Flanges
1 1/2 Inch Flanges
1 1/4 Inch Flanges
1 Inch Flanges
1/2 Inch Flanges
1/4 Inch Flanges
1/8 Inch Flanges
10 Inch Flanges
12 Inch Flanges
14 Inch Flanges
16 Inch Flanges
18 Inch Flanges
2 1/2 Inch Flanges
2 Inch Flanges
20 Inch Flanges
22 Inch Flanges
24 Inch Flanges
26 Inch Flanges
28 Inch Flanges
3 Inch Flanges
3/4 Inch Flanges
3/8 Inch Flanges
30 Inch Flanges
32 Inch Flanges
36 Inch Flanges
4 Inch Flanges
40 Inch Flanges
42 Inch Flanges
44 Inch Flanges
48 Inch Flanges
52 Inch Flanges
56 Inch Flanges
6 Inch Flanges
60 Inch Flanges
64 Inch Flanges
8 Inch Flanges
DN Size Flanges
DN10 Flanges
DN100 Flanges
DN1000 Flanges
DN1050 Flanges
DN1100 Flanges
DN1200 Flanges
DN1300 Flanges
DN1400 Flanges
DN15 Flanges
DN150 Flanges
DN1500 Flanges
DN1600 Flanges
DN20 Flanges
DN200 Flanges
DN2000 Flanges
DN25 Flanges
DN250 Flanges
DN300 Flanges
DN32 Flanges
DN350 Flanges
DN40 Flanges
DN400 Flanges
DN450 Flanges
DN50 Flanges
DN500 Flanges
DN550 Flanges
DN6 Flanges
DN600 Flanges
DN65 Flanges
DN650 Flanges
DN700 Flanges
DN750 Flanges
DN8 Flanges
DN80 Flanges
DN800 Flanges