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.
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.
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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