FAQ: Corrosion in Fire Sprinkler Systems

Q: Why does corrosion happen in fire sprinkler systems?

A: Corrosion occurs when oxygen reacts with metal piping and water inside the system, especially in wet, dry, and preaction systems where trapped air is present. Over time, this creates rust, pinhole leaks, and even full system failure.

Q: What problems does corrosion cause?

A: Corrosion can cause:

• Leaks that cause property damage
• Costly pipe replacements
• Failed inspections and system shutdowns
• Decreased system lifespan

Q: How can I tell if corrosion is already happening?

A: Common signs include:

• Discolored water at drain points
• Visible rust on piping
• Leaks or weeping joints
• Air compressor running excessively (in dry/preaction systems)

Q: Who is responsible for preventing corrosion?

A: Building owners and facility managers are responsible for maintaining a corrosion-free system, but designers and contractors can help by recommending long-term solutions like nitrogen-based systems during the design phase.

Q: How does nitrogen help with corrosion?

A: Nitrogen replaces oxygen in the piping, preventing the chemical reaction that causes corrosion. Our Nitrogen-Pac’s are designed to provide dry, pressurized nitrogen for fire protection systems, extending pipe life and reducing maintenance needs.

Q: Is nitrogen better than compressed air?

A: Yes. Compressed air introduces moisture and oxygen, both of which accelerate corrosion. Nitrogen is dry and inert, making it far more effective at preventing internal pipe damage.

Q: How much does corrosion cost a building over time?

A: Corrosion can cost thousands in repairs, not including potential water damage, lost business time, or code violations. Preventing it upfront saves significantly in the long run.

Q: What types of systems benefit most from nitrogen?

A:

• Dry pipe systems
• Preaction systems
• Any system with trapped air or high humidity

Q: Can nitrogen systems be added to existing buildings?

A: Absolutely. Our Nitrogen-Pac’s are designed for both new construction and retrofit projects.