Red Seal Steamfitter/Pipefitter Practice Exam

What is a key advantage of using CPVC pipes compared to metal pipes?

1. Higher durability

2. Greater thermal conductivity

3. Lightweight and corrosion resistance

4. Lower installation cost

The correct answer is: Lightweight and corrosion resistance

Using CPVC pipes offers a significant advantage in terms of being lightweight and corrosion resistant. CPVC, or chlorinated polyvinyl chloride, is a type of thermoplastic that is significantly lighter than metal pipe options, making it easier to handle and install, especially in complex piping systems. This reduced weight can lead to lower labor costs as workers can manage larger lengths of piping without the need for heavy lifting equipment or additional manpower. Another critical factor is corrosion resistance; CPVC does not corrode like metal pipes, particularly when exposed to certain chemicals or environments that might otherwise lead to rusting or degradation in metal systems. This attribute means that CPVC can maintain its structural integrity over time, resulting in a longer lifespan for the piping system and reducing the need for frequent replacements. This combination of lightweight and corrosion resistance makes CPVC pipes particularly advantageous in various plumbing and industrial applications, where both ease of use and long-term reliability are essential considerations.