The BIDRAGON SZS Series Gas-Fired (Oil-Fired) Steam Boiler is a high-performance, quick-installed “D”-type water tube boiler designed for industrial applications that demand high efficiency, safety, and reliability. Featuring double drums in a vertical arrangement and a full membrane water wall structure, this boiler delivers outstanding heat transfer, exceptional sealing, and minimal heat loss.
Its compact and reasonable layout ensures large-capacity steam output with reduced space requirements, helping you cut investment costs in boiler house infrastructure and shorten installation periods. This makes it an ideal choice for industries such as textiles, chemicals, pharmaceuticals, food processing, power generation, and more.
| Model | SZS10 | SZS15 | SZS20 | SZS25 | SZS30 | SZS35 | SZS40 | SZS50 | ||
| Rated Evaporation | t/h | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 50 | |
| Rated Steam Pressure | Mpa | 1.25(1.6) | ||||||||
| Rated Steam Temp. | ℃ | 194(204) | ||||||||
| Rated Inlet Water Temp. | ℃ | 20(104) | ||||||||
| Designed Heat Efficiency | % | 92.8 | 92.9 | 93 | 93 | 93.1 | 93.1 | 93.2 | 93.2 | |
| Designed Ambient Temperature | ℃ | 20 | ||||||||
| Weight | T | 30.6 | 40 | 45 | 48 | 52 | 59 | 65 | 70 | |
| Boiler Operating Water Volume | T | 8.2 | 10.8 | 13.3 | 15.4 | 19.5 | 23.2 | 28.6 | 32.5 | |
| Boiler Full Water Volume | T | 10 | 13.5 | 16.3 | 18.6 | 22.8 | 27.5 | 34.5 | 38.6 | |
| Burning Method | Micro Positive Pressure Chamber Combustion | |||||||||
| Natural Gas | Nm3/h | 790.3 (691.1) |
1173.2 (1016.6) |
1545.3 (1342) |
1950.2 (1700.2) |
2340.6 (2035.6) |
2730 (2381.2) |
3115.4 (2710.5) |
3898.2 (3395.6) |
|
| Diesel Oil | Kg/h | 679.3 (599) |
1000 (895.3) |
1323.9 (1161) |
1698.5 (1496.5) |
2039 (1801.2) |
2380.2 (2101.1) |
2705.6 (2385.4) |
3398.4 (2999.2) |
|
| Transportation Size | L | mm | 7700 | 9270 | 9650 | 9650 | 10850 | 11780 | 12820 | 12820 |
| W | 2750 | 3450 | 3530 | 3710 | 3890 | 4150 | 4270 | 4390 | ||
| H | 3680 | 3800 | 3950 | 4050 | 4200 | 4250 | 4300 | 4400 | ||
| Installation Size | L | mm | 9200 | 12340 | 12820 | 12820 | 13860 | 14790 | 15830 | 15830 |
| W | 4478 | 5800 | 6200 | 6450 | 6700 | 7000 | 7300 | 7600 | ||
| H | 4365 | 4450 | 4600 | 4700 | 4850 | 5000 | 5100 | 5200 | ||
| Water Inlet | DN | mm | 50 | 50 | 65 | 65 | 80 | 80 | 80 | 100 |
| Main Steam Outlet | DN | mm | 150 | 150 | 200 | 200 | 200 | 250 | 250 | 300 |
| Secondary Steam Outlet | DN | mm | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Manual Sewage Outlet | DN | mm | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Continuous Sewage Outlet | DN | mm | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Safety Valve | DN | mm | 2*80 | 2*100 | 2*100 | 2*125 | 2*150 | 2*150 | 2*150 | 2*150 |
| Chimney Diameter | mm | Ø800 | Ø 950 | Ø 1100 | Ø 1200 | Ø 1300 | Ø 1400 | Ø 1500 | Ø 1650 | |
| Remark 1: Above all data according to standards of natural gas low position calorific value8400kcal/Nm, diesel low position calorific value 10250kcal/kg. Remark 2: Due to continuous improvement, we reserve the right to modify the appearance& specifications. The above parameters are for reference only, please refer to the final drawing. |
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