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WNS Series Gas/Oil Fired Steam Fire Tube Boiler

Oil gas fired steam boiler adopts three returns wet back structure, taking natural gas, heavy oil, light oil as fuel and transferring the chemical energy to heat energy, is widely used in garment factory, textile factory, brick making plant, food processing plant, beer processing, rice milling field, chemical plant, pharmaceutical factory, etc.
Model: WNS
Rated Evaporation: 1-20T/H
Rated steam pressure: 1.25/1.6 Mpa
Rared steam temperature: 194/204°C
Designed Heat Efficiency: 93%-98%
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Product Introduction

The WNS series gas and oil fired steam fire tube boiler is a highly efficient, safe, and fully automatic heating solution designed to meet diverse industrial and commercial needs. With its advanced wet-back fire-tube structure and horizontal fast-assembly design, the boiler delivers stable performance, strong load adaptability, and reliable operation even under varying water quality conditions. Featuring a three-pass combustion system, large corrugated furnace, and spirally corrugated tubes, the WNS boiler maximizes heat transfer and minimizes energy loss. Equipped with an integrated economizer and optional condenser, it achieves thermal efficiency up to 98%, while keeping NOx emissions below 30mg/Nm³, ensuring both cost savings and environmental compliance.

Gas/Oil Fired Steam Fire Tube Boiler Technical Parameter

Model/Item WNS1.0-1.0-Y(Q) WNS2.0-1.25-Y(Q) WNS3.0-1.25-Y(Q) WNS4.0-1.25-Y(Q) WNS6.0-1.25-Y(Q) WNS8.0-1.25-Y(Q) WNS10.0-1.25-Y(Q) WNS15.0-1.25-Y(Q) WNS20.0-1.25-Y(Q)
Rated steam capacity(t/h) 1.0 2.0 3.0 4.0 6.0 8.0 10.0 15.0 20.0
Rated steam pressure(Mpa) 1.0 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25
Rated steam temp.(℃) 184 194 194 194 194 194 194 194 194
Inlet water temp.(℃) 20 20 20 20 20 20 20 20 20
Efficiency (%) 97~100 97~100 97~100 97~100 97~100 97~100 97~100 97~100 97~100
Power supply requirement (V/Hz) 380/50 or   customized
Weight (t) 4.87 7.8 9.6 11.8 17.3 21.6 25 36.9 44.7
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