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By: Corzan on Jun 18, 2021 1:33:21 PM
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Why Use CPVC in Wastewater Treatment Plants?

The following is an excerpt from “CPVC Use in Wastewater Treatment Plants.” Download the full ebook to learn more about where CPVC can be installed in wastewater treatment plants, which chemicals CPVC stands up against and how CPVC compares to alternatives in various applications.

Wastewater treatment plants are extremely corrosive environments.

During the treatment process, large vessels and piping systems convey polluted water and highly corrosive and caustic chemicals. To keep wastewater treatment plants efficient and cost-effective, appropriate material selection is critical.

Corrosion to pipes, valves and fittings caused by chemicals and microbes can greatly impact the bottom line at water and wastewater treatment plants. As a result, engineers and procurement officials turn to an economical, reliable material—chlorinated polyvinyl chloride (CPVC). 


Advantages of CPVC for Wastewater Treatment Plants 

CPVC is a high-performance industrial piping material specially engineered to meet the demands of wastewater treatment plants. CPVC is preferred because of its reliability and better performance for an extended service life.

Specific advantages of CPVC:

  • Significantly lowers life-cycle costs over metallic systems and requires significantly less maintenance than less expensive plastics
  • Eliminates internal and external corrosion caused by many corrosive chemicals
  • Blocks the degrading effects of chemicals, microorganisms and UV light
  • Ensures optimal flow rates with excellent hydraulic capabilities and pressure ratings up to 200°F (93.3°C)—nearly 80°F (45°C) higher than PVC
  • Achieves long-term performance with superior mechanical strength, and Corzan® CPVC has the highest impact resistance (24448 cell class up to 8-in. diameter, as defined by ASTM-D1784) of any CPVC pipe compound
  • Comes in diameters up to 24-in (check with each manufacturer)
  • Reduces installation time with a lightweight design (1/8 the weight of steel) and joining systems that eliminate the need for torches or complicated heat-fusion techniques
  • Decreases total installation costs attributed to lower material costs and installation time, as compared to metallic alternatives
  • Meets and exceeds regulatory requirements, including smoke and flame resistance and NSF International standards for potable water safety


CPVC Improves Installation Time and Reliability

Installation cost and time can sometimes account for more than half of the total cost of a system.

Compared to metals, CPVC cuts installation costs and time significantly due to the following advantages:

  • No need for a designated welding area
  • No costly hot work permits
  • Does not require an experienced, certified welder
  • No need for heavy and expensive equipment
  • Lighter and easier to move and secure

CPVC is typically installed through a simple step-by-step solvent cement joining process. With solvent cement, the pipe and fitting fuse together at the molecular level, forming a uniform piece of material. Where other materials are often vulnerable, CPVC solvent cemented joints are often the strongest part of a system, translating to greater reliability, fewer repairs and a longer service life. In addition, ASME B31.3 bonder training is available and recommended for all installers.


Choose Corzan® CPVC for Your Wastewater Treatment Plant

For dealing with the potentially corrosive and high temperature environment of a wastewater treatment facility, know that not all CPVC is equal.

When compared to other CPVC brands, Corzan CPVC testing confirms better consistency and performance in terms of: 

  • Minimum burst pressure requirements
  • Dimensional tolerances
  • Residual stress requirements
  • Drop impact requirements
  • Fusion property testing

Corzan Industrial Systems has a proven track record of dependable service in wastewater treatment plants. Our material provides an excellent balance of properties to improve reliability and user confidence. It reduces capital and life-cycle costs, and, most importantly, allows wastewater treatment plants to avoid unnecessary shutdowns and stay more productive.


Learn More About CPVC Use in Wastewater Treatment Plants

Interested in learning more? Download the free ebook, CPVC Use in Wastewater Treatment Plants.

In this ebook, you’ll also discover:

  • Corzan CPVC’s compatibility with the chemicals used in the wastewater treatment process
  • Where CPVC can be used within a wastewater treatment plant’s primary treatment process
  • How CPVC piping can improve the secondary treatment process