{"id":2905,"date":"2025-05-09T15:23:10","date_gmt":"2025-05-09T07:23:10","guid":{"rendered":"https:\/\/www.ductileironsuppliers.com\/?p=2905"},"modified":"2025-05-30T13:56:35","modified_gmt":"2025-05-30T05:56:35","slug":"awwa-c151-ductile-iron-pipe-sizes-and-price","status":"publish","type":"post","link":"https:\/\/www.ductileironsuppliers.com\/ar\/awwa-c151-ductile-iron-pipe-sizes-and-price.html","title":{"rendered":"\u0645\u0642\u0627\u0633\u0627\u062a \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 C151 AWWA C151 \u0648\u0623\u0633\u0639\u0627\u0631\u0647\u0627"},"content":{"rendered":"

The American Water Works Association (AWWA) C151 standard specifies the requirements for ductile iron pipes used in potable water, raw water, wastewater, and reclaimed water systems.<\/span> These pipes are centrifugally cast and are designed to meet the rigorous demands of modern water infrastructure.<\/span><\/p>\n

Ductile iron pipes are favored for their strength, durability, and resistance to corrosion, making them suitable for various applications, including municipal water distribution and industrial systems.<\/span><\/p>\n

\"AWWA<\/a>
AWWA C151 Ductile Iron Pipe<\/figcaption><\/figure>\n

1. Standard Sizes and Dimensions<\/h2>\n

AWWA C151 ductile iron pipes are available in nominal sizes ranging from 3 inches to 64 inches (76 mm to 1,600 mm).<\/span> The external diameter remains consistent across different wall thicknesses to ensure compatibility with joints and fittings.<\/span><\/p>\n

\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Size (inches)<\/th>\nExternal Diameter (inches)<\/th>\n<\/tr>\n<\/thead>\n
3<\/td>\n3.96<\/td>\n<\/tr>\n
4<\/td>\n4.80<\/td>\n<\/tr>\n
6<\/td>\n6.90<\/td>\n<\/tr>\n
8<\/td>\n9.05<\/td>\n<\/tr>\n
10<\/td>\n11.10<\/span><\/td>\n<\/tr>\n
12<\/td>\n13.20<\/span><\/td>\n<\/tr>\n
14<\/td>\n15.30<\/span><\/td>\n<\/tr>\n
16<\/td>\n17.40<\/span><\/td>\n<\/tr>\n
18<\/td>\n19.50<\/span><\/td>\n<\/tr>\n
20<\/td>\n21.60<\/span><\/td>\n<\/tr>\n
24<\/td>\n25.80<\/span><\/td>\n<\/tr>\n
30<\/td>\n32.00<\/span><\/td>\n<\/tr>\n
36<\/td>\n38.00<\/span><\/td>\n<\/tr>\n
42<\/td>\n44.00<\/span><\/td>\n<\/tr>\n
48<\/td>\n50.00<\/span><\/td>\n<\/tr>\n
54<\/td>\n56.00<\/span><\/td>\n<\/tr>\n
60<\/td>\n62.00<\/span><\/td>\n<\/tr>\n
64<\/td>\n66.00<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

These dimensions are standardized to ensure uniformity and compatibility across different manufacturers and installations.<\/span><\/p>\n

2. Pressure Classes and Thickness Design<\/h2>\n

Ductile iron pipes under AWWA C151 are classified based on their pressure rating and wall thickness.<\/span> The pressure classes range from 150 psi to 350 psi, indicating the maximum internal pressure the pipe can withstand.<\/span><\/p>\n

\n
\n\n\n\n\n\n\n\n\n\n
Pressure Class (psi)<\/th>\nWall Thickness (inches)<\/th>\n<\/tr>\n<\/thead>\n
150<\/td>\n0.25<\/td>\n<\/tr>\n
200<\/td>\n0.31<\/td>\n<\/tr>\n
250<\/td>\n0.38<\/td>\n<\/tr>\n
300<\/td>\n0.44<\/td>\n<\/tr>\n
350<\/td>\n0.50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

The wall thickness is designed to accommodate internal pressures and external loads, ensuring the pipe’s structural integrity under various conditions.<\/span><\/p>\n

3. Coatings and Corrosion Protection<\/h2>\n

To enhance the longevity of ductile iron pipes, various coatings are applied to protect against corrosion.<\/span> The most common coatings include:<\/span><\/p>\n