Horizontal Three Pass Wet Back Boiler
WNS gas/oil boiler adopts horizontal fire tube structure, which can provide larger steam/water output. Three pass wet-back design, larger corugated furmace, thread smoke tube with unique expansion welding technique, high quality and environmental protection.
| Output: | Steam, Hot-water |
| Capacity: | 0.1ton-40ton, 100kg-40000kg, 99kw-28000kw |
| Work Pressure: | 3-38bar, 0.3-3.8Mpa |
| Heat Temperature: | 0-450℃ |
| Applied Industry: | Food, Beverage, Feed, Textile, Paper, Chemical, Package, Refinery, Pharm, Building Material, Hotel... |
Introduction
WNS gas/oil fired boiler is a packaged type high-efficiency industrial steam(hotwater) boiler for continuous operation. It adopts a horizontal fire tube design, three-pass flue gas, water-cooled combustion chamber, and an external economizer, achieving a minimum thermal efficiency 98%, low flue gas temperature, save fuel at least 6% per hour.
Compliance with ASME, CE, ISO, EAC, DOSH, EN.
Yuanda Boiler providing complete boiler system, mainly composed of Yuanda design boiler body, Europe top-brand burner, Yuanda design high-matching PLC control cabinet, top brand instruments&valves, top brand water pumps, USA fleck brand water softener, high efficiency economizer, steam header, chimney and ducts, etc. It features clean combustion, pollution-free emissions, convenient operation and sufficient output.
01
High Security, 100% Safe Operation
①Anti-dry heating system with five stages water level check; ②Four stages pressure protection; ③Explosion-proof door with fire viewer; ④Remote monitoring system.
02
Double 12cm thickness aluminum silicate insulation layer
Assure the boiler surface temperatureis below 30°C, safety to boiler operator, and good work condition in boiler room, and great reduce heat loss.
03
Spirally corrugated furnace & Wet back structure
(1)Increased 10% heating area, avoid damaged by heat expansion. (2)Reduce the back tube sheet temperature and protect it from cracking.
04
Finned tube design economizer with aluminum silicate insulation
Increase 40°C to the feed water before boiler,reduce exhaust smoke temperature below 95 C,save fuel at least 6% per hour.
① SZS water tube steam and hot water boiler, 5-100 ton/h, water membrane wall design, high efficiency 98%, larger combustion furnace.
② LHS LSS Small gas/diesel boiler, vertical boiler, gas/diesel steam and hot water generator.
Company Introduction
■ Founded in 1956, a premium supplier assessed, certified, and inspected by SGS Group. Leading industrial boiler manufacturer in China.
■ Holds international boiler certifications: CE, ASME, DOSH, EAC, GOST, ISO
■ Over 17 years of export experience, gold-level supplier, ensuring payment and delivery.
■ Professional team integrating R&D, production, sales, and service.
■ 53,053㎡ Factory area, supporting video/VR factory audits or third-party inspections.
■ Engineers serving over 50 countries.
■ Products sold to over 130 countries/regions, covering food, beverage, textiles, paper, wood industries. Serving over 100,000 customers.
Services & Markets
■ Local Projects: We have installed many boiler projects in different countries, can provide boiler case studies.
■ High Repurchase Rate: 55% of our customers are repeat customers or referral customers.
■ Local Support: We have long-term, reliable local agents, can provide one-stop service from installation and training to maintenance.
■ Comprehensive Service: From project planning to after-sales support, we provide comprehensive support throughout the whole boiler life, with 24/7 online support and immediate response.
Quality Assurance
(1) Strength calculation report with applied materials information;
(2) 100%NDT(non-destructive inspection) report of steel plate, tube and welding rod;
(3) 100% X-ray inspection( (Longitudinal, transversal safety inspection)): ensure the quality of entire boiler;
(4) Hydrostatic test: ensure the standard working pressure and safety;
(5) Third-party inspection report
(6) Passed ASME CE ISO DOSH EAC GOST boiler level certificate.
Service
Pre-sale Service:
1. Design一We help customer to choose the best boiler model according to the different requirements of different industries.
2. Drawing and files一Supply quality certificates, factory-inspect, fuel consumption calculation, cost analysis, foundation drawings, layout drawings, boiler room drawings nased on your needs, etc.
3. Technical Solution一Design completed boiler solution with installation materials for your company.
4. Transportation一We have shipping partners and forwarder for lowest price and safe.
After-sale Service:
1. Provide a full range of boiler and original spare parts.
2. Overseas engineers installation and commissioning service is available.
3. Training in site, to ensure safe operation.
4. 24 hours online, quick respond.
5. Free maintenance and repair for one year and lifetime service.
Parameter
| Model | Capacity | Rated steam output | Rated pressure | Rated temperature | Feed water temperature | Fuel consumption | |
| (kg) | (Ton/hr) | (Mpa) | (℃) | (℃) | Light diesel oil(kg/h) | Natural gas(Nm3/h) | |
| WNS0.5 | 500kg | 0.5 | 0.4/0.7/1.0/1.25/1.6/2.5/3.0 mpa | 130～171 | 20/105 | 32 | 42.5 |
| WNS0.7 | 700kg | 0.7 | 130～171 | 20/105 | 49.5 | 51 | |
| WNS1 | 1000kg | 1.0 | 130～185 | 20/105 | 70 | 80 | |
| WNS1.5 | 1500kg | 1.5 | 130～185 | 20/105 | 108.7 | 115.4 | |
| WNS2 | 2000kg | 2 | 130～185 | 20/105 | 135.2 | 150.4 | |
| WNS3 | 3000kg | 3 | 130～226 | 20/105 | 192.9 | 212.1 | |
| WNS4 | 4000kg | 4 | 130～226 | 20/105 | 258.2 | 283.4 | |
| WNS5 | 5000kg | 5 | 130～226 | 20/105 | 323.5 | 354.7 | |
| WNS6 | 6000kg | 6 | 130～226 | 20/105 | 388.6 | 424.2 | |
| WNS8 | 8000kg | 8 | 130～226 | 20/105 | 514.6 | 566.3 | |
| WNS10 | 10000kg | 10 | 130～226 | 20/105 | 641.7 | 707.8 | |
| WNS12 | 12000kg | 12 | 130～226 | 20/105 | 768.9 | 849.3 | |
| WNS15 | 15000kg | 15 | 130～226 | 20/105 | 960.1 | 1061.7 | |
| WNS20 | 20000kg | 20 | 130～226 | 20/105 | 1276.2 | 1415.8 | |
| Model |
Rated heating capacity (mw) |
Rated working pressure (Mpa) |
Output water temperature (℃) |
Return water temperature (℃) |
Fuel consumption | |
| Light diesel oil(kg/h) | Natural gas(Nm3/h) | |||||
| WNS 0.35 | 0.35mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 31.6 | 36.6 |
| WNS 0.7 | 0.7mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 60.4 | 69.3 |
| WNS 1.4 | 1.4mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 122.8 | 146.1 |
| WNS 2.1 | 2.1mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 192.3 | 227.1 |
| WNS 2.8 | 2.8mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 246.1 | 286.5 |
| WNS 4.2 | 4.2mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 367.1 | 412.6 |
| WNS 5.6 | 5.6mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 490.2 | 543.7 |
| WNS 7.0 | 7.0mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 593.6 | 660.7 |
| WNS 10.5 | 10.5mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 936.5 | 998.8 |
| WNS 14 | 14mw | Atmospheric pressure/0.7/1.0/1.25/1.6 | 85~130 ℃ | 70/60 ℃ | 1200.8 | 1330.7 |
| Note: for place limited, we didn't list all models, if you need other capacity, pressure, fuel, please send us inquiry directly, we will send you detailed parameter. | ||||||
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