Product Overview
The LSS Series Gas/Oil-Fired Vertical Steam Boiler is a compact solution designed for reliable saturated steam supply in light industrial and commercial applications. Its space-saving vertical structure and optimized radiant heating surfaces support efficient heat transfer and stable steam output, while an integrated steam-water separator improves steam dryness. Designed for frequent start-stop operation, it can reach full-load operating conditions in approximately 20 minutes under specified start-up conditions. Automatic safety interlocks and factory-assembled delivery simplify daily operation, installation, and maintenance.

Product Structure Drawing

Key Advantages
Optimized for frequent start-stop operation, the boiler can reach full-load steam conditions in approximately 20 minutes from a cold start under specified conditions, reducing waiting time for on-demand production.
The space-saving vertical layout minimizes floor-space requirements, improves boiler-room utilization, and helps reduce building and installation costs for compact steam systems.
An ample radiant heating surface improves heat absorption and reduces exhaust heat losses, supporting efficient fuel utilization and consistent rated steam output under design conditions.
A high-efficiency steam-water separator inside the boiler drum reduces moisture carryover, improves steam dryness, and delivers more consistent steam quality for industrial processes.
Automatic interlocks protect against overpressure, abnormal water levels, and excessive exhaust temperatures. A relatively small water inventory further helps limit stored thermal energy.
The factory-assembled, lightweight vertical package reduces on-site assembly and installation time. Its balanced structure supports stable, low-vibration operation with limited foundation requirements.
Typical Applications
Small-batch cooking, blanching, cleaning, and process heating
Garment pressing, steam ironing, and fabric finishing
Washing, pressing, and textile finishing
Equipment cleaning and utility steam for appropriate processes
Adhesive processing, drying, and localized steam heating
Batch heating, component cleaning, and small-scale production steam
Technical Specifications
| Item | Unit | LSS0.3 | LSS0.5 | LSS0.7 | LSS1 | |
| Rated Capacity | t/h | 0.3 | 0.5 | 0.7 | 1 | |
| Rated Working Pressure | MPa | 0.7/1.0 | ||||
| Rated Steam Temperature | ℃ | 170/184 | ||||
| Feedwater Temperature | ℃ | 20 | ||||
| Thermal Efficiency | % | 93 ~ 94 | ||||
| Boiler Heating Area | m² | 8.4 | 15 | 21.5 | 26 | |
| Energy Saver Heating Area | m² | 4.8 | 4.8 | 9 | 12 | |
| Applicable Fuel | – | Heavy Oil, Light Oil, Natural Gas, Liquefied Petroleum Gas, City Gas | ||||
| Fuel Consumption | Light Oil | kg/h | 21 | 34 | 47 | 67 |
| Natural Gas | Nm³/h | 25 | 41 | 56 | 81 | |
| Total Power | Light Oil | kw | 0.25 | 0.5 | 0.65 | 1.1 |
| Natural Gas | kw | 0.18 | 0.5 | 0.75 | 1.1 | |
| Weight (Dry) for Transport | t | 2.1 | 2.7 | 3.64 | 3.8 | |
| Full Water Capacity | m³ | 0.7 | 1.05 | 1.63 | 1.65 | |
| Main Steam Valve Aperture | DN | 32 | 40 | 50 | 50 | |
| Feed Water Valve Aperture | DN | 25 | 25 | 25 | 32 | |
| Safety Valve Aperture | DN | 40 | 40 | 2 × 40 | 2 × 40 | |
| Blow-down Valve Aperture | DN | 40 | 40 | 40 | 40 | |
| Chimney Diameter | Φ | 200 | 280 | 280 | 280 | |
| Overall Dimensions of Boiler (Assembled) L × W × H | mm | 1340 × 1300 × 2510 | 1540 × 1500 × 2860 | 1900 × 1800 × 3040 | 1900 × 1800 × 3310 | |






