Vapor Pipe Shield™, Your Most Powerful Shield Against Corrosion
Vapor Pipe Shield™ is a patented, fully mechanical UL-listed solution that prevents corrosion in dry-pipe and pre-action fire sprinkler systems using proven VpCI® technology.
How it works
Installed in-line between the air compressor and dry pipe valve, it uses airflow to distribute VpCI® molecules throughout the system, forming a one-molecule-thick protective barrier on internal pipe surfaces to guard against corrosion.
For large orders & exact lead times, please consult factory.
Find this unit in stock with one of our Distributors near you:
Trusted by leading brands
Model Number | Fill Capacity (Largest Riser) | Total Capacity (Max 4 Systems) | Order Maintenance Kit | Engineering Submittal Package | Cut Sheet |
|---|---|---|---|---|---|
500 gal. | 2000 gal. |  |  |  | |
1000 gal. | 4000 gal. | | | | |
1500 gal. | 6000 gal. | | | | |
2000 gal. | 8000 gal. | | | |
Click on the model numbers to find additional product information.
Explore Vapor Pipe Shield™ Resources
Everything you need – white papers, case studies, installation guides, compliance standards, and maintenance best practices.
Summary of third-party findings (UL, EPA, OSHA) on the safety and effectiveness of Cortec Corporation's VpCI®-308 Pouch in the Vapor Pipe Shield™ system for dry and pre-action sprinkler systems.
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30-month evaluation shows VCIs reduce corrosion far more effectively than nitrogen and compressed air.
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Impact Fire Services uses VPS to extend dry system lifespans in Pennsylvania, cut maintenance costs, and prevent failures.
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Since June 2024, Rockridge Fire Protection has installed Vapor Pipe Shield™ (VPS) units in 18 CubeSmart storage facilities in Las Vegas, offering a cost-effective solution to prevent corrosion in aging dry pipe sprinkler systems.
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The Trenton, New Jersey Recycling Center's dry system suffered frequent corrosion, but Vapor Pipe Shield™ provided long-term protection and eliminated constant pipe replacements.
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The study evaluates nitrogen purge methods, showing that even 90% pure nitrogen cannot fully penetrate dry and pre-action sprinkler systems.
Learn MoreQuick & Easy Installation
Vapor Pipe Shield™ is as easy to install as an Air Maintenance Device. It’s fully mechanical, has no electrical connections, and is simple to service.
System Layout
Mounting & Piping
System Start Up
Compatible With Both Tank & Riser Mount Air Supplies
Tested and Proven
Our 1,000 Gallon Sprinkler System Test Rig in our warehouse in Exton, PA was designed specifically to test the viability – and ultimately the effectiveness – of VpCI® to prevent corrosion in Fire Sprinkler Systems. Over the years, we’ve run hundreds of documented tests – both independently and in conjunction with 3rd parties – that have resulted in Vapor Pipe Shield™’s engineered design and UL Listing.
Extending Your Warranty
Register your Vapor Pipe Shield® Unit
By registering your Vapor Pipe Shield™ Unit, you’ll receive an Extended 3-Year Manufacturer’s Warranty. Plus – you’ll receive Annual Maintenance Reminders when your Vapor Pipe Shield® is due for maintenance, along with a link to easily order the proper Maintenance Kit for your Vapor Pipe Shield® model.
You’ll just need your unit’s Serial Number – so locate it as seen on the model below, fill out the Registration Form and immediately receive your Extended Warranty via email.
Not sure if Vapor Pipe Shield™ is right for your system?
Answer a few simple questions about your sprinkler system and our Air Supply Builder will help you find the right Vapor Pipe Shield™ configuration, accessories, and technical documentation.
- Find the right Vapor Pipe Shield™ model for your system
- Download the corresponding cut sheet
- Copy and paste a ready-to-use specification
Build the right air supply for your dry or pre-action sprinkler system
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Corrosion in dry pipe sprinkler systems is caused by oxygen and moisture. It can be prevented by using corrosion inhibitors like those used in Vapor Pipe Shield, or by supplying the system with nitrogen to eliminate oxygen.
Vapor Corrosion Inhibitors are molecules that are electromagnetically attracted to metal. As they attract to the metal they adsorb to it, creating a molecular barrier preventing water and other corrosive elements in the system from contacting the pipe directly, preventing corrosion.
Recent testing has proven Vapor Corrosion Inhibitors to be over 30x more effecive in preventing corrosion than 98% purity nitrogen. Read the full White Paper for more information and details on the results and on how this testing was preformed.
Vapor Pipe Shield is permanently installed on the air line of the dry or pre-action sprinkler system to provide continuous corrosion protection.
In most applications, Vapor Pipe Shield is between 1/3 and 1/2 the cost of an equally sized nitrogen generator for dry and pre-action fire sprinkler systems.
If you experience issues with your Vapor Pipe shield, contact General Air Products technical support at 1-800-345-8207 or through the chat feature in the lower right corner for expert assistance - from a real live person, we promise 🙂
All General Air Products Vapor Pipe Shields include a standard 1-year manufacturers warranty. Contact us for or refer to product manuals full warranty details. When you register your Vapor Pipe Shield unit you will receive a 3 year Extended Warranty.
Replacement parts for Vapor Pipe Shield are available through authorized distributors or directly from General Air Products, at the bottom of each product page. Contact technical support at 1-800-345-8207 or through the chat feature in the lower right corner if you need help identifying parts.