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once through steam generator
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once through steam generator
natural gas steam generator list
diesel oil fired steam generator
lpg gas oil steam generator

Once Through Steam Generator

Once through steam generator | Vertical steam boiler

LSS Once through steam boiler is vertical type boiler with small steam capacity, also named quick steam boiler/generator, two stage flame, it could generate steam within 3~5 minutes, is the embodiment of high technology

Output: steam
Capacity: 0.1-10ton, 50-7000kw
Horsepower 10-700bhp
Available Fuel: natural gas, lpg, heavy oil, diesel, biogas, dual fuel etc
Applied Industries: food, beverage, feed mill, textile mill, paper mill, packaged, refinery, chemical, laundry, hotel, greenhouse etc


fuel oil steam generator, gas steam generator

LSS series vertical gas/lpg/diesel oil fired steam generator also named once-through steam generator, quick steam boiler/generator, it could generate steam within 3~5 minutes.

Compare with steam boiler, steam generators provide a safe, reliable and more rapid method of steam generation for industrial user.


Widely used in industries such as food & beverage, dairy products, edible oil, starch, tea, feed mill, rice mill, garments, chemical, pharmaceutical, paper, textile, wood processing, packaging, dyeing, foam, refinery, tobacco, plastic rubber, oilfield, autoclave, EPS, leather, battery, concrete, washing powder, soap, cosmetic, bitumen, slaughthouse, hotel, laundry...

gas diesel steam generator working system


1. Fast Steam Generation
The boiler start up quickly, and could get stable temperature and enough pressure within a short time, steam is generated quickly.

2. High Thermal Efficiency
① The boiler is advanced once-through structure, and the small water capacity achieves fast heat absorption.
② The boiler adopts three-pass structure, absorbs the thermal expansion effectively.
③ Heat transfer fast ,reduce the heat loss , guarantee boiler efficiency

3. Advanced Burner
Equipped with high quality and reliable burner & original import , high combustion efficiency, low harmful gas emission and noiseless operation.

4. Safe Operation
Adopts automatic controller, operate conveniently and safely. The boiler has interlock protection system on water level, steam temperature, pressure, and flame out, etc.

5. Packaged compact structure & Small footprint
Adopts vertical structure, occupy small area, no need boiler room,reduce cost.

6. Convenient installation
The boiler is packaged delivery when leaving factory, so this boiler running only need to connect the water power, electric power, oil/ gas supply tube, and blowdown pipeline.ect


natural gas lpg diesel fired steam generator

Our 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.

Hot Boiler

Yuanda Boiler Product

About Our Company

■ Founded in 1956, a quality supplier assessed, certified and inspected by SGS Group
■ CE ASME DOSH EAC GOST TUV BUV ISO high standard boiler certification
■ More than 17 years of export experience, gold medal supplier, guaranteed payment and delivery.
■ Integrating research&development production and sales
■ Support video/VR or third party factory inspection
■ Best seller in 108 countries, more than 100,000 customers

WNS boiler factory

Quality Assurance

Steel element test→Steel rust cleaningWelding electrodes drying processAutomatic welding, argon arc welding, expansion welding etc. methodsNDT(Nondestructive Testing) including X-ray Test, Ultrasonic Test, Magnetic particle TestHydraulic pressure test.

FAQ of Steam Generator

1. How much fuel does the boiler use per hour?

Take 100kg natural gas steam generator as an example, the consumption per hour is 7.3m³.

2. Worried about the installation?

We have installation video, it is very easy to use.

3. Don't have other steam generator?

Yes, we have diesel steam generator, electric steam generator, waste gas steam boiler etc.

4. Do you have agent here?

We have agents and partners in some countries, will check list for you.


lss vertical steam boiler
Model Rated steam output(kg/hr) Rated steam pressure (Mpa) Rated steam temperature () Feed water temperature() Fuel consumption
Light diesel oil(kg/h) Natural gas(Nm3/h)
LSS 0.05 50 0.4 to 1.0 (4-10 in bar) 130184 20 3.4 3.7
LSS 0.1 100 0.4 to 1.0 (4-10 in bar) 130184 20 6.7 7.3
LSS 0.2 200 0.4 to 1.0 (4-10 in bar) 130184 20 13.5 14.7
LSS 0.3 300 0.4 to 1.0 (4-10 in bar) 130184 20 19.2 25.5
LSS 0.5 500 0.4 to 1.0 (4-10 in bar) 130184 20 32 42.5
LSS 0.7 700 0.4 to 1.0 (4-10 in bar) 130184 20 49.5 64.5
LSS 0.8 800 0.4 to 1.0 (4-10 in bar) 130184 20 49.5 64.5
LSS 1 1000 0.4 to 1.0 (4-10 in bar) 130184 20 65 84
LSS 2 2000 0.4 to 1.0 (4-10 in bar) 130184 20 136 148

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