



Main Features
SZS series boiler is designed with longitudinal double drums and " D " type chamber structure. Furnace is placed on the right and convection tube bank is on the left, super heater is arranged at convection tube bank. The body is fixed on the basement by middle and both end flexible supports and make the boiler expand horizontally sideways. Around the furnace is membrane water cooling tube wall. Furnace and tube bank are totally separated by the membrane water tube cooling wall at the left side of the furnace. The back part of bundle is sparse shift structure, front part is aligned structure. Smoke from furnace outlet enters re-burning chamber, convection tube bank area and then from left front part enters spiral fine coil economizer and condenser, and finally is discharged to atmosphere through chimney.
Model:SZS Type Gas/Oil Fired Steam Boiler
Structure:WaterTube Three Pass
Rated Steam Capacity:10-50 ton/hr
Rated Steam Pressure:1.25/1.6/2.5 Mpa
Rated Steam Temperature:194/205/220C
Application:Textile Mill,Food and Beverage,Chemical,Medicine,Light Industry,Rubber,Printing and Dyeing Plant,Paper Mill,Wood Processing,Garment and Laundry etc.

Model No. | SZS10-1.25-Y/Q SZS10-1.6-Y/Q SZS10-2.5-Y/Q | SZS15-1.25-Y/Q SZS15-1.6-Y/Q SZS15-2.5-Y/Q | SZS20-1.25-Y/Q SZS20-1.6-Y/Q SZS20-2.5-Y/Q | SZS25-1.25-Y/Q SZS25-1.6-Y/Q SZS25-2.5-Y/Q | SZS30-1.25-Y/Q SZS30-1.6-Y/Q SZS30-2.5-Y/Q | SZS35-1.25-Y/Q SZS35-1.6-Y/Q SZS35-2.5-Y/Q | SZS40-1.25-Y/Q SZS40-1.6-Y/Q SZS40-2.5-Y/Q |
Rated Evaporation (T/h) | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
Rated Pressure (Mpa) | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 | 1.25/1.6/2.5 |
Rated Steam Temp. (ºC) | 194/205/220 | 194/205/220 | 194/205/220 | 194/205/220 | 194/205/220 | 194/205/220 | 194/205/220 |
Efficiency | >98% | >98% | >98% | >98% | >98% | >98% | >98% |
Diesel Consumption (Kg/h) | 583 | 868 | 1148 | 1439 | 1739 | 2030 | 2318 |
Natural Gas (Nm³/h) | 704 | 1045 | 1383 | 1739 | 2090 | 2450 | 2787 |
Weight (T) | 31 | 41 | 49 | 53 | 65 | 72 | 81 |
Overall dimensions (L*W*D(mm)) | 7050*3350*3400 | 8700*3350*3400 | 9400*3600*3600 | 11000*3600*3800 | 11000*3800*4000 | 12000*4000*4200 | 12400*4400*4600 |




Safety
Environmental protection
Combustion chamber uses full membrane water cooling wall structure and pressurized combustion without smoke mixture.
Energy conservation
Good quality alumina silicate fiber and fire clay insulation material are used and the boiler body temperature is controlled below 45ºC and greatly heat loss is reduced. Combustion chamber is designed with narrow distance tube membrane water cooling wall which has good air proof to reduce heat lost and increase boiler thermal efficiency. Internal inspection holes uses high-alumina refractory and manhole cover seal devices, solving superheat problem in this part caused by using refractory bricks.
Convenience
Manholes are placed on the front and back side of drums and inspection doors on back side of boiler easy to open for inspection and clean inner and outer parts.
Longer lifespan
Membrane structure are used in the front and back wall for boiler body and highly increased their lifespan to over 20 years.
The key processes including material cutting, rolling, drilling are done by advanced CNC machining process to reduce the assembly stress and extend boiler service lifetime.
Flutter prevention fastener is used for high temperature part convection tubes, which avoid convection tube cracking problem.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will be tested by radiographic inspection.








Answer:(1)English manual, drawings are supplied with boiler.
(2)Engineers are able to instruct installing and commissioning abroad.
Q2: What are the main products?
Answer:(1)Oil fired steam boiler, capacity from 0.1t-20t
(2) Gas fired steam boiler, capacity from 0.1-20t
(3) Electric steam generator, capacity from 36kw-28800kw
Q3: How to insure your product quality?
Answer:(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(welding seam): ensure the quality of entire boiler;
(4)Hydrostatic test: ensure the standard working pressure and safety;
(5)Third-party inspection report;
(6)Passed ISO, ASME certifications