In a fast-evolving industry, Prime Steel Industries remains adaptive, ensuring that its products and services align with the dynamic demands of the market.
Corporate Off: No.6, Ground Floor, 32, Parekh House,
7th Khetwadi, Mumbai – 400004, Maharashtra, India.
Prime Steel stands at the forefront as a distinguished manufacturer and supplier exclusively dedicated to the production of AWWA C207 flanges. Renowned for our unwavering commitment to excellence and precision engineering, we have solidified our position as a trusted name in the industry, delivering high-quality flange solutions that meet and surpass the exacting standards set by the American Water Works Association (AWWA).
Understand AWWA Standards
Material Selection
Pressure and Temperature Ratings
Flange Type and Facing
Size and Dimensions
Coating and Protection
AWWA (American Water Works Association)
4 inches to 144 inches (100 mm to 3,600 mm)
Class B, Class D, Class E, and Class F
Flat Face (FF), Raised Face (RF), Ring Joint Face (RTJ)
Ductile Iron, Carbon Steel
Water Treatment Plants, Pumping Stations, Water Well Systems
The American Water Works Association (AWWA) has established standards for flanges used in water service. AWWA flanges are typically classified based on pressure ratings. The pressure class of AWWA flanges is specified by AWWA C207 standard.
These pressure classes indicate the maximum allowable working pressure for the flanges at various temperatures. It's important to note that these values are specific to AWWA C207 standard, and other flange standards (such as ANSI/ASME) may have different pressure class designations. Always refer to the specific standard and specifications to ensure the correct selection of flanges for a particular application.
The American Water Works Association (AWWA) Flange Standard refers to the standards established by the AWWA for flanges used in water supply systems. AWWA is a professional organization that develops and publishes standards for the water industry to ensure the safe and efficient delivery of water.
AWWA has specific standards for various components used in water infrastructure, including flanges. Flanges are commonly used in piping systems to connect pipes, valves, and other equipment. They provide a method for assembling and disassembling components, as well as facilitating maintenance and repairs.
The AWWA flange standards typically specify dimensions, materials, and performance requirements for flanges used in water treatment plants, distribution systems, and related applications. These standards help ensure interoperability and consistency in the design and construction of water infrastructure components, promoting the reliability and safety of water supply systems.
AWWA C207 Flange - Steel Pipe Flanges for Waterworks Service, sizes 4 in. through 144 in. (100 mm through 3,600 mm): This standard covers slip-on flanges, blind flanges, and threaded flanges. The pressure ratings vary depending on the type and size of the flange.
AWWA C228 Flange - Stainless Steel Pipe Flanges for Water Service - Sizes 2 in. Through 72 in. (50 mm Through 1,800 mm): This standard covers stainless steel flanges for water service, including slip-on flanges, blind flanges, and threaded flanges.
AWWA C115 Flange - Flanged Ductile-Iron Pipe with Ductile-Iron or Gray-Iron Threaded Flanges: This standard covers ductile-iron pipe with threaded flanges suitable for use in water and wastewater systems.
AWWA C200 - Steel Water Pipe, 6 In. (150 mm) and Larger: This standard covers the manufacturing and testing of steel water pipe with diameters 6 inches and larger. It includes requirements for materials, welding, and coatings.
AWWA C600 - Installation of Ductile-Iron Water Mains and Their Appurtenances: This standard provides guidelines for the installation of ductile-iron water mains, including jointing methods, backfilling, and testing.
AWWA D100 - Welded Steel Tanks for Water Storage: AWWA D100 outlines design, construction, and maintenance criteria for welded steel tanks used for water storage.
AWWA C504 - Rubber-Seated Butterfly Valves: This standard covers the design, materials, testing, and performance of rubber-seated butterfly valves used in water supply service.
AWWA M55 - PE Pipe - Design and Installation: AWWA M55 focuses on polyethylene (PE) pipe used in water distribution systems, providing guidelines for design, materials, and installation.
AWWA C651 - Disinfecting Water Mains: This standard outlines procedures for disinfecting water mains and appurtenances, ensuring the delivery of safe drinking water.
AWWA C900 - Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4 In. Through 12 In. (100 mm Through 300 mm): AWWA C900 specifies requirements for PVC pressure pipe and fabricated fittings in sizes ranging from 4 inches to 12 inches.
AWWA C207 flanges are steel pipe flanges that adhere to the specifications outlined in the American Water Works Association (AWWA) standard C207. This standard, titled "Steel Pipe Flanges for Waterworks Service - Sizes 4 In. Through 144 In. (100 mm Through 3,600 mm)," provides guidelines for the design, dimensions, materials, testing, inspection, and marking of steel pipe flanges used in waterworks service. When working with these flanges, it is important to consult the specific edition of the AWWA C207 standard to ensure adherence to the latest industry guidelines and requirements.
Check AWWA Flange Standard Dimensions Download
AWWA C110: Ductile-Iron and Gray-Iron Fittings
Scope: AWWA C110 covers ductile-iron and gray-iron fittings for water and wastewater applications. These fittings are used in conjunction with ductile-iron pipe and fittings.
Types of Fittings: The standard includes various types of fittings such as bends, tees, crosses, reducers, caps, etc., made of ductile iron or gray iron.
Pressure Rating: The fittings covered by AWWA C110 are typically designed for pressure service and are rated for specific pressure classes.
Applications: These fittings are commonly used in water distribution systems and wastewater treatment plants.
AWWA C207: Steel Pipe Flanges for Waterworks Service
Scope: AWWA C207 specifically addresses steel pipe flanges for waterworks service. It provides specifications for various types of flanges, including ring-type, hub-type, and blind flanges.
Flange Types: The standard covers flanges with different facings (flat face, raised face) and different designs to accommodate various applications.
Pressure Rating: AWWA C207 flanges are designed to meet specific pressure-temperature ratings for water service.
Applications: These flanges are used in water supply systems and related applications where steel pipe connections are required.
NPT (National Pipe Thread):
Usage: NPT threads are commonly used in the United States for general-purpose pipe connections, especially in applications involving water, air, and other fluids.
Tapered Threads: NPT threads are tapered, which means the diameter of the threads increases or decreases along the length of the pipe. The taper helps create a seal when the threads are tightened.
Standard Angle: NPT threads have a standard thread angle of 60 degrees.
Sealant: It is common to use thread sealant, such as Teflon tape or pipe dope, when assembling NPT threaded connections to ensure a tight seal.
AWWA (American Water Works Association) Threads:
Usage: AWWA threads are often used in waterworks applications, particularly in pipes and fittings associated with water supply systems.
Straight Threads: AWWA threads are straight threads, meaning the diameter remains constant along the length of the pipe. This is different from the tapered design of NPT threads.
Standard Angle: AWWA threads typically have a thread angle of 55 degrees.
Sealant: AWWA threads often require a gasket or other sealing mechanism to ensure a proper seal. Unlike NPT threads, they do not rely on taper for sealing.
AWWA Flanges:
Scope: AWWA flanges are primarily designed for use in water and wastewater applications. The standards provided by AWWA are specific to the water industry, including water treatment plants, distribution systems, and related infrastructure.
Materials: AWWA flanges are often designed for use with materials common in water systems, such as ductile iron.
Pressure Classes: AWWA flanges typically use pressure classes specific to water industry needs, such as classes 150, 300, etc.
Standard: AWWA C207 is a common standard for steel pipe flanges used in the water industry.
ANSI Flanges:
Scope: ANSI flanges are more generic and cover a broader range of industries and applications. ANSI standards are used in various fields, including oil and gas, chemical, petrochemical, and many other industrial applications.
Materials: ANSI flanges are designed to accommodate a wide range of materials, and the standard provides specifications for various types of flanges, including those made of carbon steel, stainless steel, and other alloys.
Pressure Classes: ANSI flanges are available in a variety of pressure classes, such as 150, 300, 600, and more, to meet the requirements of different industries.
Standards: ANSI B16.5 is a common standard for pipe flanges and flanged fittings in general industrial applications.
