The Liangpu NSZS series is a horizontal natural-gas steam boiler with membrane-wall heat exchange and a built-in laser finned-tube economizer. Three models cover 300, 500 and 1000 kg/h of steam at a rated steam pressure of 0.8 MPa: NSZS0.3-0.8-QY, NSZS0.5-0.8-QY and NSZS1.0-0.8-0Y. Natural-gas consumption is 22–25, 38–40 and 76–78 Nm³/h respectively, and flue-gas temperature is below 80 °C. The manufacturer states that pressure rises within 2 minutes of start-up. The 300 kg/h model runs on single-phase 220 V/50 Hz; the 500 and 1000 kg/h models run on three-phase 380 V/50 Hz. Liangpu Environmental (Zhucheng Liangpu Environmental Protection Technology Co., Ltd.) supplies the NSZS series from Zhucheng, Shandong, China, and can quote a matched water softener or RO system for the boiler feed water in the same quotation.
Manufacturer: Shandong Zhongyi Thermal Energy Equipment Co., Ltd. (钟一热能), Zhucheng, Shandong, China. The nameplate and cabinet markings visible in the photos on this page refer to this manufacturer.
Features
- Membrane-wall heat exchange; pressure rises in 2 minutes, ready to use without waiting.
- Built-in precision laser finned-tube economizer; flue gas temperature below 80°C.
- Built-in multi-stage steam-water separation and steam collector for dry steam.
- Control system with optional remote IoT function and mobile-app remote operation.
- Large horizontal furnace with smooth flue-gas flow, compatible with many burner types; with a suitable burner it can reach the 30 mg low-NOx emission level.
- Lower-header inspection port to check scaling in the water tubes at any time and help prevent scale-related tube failure.
- Multiple safety protections: water-level interlock alarm, boiler over-temperature alarm, overpressure alarm and flue-gas over-temperature alarm.
Technical Parameters
| Model | NSZS0.3-0.8-QY | NSZS0.5-0.8-QY | NSZS1.0-0.8-0Y |
|---|---|---|---|
| Rated steam output (kg/h) | 300 | 500 | 1000 |
| Rated steam pressure (MPa) | 0.8 | 0.8 | 0.8 |
| Fuel | Natural gas | Natural gas | Natural gas |
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| Model | NSZS0.3-0.8-QY | NSZS0.5-0.8-QY | NSZS1.0-0.8-0Y |
|---|---|---|---|
| Power supply | Single-phase 220V/50HZ | Three-phase 380V/50HZ | Three-phase 380V/50HZ |
| Steam outlet (DN) | DN25 | DN32 | DN40 |
| Chimney diameter (mm) | 159 | 219 | 325 |
| Natural gas consumption (Nm³/h) | 22-25 | 38-40 | 76-78 |
| Shipping dimensions (mm) | 1870*1150*1600 | 2150*1250*1800 | 2600*1500*2070 |
| Shipping weight (kg) | 850 | 1270 | 2150 |
- For safety, a gas leak alarm and gas shut-off device must be installed in the boiler room.
Which NSZS Model Fits Your Steam Demand?
Choose the NSZS model by the peak steam demand of all steam-use points that run at the same time, not by the number of machines. The NSZS0.3-0.8-QY delivers 300 kg/h, has a DN25 steam outlet and a 159 mm chimney, and ships at 1870 × 1150 × 1600 mm and 850 kg. The NSZS0.5-0.8-QY delivers 500 kg/h with a DN32 outlet and a 219 mm chimney, shipping at 2150 × 1250 × 1800 mm and 1270 kg. The NSZS1.0-0.8-0Y delivers 1000 kg/h with a DN40 outlet and a 325 mm chimney, shipping at 2600 × 1500 × 2070 mm and 2150 kg. All three are rated at 0.8 MPa and burn natural gas. If your demand sits between two models, send your equipment list and operating schedule so the capacity can be checked before quotation.
Applications
The NSZS gas-fired steam boiler is used where a site has a natural-gas supply and needs 300–1000 kg/h of steam at up to 0.8 MPa. Typical uses include:
- Food processing: jacketed kettles, sterilizers, steam cabinets and cleaning lines.
- Commercial laundry: washing machines, dryers, flatwork ironers and garment finishing.
- Process heating: jacketed reactors, mixing tanks and heat exchangers in chemical and daily-chemical plants.
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- Cleaning and sanitation: steam cleaning and disinfection in production areas.
Suitability for a specific process is confirmed against your steam pressure, steam quality and operating-hour requirements in the quotation.
Site and Utility Requirements
An NSZS boiler room needs a natural-gas supply sized for the model, a chimney of the listed diameter, the listed power supply, and a gas leak alarm with a gas shut-off device, which must be installed for safety. Feed water should be reviewed before installation: hard water forms scale in the water tubes, and the lower-header inspection port lets operators check for scale. Where raw-water hardness needs treatment, Liangpu matches a simplex or duplex industrial water softener to the boiler. Confirm door and access clearances against the shipping dimensions above before delivery.
Final configuration, price and delivery terms are confirmed in the written quotation for your project.
Frequently Asked Questions
What capacities does the NSZS gas steam boiler cover?
Three models: NSZS0.3-0.8-QY (300 kg/h), NSZS0.5-0.8-QY (500 kg/h) and NSZS1.0-0.8-0Y (1000 kg/h), all at a rated steam pressure of 0.8 MPa and all fuelled by natural gas.
How much natural gas does it use?
Natural gas consumption is 22–25 Nm³/h for the 300 kg/h model, 38–40 Nm³/h for the 500 kg/h model and 76–78 Nm³/h for the 1000 kg/h model.
What safety protections are included?
Water-level interlock alarm, boiler over-temperature alarm, overpressure alarm and flue-gas over-temperature alarm, plus a lower-header inspection port for checking scale in the water tubes. A gas leak alarm and gas shut-off device must also be installed in the boiler room.
What power supply does the NSZS boiler need?
The 300 kg/h model (NSZS0.3-0.8-QY) uses single-phase 220 V/50 Hz. The 500 kg/h and 1000 kg/h models use three-phase 380 V/50 Hz. Tell us your site voltage, phase and frequency so the supply can be confirmed in the quotation.
Does the NSZS boiler need softened feed water?
The feed water should be reviewed before installation. Hard water contains calcium and magnesium that form scale in the water tubes. Where raw-water hardness needs treatment, Liangpu matches a simplex or duplex industrial water softener and can quote it together with the boiler.
What should I send to get an NSZS quotation?
Send the application, required steam output and pressure, the equipment that will use steam, working hours, gas supply details, site voltage, a raw-water analysis if available, and the destination country. Email yeyiyulong@163.com or WhatsApp +852 5762 0371.
Request a Quotation
Send your application, required steam output, fuel or power supply, water source and destination country. We reply with a matched configuration and written quotation.
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