Steel pipe flanges for waterworks services engineering toolbox. Awwa standard for steel pipe flanges for waterworks service sizes 4 in. The roof shall be constructed of noncorrugated triangular aluminum panels. Ansi chart cast and ductile iron flange chart dimensions. Awwa standard for steel pipe flanges for waterworks. The six common types of ansi class flanges, including. Awwa dropped hub flanges from the c207 standard in 20. Awwa c20701 class b and d hub flanges are identical to industry standard class 125 light weight flanges. Awwa c207 class d ring flanges are by far the most commonly specified amongst the awwa flange users. Awwa flange standard ansi, class 150 lbs, 300 lbs, 600 lbs, 900 lbs. Steel pipe flanges for waterworks service a sizes 4 in. It should be noted that some soft seated valves such as knife gate, rubber lined butter.
American national standard for flanged ductileiron pipe with ductileiron or grayiron threaded flanges, ansiawwa c20794. Pressure rating at atmospheric temperature is 275 psi. Awwa c20720 steel pipe flanges for waterworks service. Some of the american water works association standards that deal with flanges are ansiawwa c110a21. Steel material conforms to the requirements of awwa c207 specifications. Pressure rating at atmospheric temperature is 300 psi. Awwa c207 flanges dimensions, class 150 flanges, class e.
Awwa c207 flange standard china hebei haihao flange. Flanges may be back or spot faced for compliance with flange thickness tolerances. Flange dimensions are determined by the pipe size and the pressure class required for the application. Ansi covers numbered class flanges from 150 to 2500, and awwa standards encompass lettered flange classes b, e, f, and the commonly used class d connection.
Awwa c 504 butterfly valves vahntech international inc. Ansi covers numbered class flanges from 150 to 2500, and awwa standards encompass lettered flange classes b, e, f, and the commonly used class d. Table 2 awwa c20718 class b ring flanges on coastal flange. Awwa c207 flanges dimensions, awwa c207 flange material. The flange technical information in awwa standard system is ansiawwa c207. It covers forged steel flanges, sizes nps 12 dn 15 through nps 24 dn 600. The awwa c20701 standard describes two types of slipon flanges, ring type and hub type that may be used interchangeably if the dimensions given in the standard are used. With approximately 50,000 members, awwa provides solutions to improve public health, protect the environment, strengthen the economy and. Browse awwa flanges in the coastal flange catalog including table 2 awwa c20718 class b ring flanges, awwa c20794 class b hub flanges,table 2 awwa c20718 class d ring flanges,table 3 awwa c20707 class d hub flanges,table 4 awwa c20707 class e hub. American ductile iron flanged fittings ansi awwa c110a21. Dec 08, 2015 awwa class b c207 steelring flanges 86 psi notes. The flange facings are machine finished toansiasme b16. It is further intended that these flanges be attached by welding in accordance. Standard finishes for face of flange mss sp6 flange facing.
Awwa standards evaluate properties that particularly affect potable water use, as opposed to broader industrial flange applications. Flanged 22 12 bend flanged 11 14 bend dimensions and weights flange accessories must be ordered. Information on flanges bs 3293 weld neck and slipon flanges class,bs 4504 circular flange,bs 4504 facing dimensions,bs 10 flanges tables d and e of bs 10. Awwa standard for steel pipe flanges for waterworks servicesizes 4 in. The american water works association first published consensus documents in 1908. Awwa c207 flanges dimensions, awwa c207 flange material supplier. For example, awwa flange ratings are applicable only at atmospheric temperature, while ansi ratings cover flange installations from 20f to 1500f. Awwa c20720 steel pipe flanges for waterworks service sizes 4 inch thru 144 inch 100 mm thru 3,600 mm this standard covers two types of slipon flanges, ring type and hub type, that may be used interchangeably if the dimensions given in the standard are used. Liquidepoxy coating systems for the interior and exterior of steel water pipelines. As these standards are designed for cold water service, their pressure ratings are higher.
Awwa recommends the use of dished head assemblies as alternate to blind flanges, sizes over 72 nominal. We offer high quality threaded flanges that are dimensionally accurate and highly resistant to corrosion. Monoflange mkii bodies incorporate an overlapping seat which also forms a gasket for the flange face. Awwa flange standards awwa flange standards differ from ansi american national standards institute and asme american society of mechanical engineers certifications in a variety of ways, the most important being their specificity. Panels are sealed and firmly clamped in an interlocking manner to a fully triangulated aluminum space truss system of wide flange extrusions, thus forming a dome structure. These standards cover grey iron, ductile iron, various steels, and nickel alloy flanges with classifications from class 125 to class 2500. All are manufactured in strict accordance with ansi b16.
Awwa standards provide flange properties intended for potable water use only. Most notably, awwa c110 ductile iron and gray iron fittings describes 3 to 48inch fittings and flanged joints with class 125 dimensions for waterworks. Technical data jersey village, texas coastal flange. Steel awwa flanges awwa c207 steel flanges, valves and rubber expansion joints. In contrast, ansi standards are aimed at industrial flange applications. Awwa provides ratings for a much broader range of nominal pipe sizes 3. This standard covers two types of slipon flanges, ring type and hub type, that may be used interchangeably if the dimensions given in the standard are used. Awwa flange catalog loaded with dimensions and weights on awwa flanges we deliver. Industrial awwa standard flanges flangesforgingsflange. Awwa flange standards differ from ansi american national standards institute and asme american society of mechanical engineers certifications in a. The flange technical information in awwa standard system is ansi awwa c207. Flanges table, flanges dimensions, flanges standard chart, flanges size chart india. Look inside the purpose of this standard is to provide minimum requirements and dimensions for a variety of steel flanges for attachment to steel water pipe. The most common pressure range is awwa class d, rated at 175 psi for sizes under 12 inches and 150 psi for larger sizes.
Flange stud bolts, bolts flanges chart, bolts flanges. Raised face flange enquiry the raised face is the most common used flange face. Flange dimensions are standardized by various international organizations such as ansi asme united states, bs10 britain, jisks japankorea, and pndin europe. Ring flanges class b, d, e, and f may be overbored or. Awwa c110 applies to ductile iron and gray iron flanges and fittings. Mss, api, awwa, ansi and csa standards ansi, mss and api standards govern flange dimensions and tolerances. Awwa flange standards differ from ansi american national standards institute and asme american society of mechanical engineers certifications in a variety of ways, the most important being their specificity. Class 6f awwa standard steelring flange texas flange. Fusionbonded epoxy coating for the interior and exterior of steel water pipelines. Our products provide high performance, reliable service and long service life. It is called raised face because the gasket is raised 116. This discussion on awwa flange standards and ansi flange standards is based on information from ansiawwa c115a21. These flanges have the same od and drilling as ansiasme b16. Awwa c20718 steel pipe flanges for waterworks servicesizes.
Steel awwa flanges awwa c207 api international, inc. Awwa c207 flange standard china hebei haihao flange factory. For diameters over 48 in, designers should consider using dished heads welded to a standard flange. Flanges available overdrilled to accommodate insulators. Class 6f awwa standard steelring flange pdf for printing. Ansi standard flange dimensions are designated as 150, 300, 400, 600, 900, 1500, and 2500, in sizes nps 12 through nps 24. Pipe facetoface dimensions conform to a tolerance of. Awwa c22808 stainless steel ring flangesclasses sa, sb. Alternative clearspan aluminum dome deck assembly 1. Instead it establishes minimum physical and chemical properties as follows. Awwa standards cover hundreds of products and procedures. Flanges are standardized according publications from organizations like. Flanges shall have a serrated finish of approximately 24 to 55 grooves per inch resulting in a 125500 rms surface finish.
Table 2 awwa c20718 class d ring flanges categories. Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions awwa c207 flange classes choose your pressure class below. These awwa standards provide flange properties intended for potable water use only. Awwa flange standard, awwa c207 flanges manufacturers. Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions.
The american water works association issued its own set of standards specifically for cold water service. American water works association awwa is the worlds largest organization of water supply professionals, representing the entire industry spectrum of treatment plant operators and managers, scientists, environmentalists, manufacturers, academicians, regulators, and utilities. Other types of facings are also available upon request. Similarly, the american water works association awwa a21 committee publishes flange and fitting standards that mate with some of the asme flanges, but are designed for cold water service. From source to storage, from treatment to distribution, awwa standards cover all areas of water treatment and supply. The actuator mounting trunnion is machined and drilled for a 4bolt connection. The waterworksspecific awwa standard flanges have been developed to meet light duty applications, typically requiring performance at or below 300 psi.
Awwa flange standard ansi, class 150 lbs, 300 lbs, 600 lbs, 900. Awwa c207 was developed more recently and applies to steel flanges and fittings. Dimesions of steel ring flanges class d awwa c207 china. If you prefer the hard copy of our awwa flange catalog please contact us and we will send you one. The finish of contact faces of pipe flanges and connecting end flanges of fittings shall be judges by visual comparison with rastandards see ansi, asme b46. The standard ansiawwa c20701 steel pipe flanges for waterworks services covers slipon flanges. Bsflangestandard,bs 3293,bs4504 flange,bs 10 tables d. Pressure ratings for awwa flanges range from the class b flange rated at 86 psi to the class f flange rated at 300 psi. Flanges table, flanges dimensions, flanges standard chart, flanges size chart we export. The elongation percent of awwa c207 class d flange dimensions is around 2 in 18 % and 8 to 14 in frequently used material to produce awwa c207 class b flanges may include the astm a36 or astm a283 plate steels or a105 forged steel or the astm a181 as they meet the requirements of the awwa c207 specification. Awwa about established in 1881, the american water works association is the largest nonprofit, scientific and educational association dedicated to managing and treating water, the worlds most important resource.
Regardless of size or specification, flanges are fundamentally designed to close, cover, connect, or support pipe systems. Ductile cast iron, astm a536, grey cast iron, astm a126. Ring flanges class b, d, e, and f may be overbored or counterbored to accommodate pipes having larger ods. The flange types and the tables that describe them are. Flanges described in the awwa c20701 tables are intended for use with steel pipe, fittings or appurtenances meeting the requirements of ansi awwa c200, ansi awwa c208, astm a4, astm 9, or other equivalent standards. These dimensions are being provided for industry reference. Hub flanges are to be used on pipe that has an od equal to the nominal pipe size in the first column. Awwa flanges are normally supplied as flat faced, unless raised face is specified by customer. Haihao flange factory manufacture awwa c207 class d steel ring flanges in the dimensions dn100dn3600,we supply all types flanges like wn,so,bl flange etc. Steel awwa flanges awwa c207 stainless steel awwa flanges awwa c228 12.