Designed to provide on-site, high purity nitrogen for use in dry pipe & pre-action fire sprinkler systems
General Air Products Nitrogen Generators are fully tested and assembled, turn-key packages ready to be connected to a new or existing fire sprinkler system.
Each Nitrogen Generator includes a fire protection air compressor specifically designed to fill the sprinkler system to supervisory pressure within 30 minutes per NFPA 13, as well as all air filtration equipment, nitrogen membranes and tanks required to keep the generator operating at peak efficiency.
General Air Products Nitrogen Generator Systems provide a reliable and efficient method of producing a minimum of 98% nitrogen at the point of usage which will slow corrosion, improve the life of the system and lower maintenance costs. All this is backed by the best lifetime customer service and technical support in the industry.
Not sure if a nitrogen generator 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 General Air Products nitrogen generator, accessories, and technical documentation.
- Find the right nitrogen generator 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
Based on your selections
What will supervise your system(s)?
How will the nitrogen generator be mounted?
What are your electrical requirements?
The ideal air supply depends on your application: compressed air for general use, dry air for cold storage to prevent freezing, and Vapor Pipe Shield or Nitrogen Generators for corrosion mitigation.
Filter replacement and other maintenance should be preformed annually. Annual maintenance kits for each model can be purchased through distributors or directly on our website. Unsure what maintenance kit you need?
Look for the UL 1450, Supplement Most corrosion in dry pipe sprinkler systems is caused by the combination of 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 minimize the oxygen content. SC listing label (red sticker) on the unit to confirm compliance.
If you experience issues with your nitrogen generator, contact General Air Products technical support at 1-800-345-8207 or through our online chat feature in the lower right corner of this page for expert assistance - from a real live person, we promise 🙂
All General Air Products fire protection products include a standard 1-year manufacturer warranty. Contact us or refer to product manuals for full warranty details.
Replacement parts are available through authorized distributors or directly from General Air Products at the bottom of each specific model 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.
Riser-mounted compressors save space, while tank-mounted compressors are required for systems serving multiple risers per NFPA 13 (2025) 8.2.7.5.1.
A nitrogen generator isn’t the only option for a dry pipe or pre-action system, the right choice depends on what you’re solving for. Standard compressed air works for systems with no freezing or corrosion concerns, a Dry Air Pac removes moisture to prevent ice plugs in cold storage and freezer applications, and Vapor Pipe Shield prevents corrosion using a vapor corrosion inhibitor instead of displacing oxygen.
Vapor Pipe Shield is the most common nitrogen alternative for corrosion protection specifically: it’s a passive, mechanical system with no ongoing filter or membrane maintenance, and typically costs one-third to one-half as much as an equally sized nitrogen generator.
Nitrogen generator pricing depends on system size and mounting type. General Air Products offers three tiers: Wall Mount units for systems up to 600 gallons, Standard floor-mount units for systems up to 2,350 gallons, and PSA units for higher-flow applications with frequent nitrogen demand.
Total cost includes more than the generator itself: installation, the required Air Maintenance Device, and annual filter and membrane maintenance kits all factor into the total investment. Use the Build Your Air Supply tool to find the system that best fits your needs and for a quote please reach out to our team.
ANNUAL MAINTENANCE REMINDERS
Do you know when your Fire Protection Nitrogen Generator is due for maintenance?
Fire Sprinkler System Training
The National Fire Sprinkler System Training Center at General Air Products is located in Exton, Pennsylvania. This NICET recognized training facility is state-of-the-art and features fire sprinkler products from several manufacturers in the fire protection industry allowing attendees to get hands-on with a variety of live equipment. We also offer virtual training and webinars online.