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How do you stop corrosion in wet pipe fire sprinkler systems?

wet fire sprinkler system

Typical WPNI configuration

Engineered Corrosion Solutions offers automatic air vents to reduce corrosion and utilizes Wet Pipe Nitrogen Inerting (WPNI) to eliminate corrosion in fire sprinkler systems. Both approaches are based on minimizing trapped oxygen gas in wet pipe fire sprinkler systems.

An automatic air vent will exhaust as much trapped air (containing corrosive oxygen) as possible from the vent location. WPNI provides a higher level of corrosion protection by displacing oxygen with nitrogen gas inside wet pipe fire sprinkler systems. Any trapped gas remaining in the system after the WPNI process is completed is no longer corrosive.

What equipment is needed for WPNI?

Three essential components are required:
  1. An FM Approved integral venting device to remove oxygen
  2. An injection port to deliver nitrogen to the system
  3. A source of nitrogen gas (nitrogen generator or cylinders)

Download our Wet System Product Selection Guide to determine the right equipment for your project.

Advantages of the ECS WPNI Solution

As the technology leader in the fire sprinkler industry, Engineered Corrosion Solutions provides a corrosion control system that offers distinct advantages over simply purchasing equipment from a product manufacturer:
  • Patented “fill and purge” breathing for complete gas exchange is the most effective method to completely remove oxygen
  • The simplest, safest and most efficient means for stopping oxygen corrosion in wet pipe systems – no need for expensive and time-consuming water treatment processes
  • FM Approved vent with redundant design does not require plumbing to drain
  • More than five (5) years of field experience in deploying WPNI technology and eliminating corrosion

Defend your fire sprinkler system against leaks

  All wet pipe fire sprinkler systems trap oxygen. Oxygen creates corrosion. Corrosion creates leaks and leaks create problems. These aren’t theories or myths. They’re science. And science provides a solution. Remove the oxygen and you correct the problem.

Engineered Corrosion Solutions solves problems. Using chemistry and physics as its foundation, ECS delivers true solutions for corrosion challenges in dry pipe fire sprinkler systems. We prevent leaks from ever happening. Our solutions are based on science and the results are dramatic.

Nitrogen is Proven, Safe, and Effective

  After successfully deploying nitrogen based technology for corrosion control in dry pipe sprinkler systems, Engineered Corrosion Solutions introduced Wet Pipe Nitrogen Inerting technology to the fire sprinkler industry in 2010 and since that time it has been used to treat hundreds of fire sprinkler systems. In almost all instances there is no re-occurrence of leaks.

Wet Pipe Nitrogen Inerting is completely safe and fully compatible with all fire sprinkler system components. Unlike chemical additives or biocides, nitrogen will not degrade any system materials. Nitrogen is non-toxic and non-hazardous so it does not pose an exposure risk to building occupants or fire service personnel.

Engineered Corrosion Solutions saves fire sprinkler systems that have been damaged by corrosion and stops leaks from reoccurring. Wet Pipe Nitrogen Inerting results in up to 99% reduction in corrosion activity which substantially increases the service life of the fire sprinkler system and reduces associated corrosion risks.

ECS Nitrogen Inerting Vent (PAV-WN) and injection port facilitates WPNI process