A once-through water-tube steam generator fired by natural gas, using fully premixed combustion and built-in dual condensing heat recovery. Two standard models cover 500 kg/h and 1000 kg/h of steam at a rated pressure of 1.0 MPa.
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
- Variable-frequency proportional firing with a modulation range of 30%–100%.
- Gas input follows the actual steam load, avoiding frequent burner start/stop cycles.
- Built-in dual condensing (pressurized + atmospheric) heat recovery.
- Fully premixed combustion achieves NOx emissions below 30 mg/m³.
- Once-through vertical-tube design without a steam drum.
- Reaches 0.4 MPa in 60 seconds.
Technical Parameters
| Item | LSS0.5-1.0-Q | LSS1-1.0-Q |
|---|---|---|
| Structure | Once-through water-tube type | Once-through water-tube type |
| Rated steam output (kg/h) | 500 | 1000 |
| Rated steam pressure (MPa) | 1.0 | 1.0 |
Show all 15 rows (12 more)
| Item | LSS0.5-1.0-Q | LSS1-1.0-Q |
|---|---|---|
| NOx emission (mg/m³) | <30 | <30 |
| Rated gas consumption (Nm³/h) | 36-38 | 72-75 |
| Fuel | Natural gas | Natural gas |
| Gas supply pressure (kPa) | 5-7 | 5-7 |
| Load modulation range | 30%-100% | 30%-100% |
| Flue gas temperature (℃) | 60-78 | 60-78 |
| Electrical power (kW) | ≤5 | ≤5 |
| Power supply | 380V 50HZ | 380V 50HZ |
| Dimensions L×W×H (mm) | 2000*1000*1800 | 2200*1150*1970 |
| Steam outlet | DN32 flange | DN40 flange |
| Chimney connection (mm) | Φ200 | Φ300 |
| Unit weight (kg) | 960 | 1420 |
- Natural gas lower heating value taken as 8600 kcal/m³.
- In operation, keep the steam pressure above 0.5 MPa for continuous, stable supply to the steam users. If the users need steam below 0.5 MPa, install a separate pressure-reducing valve.
- For safety, a gas leak alarm and gas shut-off device must be installed in the boiler room.
Final configuration, price and delivery terms are confirmed in the written quotation for your project.
Frequently Asked Questions
What steam output and pressure do the LSS models provide?
LSS0.5-1.0-Q is rated at 500 kg/h and LSS1-1.0-Q at 1000 kg/h, both at a rated steam pressure of 1.0 MPa.
How much natural gas does the condensing steam generator use?
Rated gas consumption is 36–38 Nm³/h for LSS0.5-1.0-Q and 72–75 Nm³/h for LSS1-1.0-Q, based on a natural gas lower heating value of 8600 kcal/m³. The required gas supply pressure is 5–7 kPa.
What NOx emission level does it reach?
The fully premixed burner is rated below 30 mg/m³ NOx for both models.
Can I use steam below 0.5 MPa?
Keep the generator outlet above 0.5 MPa for stable supply, and install a separate pressure-reducing valve if your steam users need lower pressure.
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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