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 WNS Fire Tube Boiler  Three Pass Boiler 

Global Sale Boilers Qualified With ISO CE ASME DOSH EAC Certificates.

WNS fire tube boiler, horizontal type furnace combustion boiler with gas/oil burner. Its fire-tube boilers and flue gas three pass boiler, special wet back structure make sure long using lifespan.

WNS Horizontal Three Pass Wet Back Boiler

 Advantages  WNS boiler features 

1. 100% Safety Control Boiler & Strict Boiler Quality Control

1) All welding strictly meet the requirements of China NB/T 47014(JB/T 4708)

2) Anti Dry Heating Control System with double safety valves, double water level gauges, double secure of safe operation

3) With explosion-proof door with fire viewer, If burner failure ignition, this door can release the pressure out, protect the damage to welding parts

2. Energy Saving & High Efficiency

1) Spiral fire tube, the advanced technology, to enhance the boiler thermal power 10-15% higher than normal, and avoid the spiral tube from ash deposition and wearing

2) Spirally corrugated furnace & Wet back structure, increased 10% heating area, avoid damaged by heat expansion, reduce the back tube sheet temperature and protect it from cracking

3. High Quality Steam-Wetness Below 1%

1) We equip a steam separation under the steam output port.

2) With continuous water feed function,Make the water level is stable instead of  big differences

3) Bigger water tank design, boiler with bigger water volume and bigger steam space

  Boiler & Accessories 

Boiler, Burner, Control Cabinet, Water Softener Device, Water Pumps, Economizer, Steam Header, Chimnery, Valves & Gauges Instruments...

 Catalogue   All Products 

1. Gas boiler, Lpg boiler, Diesel boiler, Heavy oil boiler, Dual fuel boiler, Exhaust gas waste heat recovery boiler

2. Coal boiler, Charcoal boiler, Wood boiler, Biomass boiler, Pellet boiler, Ricehusk boiler, Palm shells boiler

3. Electric boiler, Electric steam generator, Electric hot water boiler,

4. Thermal Oil Heater Boiler, Thermic Fluid Heater, Hot Oil Boiler. (Powered by gas, diesel, electric, coal, wood biomass)

5. Steam Boiler, Hot Water Boiler, Steam Generator Boiler, Combined Heat and Power Boiler, Superheated Steam Boiler

 About us   Yuanda Boiler 

1. Our company established since 1956, over 65 years manufactureing experiences, 15 Years export experience.

2. Qualified by ASME, CE, ISO, EAC, DOSH, TUV, BUV, Ensuring High Quality and Compliance with International Standards.

3. Global service team for boiler solution, boiler design, order contract, boiler delivery, boiler install and commissioning.

4. Until now, our products have been exported to 132 countries all over the world, trustable quality & services for lifespan.