40 ton/hour D-type water tube steam boiler for sale, thermal efficiency >95%. Gas consumption: 2796.9Nm³/h. Steam temperature: 250℃.
This steam boiler provides reliable, high-quality steam, excellent efficiency and easy operation. Designed for industrial use, this boiler is compact, rugged and easy to install and maintain.
NSZS Water Tube Steam Boiler Specifications
| Type | General parameters | Capacity (t/h) | Fuel consumption | L×W×H(mm) | |||
|---|---|---|---|---|---|---|---|
| Diesel(kg/h) | heavy oil(kg/h) | natural gas(Nm³/h) | city gas(Nm³/h) | ||||
| NSZS10-1.25-Y(Q) | Power supply：380/50(V/Hz) Rated steam pressure：1.25(Mpa) Rated thermal efficiency:>99% Exhaust temperature：<70℃ Steam temperature: 250℃ |
10 | 583.1 | 606.5 | 658.6 | 1337.6 | 8500* 7645* 4560 |
| NSZS15-1.25-Y(Q) | 15 | 925.2 | 962.4 | 1068.2 | 2169.6 | 9300* 7645* 4790 | |
| NSZS20-1.25-Y(Q) | 20 | 1210.8 | 1278.2 | 1378.9 | 2800.7 | 10300* 8030* 5090 | |
| NSZS25-1.25-Y(Q) | 25 | 1521.4 | 1605.6 | 1754.3 | 3518.1 | 12340* 7930* 4518 | |
| NSZS30-1.25-Y(Q) | 30 | 1879 | 1982.3 | 2111.7 | 3829.3 | 13380* 8454* 4792 | |
| NSZS40-1.25-Y(Q) | 40 | 2431 | 2592.7 | 2796.9 | 5680.8 | 12500* 9030* 5512 | |
| NSZS50-1.25-Y(Q) | 50 | 3097.8 | 3222.4 | 3476.2 | 7060.5 | 14000* 9680* 5260 | |
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Key Features
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Over 95 % Thermal Efficiency
By optimizing furnace geometry and heat-recovery surfaces, this boiler turns more of your fuel into usable steam and keeps stack temperatures under 70 °C. -
D-Type Water-Tube Design
The D-shape arrangement means faster heat transfer, quicker start-ups and a smaller footprint—ideal when space is at a premium. -
Multi-Fuel Capability
Easily switch between diesel, heavy oil, natural gas or city gas to take advantage of local fuel costs and availability. -
Flexible Output
Though our focus here is the 40 t/h unit, the same design scales from 10 t/h up to 50 t/h—perfect whether you need modest steam or industrial-scale capacity. -
Built-In Safety
Sturdy steel fabrication, fully welded pressure parts and standard safety valves and water-level controls protect both people and equipment.
Typical Applications
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Manufacturing: Process heating, power generation, equipment sterilization
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Food & Beverage: Cooking, pasteurization, cleaning
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Chemicals: Distillation, reactor heating, solvent recovery
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Textiles & Paper: Dyeing, drying, pulping
With its straightforward operation and low maintenance requirements, this D-Type boiler integrates smoothly into any facility. Whether you need continuous steam for production lines or intermittent bursts for cleaning, it stands ready to deliver.
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