Engineering features
- Integrated burner and boiler control
- Wet-back and project-specific boiler arrangements
- Feedwater and water-treatment integration
- Economizer and condensate-recovery options
Steam Boiler
Industrial Gas-Fired Steam Boiler Manufacturer in China
Compare JIELI gas-fired steam boilers from 1 to 20 t/h, with natural-gas, diesel and fuel-oil options. Review the WNS model data and Argentina 12 t/h project. Send steam output, required pressure, fuel and country to request a boiler-room quotation.
Steam output1–20 t/h
Pressure options1.0–2.5 MPa
System efficiency≥95%
Supply scopeBoiler + auxiliaries
Available fuelNatural gas · Diesel · Fuel oil
System overview
Gas-fired steam boiler package and supply options.
JIELI manufactures industrial gas-fired and oil-fired steam boilers for process plants. Natural gas, diesel and fuel oil require different burner and fuel-train checks; a dual-fuel proposal must state the operating range on each fuel. Review the WNS steam boiler model parameters, then use the gas, oil and dual-fuel burner selection guide to define the firing system. Water treatment, feedwater, economizer and condensate-return scope are agreed with the boiler.
Typical applications
- Food-processing steam applications
- Paper and packaging
- Textile-production steam requirements
- Pharmaceutical processing
- General manufacturing
System supply scope
- Steam boiler
- Burner and fuel train
- Feedwater and water treatment
- Economizer and heat recovery
- Electrical control system
Compare efficiency at the same operating load, feedwater temperature and fuel heating-value basis (LHV or HHV), with the economizer and other included equipment stated. Confirm the performance basis in the project proposal; a catalogue value is not an annual fuel-use guarantee.
Equipment and project gallery
Equipment views, manufacturing and product presentations.
JIELI THERMAL equipment and manufacturing views. Some images are digitally retouched for presentation; these are not unaltered site records. Select an image to read its description.
Documented steam-boiler references: Argentina WNS12-1.25, 12 t/h gas-fired steam boiler and Indonesia 30 t/h shell-type steam boiler delivery.
Technical parameters
Model range for preliminary selection.
The table below is translated from the technical data supplied for this product family. Final selection is confirmed against your fuel, operating conditions and project requirements.
WNS gas-fired steam boiler models: quick comparison
| Model | Steam output | Burner regulation |
|---|---|---|
| WNS1 | 1 t/h · 1,000 kg/h | Hi-low-off |
| WNS2 | 2 t/h · 2,000 kg/h | Hi-low-off |
| WNS4 | 4 t/h · 4,000 kg/h | Hi-low-off |
| WNS6 | 6 t/h · 6,000 kg/h | Proportional |
| WNS10 | 10 t/h · 10,000 kg/h | Proportional |
| WNS20 | 20 t/h · 20,000 kg/h | Proportional |
Selected entries from the full WNS catalogue below. Confirm pressure, minimum load, fuel conditions and burner configuration in the proposal; a nominal output does not establish fuel consumption.
Request a model and price check →Model seriesWNS horizontal internal-combustion wet-back steam boiler
| Technical parameter | Unit | WNS1 | WNS2 | WNS3 | WNS4 | WNS5 | WNS6 | WNS8 | WNS10 | WNS12 | WNS15 | WNS20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated evaporation capacity | t/h | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 |
| Rated working pressure | MPa | 1.0 / 1.25 / 1.6 / 2.0 / 2.5 | ||||||||||
| Steam temperature | °C | Saturated steam temperature | ||||||||||
| Feedwater temperature | °C | 20 (105) | ||||||||||
| Burner regulation | — | Hi-low-off | Hi-low-off | Hi-low-off | Hi-low-off | Hi-low-off | Proportional | Proportional | Proportional | Proportional | Proportional | Proportional |
| Thermal efficiency | % | ≥95 | ||||||||||
| Available fuel | — | Natural gas, diesel or heavy fuel oil | ||||||||||
| Overall length | mm | 3586 | 4334 | 4958 | 5458 | 5716 | 6316 | 6429 | 7223 | 8129 | 8872 | 9200 |
| Overall width | mm | 2466 | 2637 | 2721 | 2721 | 3190 | 3190 | 3273 | 3273 | 3273 | 3650 | 3780 |
| Overall height | mm | 2885 | 3109 | 3287 | 3287 | 3924 | 3456 | 4344 | 4350 | 4322 | 4440 | 4820 |
Values are translated from the supplied technical parameter sheets and are intended for preliminary selection. Product data may be updated as designs evolve; final performance, dimensions and configuration are subject to the confirmed technical proposal.
Download 20 WNS / DZL model records and project input sheet (Excel, EN / ES). Filter the models and fill in your project requirements before requesting a proposal. Published catalogue data for preliminary selection; final dimensions and operating conditions require technical confirmation.
STEAM QUALITY & OPERATING LOAD
Specify usable steam, not only the rated evaporation.
An industrial gas-fired steam boiler must meet the steam condition at the process connection: required pressure, saturated or superheated steam, and any dryness or purity requirement. Confirm normal, peak and minimum demand, how quickly loads change, and the distribution pressure drop. Rated tonnes per hour alone do not establish steam quality or operation at low load.
Rapid load changes, high water level and unsuitable boiler-water conditions can contribute to carryover. Review burner turndown and controls together with feedwater treatment and blowdown. State condensate-return percentage and feedwater temperature when comparing steam boiler gas consumption; these assumptions change the fuel requirement.
Selection starts with data
Gas-fired steam boiler price: compare the same steam and water basis
A 5 TPH or 10 TPH gas-fired steam boiler quotation needs the steam pressure, normal and peak demand, gas supply and feedwater conditions—not capacity alone. Itemize burner, economizer, water treatment, feed pumps, condensate return, controls and installation. The gas-fired boiler fuel-consumption calculation helps compare running cost using a stated heating-value and efficiency basis.
FUEL & OPERATING BASIS
Gas-fired or oil-fired steam: define the fuel supply.
A gas-fired steam boiler needs a confirmed gas composition, available pressure and supply stability. An oil-fired steam boiler needs the liquid-fuel grade and any heating or atomization requirements. Specify a dual-fuel burner only where the proposed fuels and changeover arrangement have been reviewed.
Capacity and pressure
State normal, peak and minimum steam demand in kg/h or t/h, required pressure at the process user and the operating schedule. Nominal evaporation alone does not define the burner operating range.
Fuel and emissions
Confirm fuel composition and pressure, burner turndown, backup fuel, local NOx requirements and heat-recovery scope.
Complete steam plant
Compare the boiler together with feedwater, water treatment, condensate return, blowdown, controls, chimney and commissioning boundary.
MANUFACTURING & DELIVERY
Check the proposed arrangement against real delivery evidence.
Review the Argentina WNS12-1.25 gas-fired steam boiler project for equipment photographs and the stated selection basis. Request the same model, pressure, inspection-document and shipping details for your own quotation. A boiler may be delivered assembled, in modules or for site erection; the contract must define the actual boundary.
Fire-tube selection
Evaluate footprint, steam demand, pressure, load changes, maintenance access and transport limits rather than selecting from the construction name alone.
Water-tube selection
Higher capacity or pressure projects require coordinated review of circulation, water treatment, controls, erection interfaces and local code requirements.
Delivery boundary
Confirm burner and fuel train, feedwater, treatment, economizer, blowdown, condensate return, chimney, instruments and commissioning scope.
Other solutions
Compare steam fuel options and other process-heating systems.
Steam Boiler
Biomass-fired Steam Boiler
Wood chips · Pellets · Agricultural residuesFuel-adapted biomass steam systems for continuous industrial production and complete plant integration.
View solution
Thermal Oil Heater
Gas / Oil-fired Thermal Oil Heater
Natural gas · Diesel · Fuel oilPrecisely controlled high-temperature process heating with clean combustion and flexible system integration.
View solution
Thermal Oil Heater
Biomass-fired Thermal Oil Heater
Wood chips · Pellets · Agricultural residuesRobust process-heating systems designed around biomass fuel characteristics and stable thermal-oil circulation.
View solutionCapacity and application guides
Size the steam plant from real users and operating time.
Build the process load schedule before choosing a standard boiler model. Capacity, pressure, burner range, feedwater, condensate and hygienic interfaces must be reviewed together.
Steam capacity calculation
Use the steam boiler capacity calculation guide to separate normal production, start-up peaks, losses and justified contingency.
Food processing steam
Review cooking, CIP, sterilization, water treatment and condensate recovery in the food processing steam boiler guide.
Manufacturer verification
Source an industrial steam boiler from verified manufacturing evidence.
When comparing a China boiler manufacturer, review the pressure-part fabrication route, material traceability, welding and inspection records, burner matching, controls, documented supply boundary and export preparation. See the JIELI boiler manufacturing base in Linyi and the international project engineering hub before defining the proposal scope.
Buyer guide
Choose the firing system around fuel, load and steam conditions.
A boiler proposal should define more than rated capacity. Fuel availability, hourly steam demand, design pressure, feedwater temperature, turndown and local emissions requirements determine the burner, pressure part and auxiliary system.
Gas-fired or oil-fired?
A gas-fired steam boiler usually offers cleaner combustion and easier modulation where pipeline gas is reliable. An oil-fired steam boiler can suit sites using diesel or fuel oil, or provide backup-fuel resilience. A dual-fuel burner can be evaluated when changeover is required.
WNS or SZS arrangement?
WNS fire-tube packages are commonly considered for compact packaged-boiler duties. SZS water-tube arrangements are evaluated for larger capacities, higher pressures or demanding load profiles. Final selection follows the project data and applicable code.
Size from the load profile
Use measured peak, normal and minimum steam demand instead of adding an arbitrary margin. For WNS1–WNS20 capacity screening, start with the 1–20 TPH gas-fired steam boiler guide; then review the industrial steam boiler sizing guide and the system piping diagram, the water-treatment and blowdown guide, and the boiler economizer selection guide before requesting a proposal.
Specify the complete plant
Estimate operating fuel demand with the gas boiler fuel-consumption calculator and compare WNS fire-tube and SZS water-tube arrangements. The gas burner for a steam boiler is only one part of the package. Feedwater, water treatment, economizer, condensate return, blowdown, stack, controls and safety devices must be coordinated as one operating system.
Technical FAQ
Questions buyers ask before quotation.
These answers explain the selection basis for a China-manufactured industrial steam boiler package.
Can one steam boiler use both natural gas and fuel oil?
A compatible dual-fuel burner can allow natural-gas and fuel-oil operation, but the exact burner, fuel train, controls and changeover sequence must be selected together. Fuel properties and applicable safety standards are required before confirmation.
How is industrial steam boiler capacity selected?
Start with peak, normal and minimum steam flow, operating hours, required pressure, feedwater temperature and future expansion. The load profile helps avoid oversizing and supports stable burner turndown.
What equipment is included in a complete steam boiler system?
A complete scope may include the boiler, burner and fuel train, feedwater tank and pumps, water treatment, economizer, condensate recovery, blowdown equipment, stack, valves, instruments and control cabinet. Scope boundaries are confirmed in the proposal.
What data is needed for a steam boiler proposal from China?
Send required steam capacity and pressure, fuel type and analysis, feedwater temperature, operating schedule, project country, altitude, power supply, emissions limits, code requirements and available plant-space information.
How is a gas burner selected for an industrial steam boiler?
Selection starts with minimum, normal and peak steam load, operating pressure, fuel composition and supply pressure, required turndown, emissions limits, altitude, ambient conditions, power supply and applicable code. The burner, fan, fuel train and controls must be matched to the boiler as one operating system.
When should a buyer choose a WNS fire-tube or SZS water-tube steam boiler?
WNS fire-tube packages are commonly evaluated for compact packaged duties, while SZS water-tube arrangements may suit higher loads, pressures or demanding operating profiles. The final choice depends on steam duty, load profile, pressure, code, transport limits and the available plant layout.
PROJECT DATA TOOLS
Prepare a technically useful steam-boiler quotation.
Download the fillable checklist or spreadsheet before requesting a configuration. Normal and peak steam load, pressure, fuel, water analysis, operating schedule, project country and required supply scope help our engineers prepare a clearer first proposal.
Start a project
Request a gas-fired steam boiler quotation
For a gas-fired or oil-fired steam boiler quotation, start with steam output (kg/h or t/h), required pressure, fuel and project country. If output is unknown, list the steam-using machines and operating hours. We will clarify burner supply, feedwater, condensate and included auxiliaries; mark missing values as "not known yet".