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  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler
  • WNS Series Oil Gas Fired Tube Boiler

WNS Series Oil Gas Fired Tube Boiler

Capacity/Hot: 0.5-20t/h
Pressure: 0.7Mpa-1.6Mpa | 7bar-16bar
Certificate: CertificateISO, GSG, CE, BV
Fuel: Gas, Heavy/Light oil, Diesel oil, Natural gas,diesel
Email:  [email protected]


Sitong WNS series gas oil steam boiler is horizontal three-return fired tube steam boiler with wet back structure. The high temperature flue gas injected into the atmosphere after convection heat transfer through the reversal chamber into the first flue tube bundle, and then from the front smoke box with turning 180℃ into the second flue tube bundle. The structure of Sitong WNS Series steam boiler is compact and reasonable. This boiler is composed of three parts: boiler body, chimneys and piping systems. Boiler body and chimney are manufactured in our factory, and piping systems are installed when the boiler arrives at the destination, the technical team could help to install the boiler or offer the technical support if necessary. Moreover, the quality of the boiler can be guaranteed.

WNS Series Oil Gas Fired Tube Boiler


Packaged fire tube boiler has compact structure and small size, it is usually used for heating and industrial process applications with small steam capacity. According to the characteristics of compact structure, safe operation, convenient installation, low pollution and low noise, the steam boiler could be used for medicine, chemical, light industry, textile, building material, cultivation, food and beverage, plastic foam, printing,dyeing and washing, rubber processing, paper products, wood processing, hotel, clothing and leather manufacture etc.


1. Sitong patented technology

  100% completely butt welding, minimum stress, and the quality is more reliable.

2. Large diameter corrugated furnace

  Combustion chamber is composed by large diameter full corrugation furnace, large combustion space, sufficient combustion.

3. Enough heating power

  Boiler heating area is >25㎡/ton, it can absorb effective heat sufficient, low exhaust gas temperature,small heat loss,ensure enough heating power and highefficiency.

4. High steam quality

  Large steam space volume and enough height of the net distance between steam water interface and steam outlet.

5. Multi-function safety explosion proof equipment

  Equipped with explosion proof equipment, which can prevent fuel occur deflagration in furnace, discharge high energy. Moreover, it has the fire sight glass and inspection gallery,

  it isconvenienforfurnace checking and maintaining.

6. Advanced automatic control

  Boiler controller use Siemens/Delixi electrical element, reliable property. Automatic control on pressure, water temperature, and smoke temperature, etc, ensure safe operation.

7. Convenient to maintenance

  There is a manhole on the top of the boiler,and some special hand hold device at middle and lower position of boiler front and back end, it’s convenient for boiler

  internalinstallation, inspect and clean.

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Model Rated evaporation capacity (t/h) Rated steam pressure (Mpa) Rated steam temperature (℃) Water supply temperature (℃) Heating area (m²) Thermal efficiency (%) Fuel consumption
Light oil (Kg/h) Natural gas (Nm³/h)
WNS1-0.7/1.0-Y(Q) 1 0.7/1.0 170/184 20 25 >90 66.5 75
WNS1.5-1.0/1.25-Y(Q) 1.5 1.0/1.25 184/194 20 36 >90 99 112
WNS2-1.0/1.25-Y(Q) 2 1.0/1.25 184/194 20 60 >90.2 133 150
WNS3-1.0/1.25-Y(Q) 3 1.0/1.25 184/194 20 77 >90.5 196 225
WNS4-1.0/1.25-Y(Q) 4 1.0/1.25 184/194 20 113 >91 266 300
WNS5-1.0/1.25-Y(Q) 5 1.0/1.25 184/194 20 127 >91.3 332 375
WNS6-1.25/1.6-Y(Q) 6 1.25/1.6 194/204 20 181 16 399 450
WN8-1.25/1.6-Y(Q) 8 1.25/1.6 194/204 20 190 >91.6 532 600
WNS15-1.25/1.6-Y(Q) 15 1.25/1.6 194/204 20 346 >91.8 997 1125
WNS20-1.25/1.6-Y(Q) 20 1.25/1.6 194/204 20 467 >92 1204 1418
Note: Parameter is for reference only, we can design the boilers based on customers’ needs.

Sitong Certificate



    Contact us now if you have any question about our company and products [email protected]. Any of your inquiry and suggestion will be highly appreciated. We will keep your information completely private.

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    Hot water/oil Steam
    0.7-14 MW
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    0.1 t/h-2 t/h
    4 t/h-10 t/h
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