What is the c-value of new polyvinyl chloride pipe?

The c-value, or roughness coefficient, for new polyvinyl chloride (PVC) pipe is primarily determined by its smooth interior surface. For new PVC pipe, the c-value is typically around 150. This high c-value reflects the low friction losses encountered when water flows through this type of pipe, making it efficient for transporting water in various applications, such as municipal water systems and irrigation setups.

Understanding the c-value is crucial because it influences the calculations for flow rates and pressure losses within the piping system. A higher c-value indicates smoother pipe surfaces, which lead to less turbulence and lower energy costs for pumping water. This is why the c-value of new PVC pipe is a critical consideration in the design and operation of water treatment systems.