Table 5 in AWWA C207-18 provides specifications for Class E ring flanges. AWWA C207-18 is a standard published by the American Water Works Association (AWWA) that sets the guidelines for steel pipe flanges used in waterworks systems.
Class E ring flanges are designed for use in water distribution systems with higher pressure requirements. These flanges are typically used in water treatment plants, wastewater facilities, and municipal water supply networks where the operating pressures are more demanding.
Table 5 specifies various dimensions for Class E ring flanges, including bolt circle diameter, number of bolt holes, bolt hole diameter, flange thickness, hub length, and facing dimensions. These specifications ensure that the flanges are manufactured to the required standards and guarantee proper alignment and sealing when connected to piping systems.
Class E ring flanges are typically manufactured from carbon steel or stainless steel to ensure durability and corrosion resistance in water applications. The flanges are designed to provide a reliable and leak-free connection between pipes, valves, and fittings in high-pressure waterworks applications.
In summary, Class E ring flanges as defined in Table 5 of AWWA C207-18 are critical components in water distribution systems, providing a strong and secure connection for piping infrastructure in water treatment plants, wastewater facilities, and municipal water supply networks, especially in applications where higher pressures are present.
