line and duct burners
NP-RG AIRFLO®
MAXON Series NP & RG AIRFLO® burners consist of a robust cast-iron or aluminum burner-body (which serve as the gas manifold) drilled to discharge the gaseous fuel between diverging stainless steel mixing plates.
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Overview
MAXON Series NP and RG AIRFLO® Industrial Burners provide clean, direct fired air heating to optimize process air heating efficiency. The modular natural gas burners install easily with custom built patterns to fit your duct. NP and RG burners burn cleanly with most gaseous fuels and offer high heat releases per foot with wide turndown ratios.
Features & Benefits:
Features & Benefits:
- For direct fired fresh air heating applications
- Operates economically (100 % thermal efficiency) and installs easily
- Burns clean and odor-free with most gaseous fuels, meeting or exceeding most known standards for direct-fired make-up air and space-heating applications
- High turndown, up to 25 : 1
- Modular design configured within your duct for optimal temperature distribution
- No need for a combustion air blower
- Extremely low maintenance cost thanks to robust design (no moving parts) and high quality materials
Specifications
Air & Combustion Air Specifications
- Air Velocity Range
- NP‑I/NP‑II ≈3000 fpm
- NP‑III ≈4000 fpm
- RG‑IV ≈1600-3200 fpm
Performance, Flow & Capacity
- Turndown Ratio
- NP‑I 25:1
- NP‑II 20:1
- NP‑III 6:1
- RG‑IV 20:1
- staged configurations may exceed 50:1
Temperature & Thermal Specifications
- Thermal Efficiency
- Up to ~100% (direct‑fired) per bulletin statement of 100% thermal efficiency
Pressure Specifications
- Pressure Drop
- NP‑I/NP‑II ≈0.6 in wc
- NP‑III ≈1.0 in wc
- RG‑IV ≈0.1-1.0 in wc (Process Air)
- Natural Gas Pressure
- NP‑I/NP‑III/RG‑IV ≈4.8-5.6 in wc
- NP‑II ≈2.4-2.8 in wc
Overview
- Model Name
- NP‑I, NP‑II, NP‑III, RG‑IV
Processing & Performance Metrics
- Maximum Capacity
- NP-I/NP-II: 0.5 MBtu/h
- NP-III - 1.0 Mbtu/h
- RG-IV - 0.25 to 0.5 Mbtu/h
Ignition, Flame & Supervision Specifications
- Ignition and Supervision
- Spark ignitor, pilot and flame rod provisions; sequencing/control and safety shut‑off valves per system schematic
Fuel, Gas & Media Specifications
- Fuel Type
- Natural Gas; Propane and Propane‑air mixture (NP series); RG‑IV Natural Gas only
Burner/Flame‑Related Lengths
- Flame Length
- NP‑I/NP‑II ≈0.8-1 ft
- NP‑III ≈2.3-2.6 ft
- RG‑IV ≈1-1.1 ft
Dimensions & Weight
- Dimensions
- NP‑*-12 ≈12 x 7 x 6.5 in
- RG‑IV‑12 ≈12 x 9 x 8.5 in (cast iron bodies) (Straight Sections)
Material Specifications
- Body Material
- Cast Iron Or Aluminum Body Options
Applications & Compatibility
- Applications
- Direct‑fired fresh air heating (make‑up air and process air), raw‑gas operation with profile plate velocity control
Air & Combustion Air Specifications
- Air Velocity Range
- NP‑I/NP‑II ≈3000 fpm
- NP‑III ≈4000 fpm
- RG‑IV ≈1600-3200 fpm
Performance, Flow & Capacity
- Turndown Ratio
- NP‑I 25:1
- NP‑II 20:1
- NP‑III 6:1
- RG‑IV 20:1
- staged configurations may exceed 50:1
Temperature & Thermal Specifications
- Thermal Efficiency
- Up to ~100% (direct‑fired) per bulletin statement of 100% thermal efficiency
Pressure Specifications
- Pressure Drop
- NP‑I/NP‑II ≈0.6 in wc
- NP‑III ≈1.0 in wc
- RG‑IV ≈0.1-1.0 in wc (Process Air)
- Natural Gas Pressure
- NP‑I/NP‑III/RG‑IV ≈4.8-5.6 in wc
- NP‑II ≈2.4-2.8 in wc
Overview
- Model Name
- NP‑I, NP‑II, NP‑III, RG‑IV
Processing & Performance Metrics
- Maximum Capacity
- NP-I/NP-II: 0.5 MBtu/h
- NP-III - 1.0 Mbtu/h
- RG-IV - 0.25 to 0.5 Mbtu/h
Ignition, Flame & Supervision Specifications
- Ignition and Supervision
- Spark ignitor, pilot and flame rod provisions; sequencing/control and safety shut‑off valves per system schematic
Fuel, Gas & Media Specifications
- Fuel Type
- Natural Gas; Propane and Propane‑air mixture (NP series); RG‑IV Natural Gas only
Burner/Flame‑Related Lengths
- Flame Length
- NP‑I/NP‑II ≈0.8-1 ft
- NP‑III ≈2.3-2.6 ft
- RG‑IV ≈1-1.1 ft
Dimensions & Weight
- Dimensions
- NP‑*-12 ≈12 x 7 x 6.5 in
- RG‑IV‑12 ≈12 x 9 x 8.5 in (cast iron bodies) (Straight Sections)
Material Specifications
- Body Material
- Cast Iron Or Aluminum Body Options
Applications & Compatibility
- Applications
- Direct‑fired fresh air heating (make‑up air and process air), raw‑gas operation with profile plate velocity control
- Air Velocity Range : NP‑I/NP‑II ≈3000 fpm|NP‑III ≈4000 fpm|RG‑IV ≈1600-3200 fpm
- Turndown Ratio : NP‑I 25:1|NP‑II 20:1|NP‑III 6:1|RG‑IV 20:1|staged configurations may exceed 50:1
- Thermal Efficiency : Up to ~100% (direct‑fired) per bulletin statement of 100% thermal efficiency
- Pressure Drop : NP‑I/NP‑II ≈0.6 in wc|NP‑III ≈1.0 in wc|RG‑IV ≈0.1-1.0 in wc (Process Air)
- Natural Gas Pressure : NP‑I/NP‑III/RG‑IV ≈4.8-5.6 in wc|NP‑II ≈2.4-2.8 in wc
- Model Name : NP‑I, NP‑II, NP‑III, RG‑IV
- Maximum Capacity : NP-I/NP-II: 0.5 MBtu/h|NP-III - 1.0 Mbtu/h|RG-IV - 0.25 to 0.5 Mbtu/h
- Ignition and Supervision : Spark ignitor, pilot and flame rod provisions; sequencing/control and safety shut‑off valves per system schematic
- Fuel Type : Natural Gas; Propane and Propane‑air mixture (NP series); RG‑IV Natural Gas only
- Flame Length : NP‑I/NP‑II ≈0.8-1 ft|NP‑III ≈2.3-2.6 ft|RG‑IV ≈1-1.1 ft
- Dimensions : NP‑*-12 ≈12 x 7 x 6.5 in|RG‑IV‑12 ≈12 x 9 x 8.5 in (cast iron bodies) (Straight Sections)
- Body Material : Cast Iron Or Aluminum Body Options
- Applications : Direct‑fired fresh air heating (make‑up air and process air), raw‑gas operation with profile plate velocity control
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