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FAQs: Corzan® CPVC for Data Center Systems

Mission-critical facilities like data centers depend on constant uptime for productivity and reliability. Failures or trouble in any part of the piping system can be devastating to operations. Supporting mission-critical data centers with a reliable piping material like Corzan® CPVC can eliminate the corrosion risks that often lead to downtime. Here are some of the most frequently asked questions about CPVC in this industry. If you have additional questions or would like more information, please contact us to be connected with one of our piping material experts.

1. What piping materials support high-temperature cooling water loops in data centers?

When piping high-temperature cooling water loops in data centers, specifying engineers often choose stainless steel or a high temperature-rated plastic like CPVC. Corzan CPVC is rated up to 200°F (93.3°C), pressure-dependent and resists corrosion, including microbiologically-influenced corrosion (MIC). Older data center piping systems may use carbon steel, but this material is susceptible to corrosion, pitting and scaling. Some lower-temperature systems may choose thermoplastics like polyvinyl chloride (PVC). However, these materials have lower temperature-handling capabilities than Corzan CPVC and stainless steel.

2. Can CPVC be used for chilled water or condenser systems in data centers?

 A high-quality CPVC, such as Corzan CPVC, is an excellent choice for chilled water or condenser systems in data centers due to its inherent resistance to all types of water in addition to its broad chemical resistance. Like all plastics, CPVC also has a smooth inside diameter that has a lower potential for scaling and biofilm formation compared to metals. 

3. How does piping choice impact uptime and reliability in data centers?

 Piping choice can significantly impact uptime and reliability in data centers, as a piping failure can result in a major outage. A repair or replacement of failed piping will mean at least hours and up to days of downtime, a catastrophe in mission-critical facilities. Choosing a resilient, long-lasting, compatible piping material can minimize the downtime risks associated with corrosion, chemical incompatibility and leaks. Corzan CPVC has predictable performance over the life cycle that can mean less unplanned maintenance for data centers. 

4. What corrosion-resistant materials are used in data center cooling infrastructure?

Data centers use a range of corrosion-resistant materials in cooling systems, including stainless steel, lined steel, fiber-reinforced plastic (FRP), and thermoplastics such as CPVC. Material selection depends on how well each option performs under varying water quality conditions, chemical treatment programs and long-term operational demands.

Because cooling systems run continuously, material degradation can compromise efficiency and increase the risk of leaks or failures over time. Unlike metal systems that rely on protective layers or strict water chemistry control, Corzan CPVC offers strong resistance to many corrosive environments and is not susceptible to rust or scale formation. Its performance, however, depends on proper material selection based on chemical compatibility. Corzan CPVC provides extensive testing and documentation to help ensure the chosen system aligns with the specific chemicals and conditions present, supporting long-term reliability in critical cooling infrastructure. 

5. Is CPVC compatible with glycol-based cooling fluids?

Yes, CPVC is compatible with glycol-based cooling fluids within stated concentration limits. Corzan CPVC has decades of success with antifreeze mixtures for HVAC system chemicals such as:

  • Propylene glycol (up to 35% concentration)

  • Ethylene glycol (up to 50% concentration)

  • Glycerin-based (fully compatible)