Pressure Class vs Thickness Class: What's the Difference?

Описание: Selecting the correct Ductile iron pipe class depends on several conditions, including internal pressure load, trench type, ground cover depth, and other factors. For this reason, McWane Ductile manufactures pipe in both Pressure and Thickness Classes to get the exact pipe you need for a durable and reliable system. Standard Thickness Classes, also known as Special Classes, were the original standard for ductile iron pipe, the most common being C50 to C56. A C56 pipe can be between 40% to more than 60% thicker walled than a C50 pipe, depending on its diameter. Therefore, a C56 pipe buried in the correct trench type will continue to perform under many feet of fill (Over 100 feet for a 4-inch pipe and up to 54 feet for a 36-inch pipe). On the other hand, Pressure Class pipe are easily identified by their rated working pressures, 150 up to 350 psi. The pipe wall thickness increases as the pressure rating of the pipe increases. A pipeline using C150 pipe may experience savings on materials and pumping cost but may also have a lower working pressure and need additional support in trench design.

To learn more please read our blog about the difference between Pressure and Thickness Class pipe.
https://www.mcwaneductile.com/blog/wh...


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