line and duct burners
RatioStar
Duct Burner with Stable flame and high performance.
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Overview
The Eclipse RatioStar is a modular duct burner designed with on-ratio control for direct fired air heating applications. Burners are configured in rows of up to 24 modules. Propagation modules connect individual burner rows to provide cross ignition. This modular design allows for a wide range of burner matrix configurations. Burner modules are built with high quality stainless steel. Eclipse engineers can design a complete RatioStar duct system with gas train to meet specific customer requirements.
Typical Applications:
Typical Applications:
- Air heating processes that require optimum heat distribution in process air flows
- Air heating processes that require optimum combustion efficiency(on-ratio control)
- Low oxygen process air flows that require additional heat
- Process air flows with high inlet temperatures up to 1400ºF (750ºC), where standard air heating burners cannot be used
- Processes that require low emissions of CO, NOx and unburned hydrocarbons
Specifications
Processing & Performance Metrics
- Velocity Across Burner
- Advised ≈10-15 m/s; Range ≈5-25 m/s
- Emissions
- CO and NOx performance shown in datasheet graphs (application‑dependent)
Pressure Specifications
- Nozzle Gas Pressure
- Natural Gas 59 mbar; Propane 25 mbar
Combustion Air, Blower & Emissions Specifications
- Typical Excess Air
- ≈30% (λ ≈ 1.3 at maximum input)
Temperature Control/Measurement
- Temperature Limits
- Upstream: 1110 deg F (600 deg C), Downstream: 1830 deg F (1000 deg C)
Air & Combustion Air Specifications
- Air Inlet Pressure
- ± 10 to 15 mbar
- Air Pressure Drop
- 2 to 2.5 mbar across stabilization plate
Ignition, Flame & Supervision Specifications
- Flame Supervision
- UV Scanner only
- Ignition Type
- Pilot
Performance, Flow & Capacity
- Turndown Ratio
- 1:5 on air
Performance Specifications
- Input Capacity
- Max - 425,000 Btu/h (125 kW) per module
- Min - 42,500 Btu/h (12.5 kW) per module
Control, Logic & Functional Behavior
- Control Method
- Mechanically or electronically linked air/gas valves
Burner/Flame‑Related Lengths
- Flame Length
- ≈1500 mm from Stabilization Plate
Overview
- Model Name
- RatioStar RAS, Version 1
Dimensions & Weight
- Dimensions
- ≈150 x 150 mm
Fuel, Gas & Media Specifications
- Fuel Type
- Natural Gas; Propane (other gases on request)
Standards & Certifications
- Approvals
- Gas Manifold: AISI 316L (1.4404); Stabilization Plate: Avesta 253 MA (1.4893); Flame Shield: Avesta 253 MA (1.4893); Gas Nozzles: AISI 321 (1.4541)
Processing & Performance Metrics
- Velocity Across Burner
- Advised ≈10-15 m/s; Range ≈5-25 m/s
- Emissions
- CO and NOx performance shown in datasheet graphs (application‑dependent)
Pressure Specifications
- Nozzle Gas Pressure
- Natural Gas 59 mbar; Propane 25 mbar
Combustion Air, Blower & Emissions Specifications
- Typical Excess Air
- ≈30% (λ ≈ 1.3 at maximum input)
Temperature Control/Measurement
- Temperature Limits
- Upstream: 1110 deg F (600 deg C), Downstream: 1830 deg F (1000 deg C)
Air & Combustion Air Specifications
- Air Inlet Pressure
- ± 10 to 15 mbar
- Air Pressure Drop
- 2 to 2.5 mbar across stabilization plate
Ignition, Flame & Supervision Specifications
- Flame Supervision
- UV Scanner only
- Ignition Type
- Pilot
Performance, Flow & Capacity
- Turndown Ratio
- 1:5 on air
Performance Specifications
- Input Capacity
- Max - 425,000 Btu/h (125 kW) per module
- Min - 42,500 Btu/h (12.5 kW) per module
Control, Logic & Functional Behavior
- Control Method
- Mechanically or electronically linked air/gas valves
Burner/Flame‑Related Lengths
- Flame Length
- ≈1500 mm from Stabilization Plate
Overview
- Model Name
- RatioStar RAS, Version 1
Dimensions & Weight
- Dimensions
- ≈150 x 150 mm
Fuel, Gas & Media Specifications
- Fuel Type
- Natural Gas; Propane (other gases on request)
Standards & Certifications
- Approvals
- Gas Manifold: AISI 316L (1.4404); Stabilization Plate: Avesta 253 MA (1.4893); Flame Shield: Avesta 253 MA (1.4893); Gas Nozzles: AISI 321 (1.4541)
- Velocity Across Burner : Advised ≈10-15 m/s; Range ≈5-25 m/s
- Nozzle Gas Pressure : Natural Gas 59 mbar; Propane 25 mbar
- Typical Excess Air : ≈30% (λ ≈ 1.3 at maximum input)
- Temperature Limits : Upstream: 1110 deg F (600 deg C), Downstream: 1830 deg F (1000 deg C)
- Air Inlet Pressure : ± 10 to 15 mbar
- Flame Supervision : UV Scanner only
- Air Pressure Drop : 2 to 2.5 mbar across stabilization plate
- Turndown Ratio : 1:5 on air
- Input Capacity : Max - 425,000 Btu/h (125 kW) per module|Min - 42,500 Btu/h (12.5 kW) per module
- Control Method : Mechanically or electronically linked air/gas valves
- Ignition Type : Pilot
- Flame Length : ≈1500 mm from Stabilization Plate
- Model Name : RatioStar RAS, Version 1
- Dimensions : ≈150 x 150 mm
- Fuel Type : Natural Gas; Propane (other gases on request)
- Emissions : CO and NOx performance shown in datasheet graphs (application‑dependent)
- Approvals : Gas Manifold: AISI 316L (1.4404); Stabilization Plate: Avesta 253 MA (1.4893); Flame Shield: Avesta 253 MA (1.4893); Gas Nozzles: AISI 321 (1.4541)
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00.4121003.11
PLT,STABILISATION,FFB,RAS
00.4121003.11
PLT,STABILISATION,FFB,RAS
00.4121003.12
PLT,PROPAGATION,FFB
00.4121003.12
PLT,PROPAGATION,FFB
00.4121003.15
PLT,PROPAGATION,FFB,151 MM
00.4121003.15
PLT,PROPAGATION,FFB,151 MM
00.4121006.00
MTG STRP,FLUE FIRE BRNR
00.4121006.00
MTG STRP,FLUE FIRE BRNR
00.4121028.04
NZL,GAS,RAS,HP,SPR ONLY
00.4121028.04
NZL,GAS,RAS,HP,SPR ONLY
00.4121028.13
NOZZLE GAS RAS LOW PRESSURE
00.4121028.13
NOZZLE GAS RAS LOW PRESSURE
00.4121028.14
NZL,GAS,PROPAGATION,RAS,FFB
00.4121028.14
NZL,GAS,PROPAGATION,RAS,FFB
00.4121029.10
PLT,SIDE,RAS
00.4121029.10
PLT,SIDE,RAS
00.4121029.11
PLT,END,RAS
00.4121029.11
PLT,END,RAS
00.4121029.13
PLT,END,RAS,PILT
00.4121029.13
PLT,END,RAS,PILT
