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Differences between PVC and CPVC

When selecting materials for piping systems, it’s crucial to understand the differences between PVC and CPVC, two popular options due to their versatile properties and applications. Although both share characteristics such as corrosion resistance and ease of installation, each has its own specific features that make it more suitable for certain projects. 


In this blog, we will explore the key differences between PVC and CPVC in detail, from their composition and temperature resistance to their common applications and costs, to help you make an informed decision in your next construction or renovation project.



pvc and cpvc

Feature

PVC

CPVC

Composition

Polyvinyl chloride

Chlorinated polyvinyl chloride

Maximum operating temperature

Approximately 60°C

Approximately 90°C

Corrosion resistance

Hight

Hight

Cost

Generally more economical

Generally more economical

Color

Gray or white

Beige, cream, or white

Flexibility

Moderate

Less flexible than PVC

Common applications

Cold water systems, drainage, and ventilation systems

Hot and cold water systems, industrial applications

Chemical resistance

Good, but less than CPVC

Excellent chemical resistance

Ease of installation

Yes, lightweight and easy to handle

Yes, but requires more precautions

Durability

Long life in suitable environments

Long life, especially in high-temperature applications

Lifespan

Long lifespan under normal conditions

Long lifespan, especially in high-temperature conditions

Similarities between PVC and CPVC


  • Both materials are resistant to corrosion and many chemicals.

  • Both are lightweight and relatively easy to install.

  • Both are used in piping systems for transporting liquids.

  • Both require specific adhesives for joining pipes and fittings.


pvc

Differences between PVC and CPVC


  • CPVC can handle higher temperatures than PVC.

  • CPVC has greater chemical resistance and is suitable for hot water applications.

  • The cost of CPVC is typically higher due to its ability to handle higher temperatures and its greater chemical resistance.

  • CPVC is colored differently, usually to distinguish it from PVC and to indicate its suitability for hot water handling.



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