Mission-Critical Nitrogen™ Generators for Dry Fire Protection Systems
Protect your investment
Sprinkler systems have one job, and failure to perform has catastrophic consequences. While a well-maintained sprinkler system protects your people and your property; corrosion compromises that safety, rendering over 50% of dry systems to not operate as intended after only 10 years.
Protecting your new system or retrofitting your existing system with nitrogen protects against corrosion, adding decades to the life of your sprinkler system, reducing costly replacements, maximizing system safety and delivering greater confidence in optimal system performance over time.
Protection is a long game; we help you go beyond “what works” to help you achieve what’s right.
KEY FEATURES
South-Tek System’s N2 Blast nitrogen generator inhibits the risk of corrosion build up, which restricts water flow and can render a system inoperable. The South-Tek solution ensures your sprinkler system works when you need it.
Inhibits multiple causes of in-pipe corrosion and ice buildup
Peace of mind with remote monitoring (select models)
Touchscreen control display for easy handling
Accommodates new system installs or existing system retrofits to extend system life
Manufactured, with pride, Wilmington, NC, USA
N2Blast Corrosion Inhibiting Nitrogen-generated Dry Sprinkler Systems
N2Blast 500
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N2BLAST 500
- For up to 500 gal. of total sprinkler pipe capacity
- Optional STS-NF-QF-2 air compressor available for quick-fill operation (635 gal. @ 40 PSI)
- Integrated air compressor (not intended for quick-fill)
- 28 gal. nitrogen receiver tank
- DOWNLOAD MANUAL
- DOWNLOAD SPEC SHEET
- DOWNLOAD DRAWING
- DOWNLOAD FPS-500 PARTS CATALOG
- Compressor Assembly
- Cabinet Assembly
- Electrical Assembly
- Filter Assembly
- Pressure Switch Assembly
- Sieve Bed Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2Blast 900
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N2BLAST 900
- For up to 900 gal. of total sprinkler pipe capacity
- Optional STS-NF-QF-2 air compressor available for quick-fill operation (635 gal. @ 40 PSI)
- Integrated air compressor (not intended for quick-fill)
- 28 gal. nitrogen receiver tank
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-900 PARTS CATALOG
- Cabinet Assembly
- Compressor Assembly
- Electrical Assembly
- Filter Assembly
- Pressure Switch Assembly
- Sieve Bed Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2Blast 1650
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N2BLAST 1650
- For up to 1,650 gal. of total sprinkler pipe capacity
- Optional STS-NF-QF-2 air compressor available for quick-fill operation (635 gal. @ 40 PSI)
- Integrated air compressor (not intended for quick-fill)
- Integrated nitrogen receiver tank
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-1650 PARTS CATALOG
- Auto Bypass Assembly
- Cabinet Assembly
- Compressor Assembly
- Filter Assembly
- Outlet Assembly
- Sieve Bed Assembly
- Sieve Bed Assembly
- Tank Assembly
- Unitronics Electrical Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2BLAST 3250
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N2BLAST 3250
- For up to 3,250 gal. of total sprinkler pipe capacity
- Integrated Air Dryer and N2 receiver tank
- Requires separate feed air compressor
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-3250 PARTS CATALOG
- Air In, Drain Assembly
- Auto Bypass, Filter Assembly
- Cabinet Assembly
- Dryer Assembly
- Electrical Assembly
- EWS Assembly
- Outlet Assembly
- Sieve Bed Assembly
- Tank Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2BLAST 5000
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N2BLAST 5000
- For up to 5,000 gal. of total sprinkler pipe capacity
- Integrated Air Dryer and N2 receiver tank
- Requires separate feed air compressor
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-5000 PARTS CATALOG
- Air In, Drain Assembly
- Auto Bypass, Filter Assembly
- Cabinet Assembly
- Dryer Assembly
- Electrical Assembly
- EWS Assembly
- Outlet Assembly
- Sieve Bed Assembly
- Tank Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2BLAST 10000
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N2BLAST 10000
- For up to 10,000 gal. of total sprinkler pipe capacity
- Integrated Air Dryer and N2 receiver tank
- Requires separate feed air compressor
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-10000 PARTS CATALOG
- Cabinet Assembly
- Filter Assembly
- Dryer Assembly
- Electrical Assembly
- N2 Out Assembly
- Supply Air Assembly
- Tank Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2Blast 16500
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N2BLAST 16500
- For up to 16,500 gal. of total sprinkler pipe capacity
- Integrated Air Dryer and N2 receiver tank
- Requires separate feed air compressor
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-5000 PARTS CATALOG
- Cabinet Assembly
- Electrical Assembly
- Filter Assembly
- Dryer Assembly
- N2 Out Assembly
- Supply Air Assembly
- Tank Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
N2Blast 22500
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N2BLAST 22500
- Integrated Air Dryer and N2 receiver tank
- Integrated Air Dryer and N2 receiver tank
- Requires separate feed air compressor
- DOWNLOAD SPEC SHEET
- DOWNLOAD MANUAL
- DOWNLOAD DRAWING
- DOWNLOAD FPS-22500 PARTS CATALOG
- Cabinet Assembly
- Electrical Assembly
- Filter Assembly
- Dryer Assembly
- N2 Out Assembly
- Supply Air Assembly
- Tank Assembly
- General Assembly
- DOWNLOAD CUSTOMER HARDWIRE CONNECTIONS
Nitrogen is all we do, so you can do more.
There are a number of fire protection systems available depending on the specific needs of your environment, from varying sprinkler pipe capacity to integrated air compressors, receiver tanks and air dryers. Providing support well beyond purchase and installation of wet and dry systems, South-Tek Systems’ wide array of solutions and technical knowledge can be built to fit your needs and our industry-standard customer service department is there for you if anything happens down the road.
N2 Blast Nitrogen-generated Dry Sprinkler Accessories
Your one-stop shop for nitrogen-generated, dry sprinkler solutions, South-Tek Systems can support jobs of all sizes. Every nitrogen solution is expertly engineered to fit your organization. Our solutions integrate seamlessly into any fire protection system, engineered for optimum performance, maximum efficiency and minimal maintenance to reliably deliver specified nitrogen purity to support long system life.
Unsure what your unique situation requires?
Request a quote today and our team of professionals will provide a personalized solution.
N2Blast Nitrogen-generated Dry Sprinkler Accessories
Air Compressors
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AIR COMPRESSOR
- MODELS
- 3-5 CS Series
- 710 -CS Series
- 3-5 CS Series
- J Series
- Quick-Fill Compressor
- VISIT OUR AIR COMPRESSOR PAGE
AutoPurge
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AutoPurge 2
- No electrical required
- Purges FPS piping to ensure entire system is blanketed with 98%+ nitrogen purity
- Patented, calibrated orifice custom tunes to each individual riser based on its total capacity (gallons), minimizing runtime of N2Blast
- One AutoPurge is required per dry or pre-action system
- DOWNLOAD SPEC SHEET
AutoPurge Timer
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AutoPurge Timer
- Manual reset to resume purging when the FPS is tested or trips
- Purge automatically turns to the “closed” position after 5 weeks (field adjustable)
- Eliminates the continuous venting of the AutoPurge System/s by closing the purge after 98%+ nitrogen (i.e., the desired purity level to inhibit corrosion) has had sufficient time to cycle throughout the FPS
- DOWNLOAD SPEC SHEET
Sampling Port
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Sampling Port
- Provides additional location to check nitrogen purity concentration within sprinkler piping
- One or multiple Sampling Ports can be installed on any zone which already has an AutoPurge System
- No electrical required
- DOWNLOAD SPEC SHEET
Quick-Check 6 Zone Purity Manifold
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Quick-Check 6 Zone Purity Manifold
- Checks each AutoPurge System for nitrogen purity and flow displays reading on PLC daily
- Ethernet communication included for remote access
- Analog 0-10V, 4-20mA signals available
- Automatically opens and closes AutoPurge System® to ensure 98% nitrogen purity is maintained within Fire Protection System
- DOWNLOAD SPEC SHEET
Portable Nitrogen Purity Sensor
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Portable Nitrogen Purity Sensor
- Connects to an AutoPurge System or Quick-Check Sampling Port
- Easy to use one touch calibration
- Automatic Shutoff
- Battery-operated, hand-held nitrogen analyzer verifies that desired nitrogen purity is achieved within all zones
- DOWNLOAD SPEC SHEET
Quick-Check 1 Zone Purity Manifold
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Quick-Check 1 Zone Purity Manifold
- Checks each AutoPurge System for nitrogen purity and flow displays reading on PLC daily
- Analog 0-10V, 4-20mA signals available
- Ethernet communication included for remote access
- Automatically opens and closes AutoPurge System® to ensure 98% nitrogen purity is maintained within Fire Protection System
- DOWNLOAD SPEC SHEET
Quick-Check 10 Zone Purity Manifold
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Quick-Check 10 Zone Purity Manifold
- Checks each AutoPurge System for nitrogen purity and flow displays reading on PLC daily
- Analog 0-10V, 4-20mA signals available
- Ethernet communication included for remote access
- Automatically opens and closes AutoPurge System® to ensure 98% nitrogen purity is maintained within Fire Protection System
- DOWNLOAD SPEC SHEET
Quick-Check 20 Zone Purity Manifold
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Quick-Check 20 Zone Purity Manifold
- Checks each AutoPurge System for nitrogen purity and flow displays reading on PLC daily
- Analog 0-10V, 4-20mA signals available
- Ethernet communication included for remote access
- Automatically opens and closes AutoPurge System® to ensure 98% nitrogen purity is maintained within Fire Protection System
- DOWNLOAD SPEC SHEET
Regular Air Maintenance Device
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Regular Air Maintenance Device
South-Tek’s Regular Air Maintenance Device (RAMD) is a pressure regulating device that will keep nitrogen or air pressure at the correct level in dry pipe and prepare-action fire sprinkler systems. RAMD is used in conjunction with sprinkler systems with automatically controlled compressed nitrogen at a pressure higher than required for proper system operation. The RAMD includes a manual bypass that, after sprinkler system maintenance or operation, allows quick filling of the sprinkler system.
The Corrosion Triangle
Corrosion is a result of three elements coming together; unprotected metal, oxygen and water. The N2Blast nitrogen generator for dry fire sprinkler systems removes oxygen from the equation, disrupting the process and inhibiting corrosion.
UNPROTECTED METAL
Leaving black steel pipes unprotected results in wall-thinning corrosion that can lead to perforations. Unprotected galvanized steel can lead to pitting – slowing your fire-prevention system down or causing a leak.
OXYGEN
If powered with oxygen instead of nitrogen, there is as much oxygen in your pipes as in the air you breathe. This creates a perfect environment for corrosion.
WATER
Moisture left behind after hydro tests doesn’t completely evaporate from your sprinkler system. These residual water electrolytes further feed corrosion.
UNPROTECTED METAL + OXYGEN + WATER = CORROSION
Extend the Life of a Dry Sprinkler Fire Protection System
The Bottom Line: Protecting your dry fire sprinkler system with nitrogen is worth it. Science says so.
A long-term exposure test found that pipes protected with 98% nitrogen instead of compressed air for dry fire sprinkler systems results in:
Increased life expectancy of black steel pipe systems from 20 years to 63 years.
Increased life expectancy of galvanized steel pipe systems from 10 years to 176 years.
Black Steel Pipe: Compressed Air vs. Nitrogen Exposure
Exposure Duration of 6.5 Years.
COMPRESSED AIR
AS FOUND
CLEANED
NITROGEN
CLEANED
Galvanized Steel Pipe: Compressed Air vs. Nitrogen Exposure
Exposure Duration of 6.5 Years.
COMPRESSED AIR
AS FOUND
CLEANED
NITROGEN
CLEANED
FAQs for Nitrogen-generated Dry Sprinkler Systems
What’s the difference between a dry and wet sprinkler system?
In dry sprinkler systems, pressurized nitrogen or air keeps water at a riser, which isolates the water supply from the sprinkler pipes within a building, keeping pipes dry. Using nitrogen or air instead of water can prevent frozen sprinkler pipes in environments with colder temperatures. The heat from a fire activates sprinklers when surrounding temperatures reach a certain set point, opening the dry valve and releasing the flow of water. In a wet sprinkler system, pipes are filled with pressurized water which is immediately discharged in the event of a fire.
How much does it cost to install a nitrogen-generated dry sprinkler system? What is the value?
In addition to the invaluable human dangers and damages associated with system failures of existing or rapidly deteriorating systems, the cost of an emergency or a replacement system would far exceed the cost of a nitrogen-generated dry sprinkler system. For example, it may cost you $50,000 to install a nitrogen-generated system, but a total sprinkler replacement, including all of the ancillary equipment could cost you $1,000,000.
How does nitrogen in a dry sprinkler system inhibit corrosion?
Corrosion is a result of combining unprotected metal, oxygen and water. When using a nitrogen-generated dry sprinkler system, oxygen is replaced with 98% pure nitrogen, which inhibits corrosion and promotes system longevity and reliability.
What are the different applications of a dry sprinkler system?
Dry sprinkler systems are used in a number of applications in environments where freezing is possible, including but not limited to unheated buildings, parking garages, loading docks, stadiums, data centers, commercial freezers, external building canopies and warehouses.
What is a nitrogen-generated dry sprinkler system?
Nitrogen-generated dry sprinkler systems are protected with pressurized nitrogen, keeping the water supply isolated from sprinkler pipes for optimal operation in colder temperatures that carry risk of freezing. Oxygen contributes to corrosion; 50 percent of dry systems powered by air do not operate as intended after only 10 years. Using nitrogen in your system instead of compressed air reduces corrosion, adding decades to the life of a sprinkler, maximizing system safety and optimal performance over time.