Does TOTALPAC N2 comply with NFPA guidance, and when should I choose nitrogen?
TOTALPAC N2 combines preaction protection with nitrogen generation. Choose it when corrosion reduction, long-term reliability, and freezing-area performance are important design priorities.
Choose TOTALPAC N2 when the project needs both preaction logic and nitrogen-based corrosion management.
What the option means
TOTALPAC N2 combines the preaction Integrated Fire Protection System with a nitrogen generating system in a single cabinet. The nitrogen side is intended to reduce internal pipe corrosion and support long-term system reliability.
When to choose it
- corrosion reduction is a project priority,
- the owner wants better long-term piping condition,
- the project includes dry or preaction style piping,
- the specification supports nitrogen-based supervisory gas.
Compliance point customers ask about
FireFlex documentation states the PSV-D SMART vent provides a low-volume purge and that the gas evacuation rate is within NFPA guidelines and allows breathing to occur.
That matters because nitrogen systems must be applied in a way that supports both performance and code-consistent system operation.
Option meaning
Single interlock with nitrogen
Choose for faster detection-based fill with added corrosion-control benefit.
Double interlock with nitrogen
Choose when accidental water entry must be minimized and corrosion control is also required.
FIRECYCLE III or SUREFIRE release with nitrogen
Choose these only when the project specifically needs those release technologies and their compatible detection/control logic.
Frequently Asked Questions
Does nitrogen replace code requirements for sprinkler design?
No. Nitrogen supports supervisory gas and corrosion management. The sprinkler or preaction design still has to comply with the applicable code and manufacturer instructions.
Is nitrogen mainly about corrosion?
Yes. That is one of the main reasons customers choose TOTALPAC N2.
Can nitrogen help after hydrostatic testing?
Yes. FireFlex documentation notes the vent arrangement assists in drying residual water from hydrostatic testing.