Reliable steam for industrial and commercial applications. A wet-back design and automatic controls ensure stable operation, with optional economizers and low-NOx burners to meet project needs.
Efficient steam generation with low-NOx combustion and condensing heat recovery. The three-pass wet-back design and automatic controls support reduced fuel consumption, stable output, and easy operation.
Designed for high-capacity industrial steam supply. A double-drum D-type layout, membrane water walls, and flue-gas heat recovery deliver efficient heat transfer and stable operation, with optional low-NOx combustion.
Compact once-through design delivers rapid steam generation for on-demand applications. Low water volume, intelligent controls, and multi-unit operation support fast start-up, flexible output, and space-saving installation.
Compact vertical boiler for light industrial and commercial applications. Efficient heating surfaces, an integrated steam-water separator, and automatic safety controls provide reliable steam with easy operation and maintenance.
Key Advantages
The water-cooled rear chamber reduces heat loss and improves heat utilization, while minimizing refractory maintenance.
A generous steam space and corrugated furnace support reliable saturated steam supply under changing production loads.
Large corrugated furnace provides sufficient combustion space, improves heat transfer and effectively absorbs thermal expansion.
A matched low-NOx burner controls combustion to reduce nitrogen oxide emissions while maintaining stable boiler operation.
The condensing economizer recovers heat from exhaust gases to preheat incoming water and improve overall energy utilization.
The three-pass heating surfaces and integrated heat recovery system reduce exhaust heat losses, helping lower fuel use and operating costs.
The double-drum D-type layout provides ample heating surface for continuous, high-capacity steam supply in demanding industrial applications.
Water-cooled membrane walls form a tightly sealed furnace enclosure, helping reduce air leakage and protect the furnace structure.
Radiant and convection heating surfaces absorb combustion heat effectively, while an economizer recovers additional energy from exhaust gases.
The low-water-volume design heats up quickly, reducing start-up time and making steam available promptly when production begins.
Automatic combustion and feedwater controls adjust operation to changing steam demand, supporting flexible production schedules and intermittent heating needs.
An optional coordinated control system stages multiple boilers according to demand, providing flexible capacity and reducing unnecessary operation during low-load periods.
The vertical arrangement requires less floor space, making it suitable for boiler rooms with limited installation area.
An integrated separator helps remove entrained water droplets, improving steam dryness for downstream heating and production processes.
Automatic controls and safety interlocks simplify routine operation, while factory assembly helps streamline installation and commissioning.
Global Projects
14ton Low-Nitrogen Condensing Steam Boiler System
Project for 2 Low-Nitrogen Through-Flow Steam Boilers
15-Metric-Ton Low-Nitrogen Condensing Gas Boiler Energy-Saving Retrofit Project
Technical Specifications
WNS Series Gas/Oil-Fired Steam Boiler Technical Parameters
| Model | Rated evaporation | Rated steam | Thermal efficiency | Fuel consumption | Overall dimension | Weight | |
| Diesel | Natural gas (Nm³/h) | ||||||
| WNS1-1.0/1.25/1.6-Y(Q) | 1 | 1.0/1.25/1.6 | 92 | 63.94 | 70.7 | 3.6×2.0×2.0 | 4 |
| WNS2-1.25/1.6/2.0/2.5-Y(Q) | 2 | 1.25/1.6/2.0/2.5 | 92 | 127.88 | 141.4 | 4.8×2.1×2.3 | 8 |
| WNS3-1.25/1.6/2.0/2.5-Y(Q) | 3 | 1.25/1.6/2.0/2.5 | 94 | 187.73 | 212 | 5.1×2.1×2.3 | 10 |
| WNS4-1.25/1.6/2.0/2.5-Y(Q) | 4 | 1.25/1.6/2.0/2.5 | 94 | 250.31 | 282.8 | 5.2×2.1×2.3 | 11.6 |
| WNS5-1.25/1.6/2.0/2.5-Y(Q) | 5 | 1.25/1.6/2.0/2.5 | 95 | 309.6 | 353.5 | 5.323.1×3.0 | 13 |
| WNS6-1.25/1.6/2.0/2.5-Y(Q) | 6 | 1.25/1.6/2.0/2.5 | 95 | 371.52 | 424.2 | 5.4×3.1×3.15 | 16.6 |
| WNS7-1.25/1.6/2.0/2.5-Y(Q) | 7 | 1.25/1.6/2.0/2.5 | 95 | 433.44 | 496 | 6.1×2.4×2.98 | 20 |
| WNS8-1.25/1.6/2.0/2.5-Y(Q) | 8 | 1.25/1.6/2.0/2.5 | 95 | 495.35 | 565.6 | 6.35×2.5×2.98 | 21.3 |
| WNS10-1.25/1.6/2.0/2.5-Y(Q) | 10 | 1.25/1.6/2.0/2.5 | 96 | 612.75 | 707 | 6.75×2.6×3.2 | 25.6 |
| WNS12-1.25/1.6/2.0/2.5-Y(Q) | 12 | 1.25/1.6/2.0/2.5 | 96 | 735.3 | 848.4 | 7.2×3×3.3 | 35 |
| WNS15-1.25/1.6/2.0/2.5-Y(Q) | 15 | 1.25/1.6/2.0/2.5 | 96 | 919.1 | 1060.5 | 7.42×3.35×3.5 | 40 |
| WNS20-1.25/1.6/2.0/2.5-Y(Q) | 20 | 1.25/1.6/2.0/2.5 | 96 | 1225.5 | 1414 | 7.97×3.73×3.96 | 50 |
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