The stainless chimney is a metal exhaust stack made with stainless steel plates or stainless inner liners for boiler gas, acidic exhaust, VOC treatment gas, and biomass flue gas. Stainless steel helps resist moisture, acid substances, and chemical corrosion in many industrial environments, so it is used when paint-coated carbon steel may need frequent repair. The chimney can be designed as a single tube, double-layer insulated type, or tower-supported stack. Diameter, wall thickness, insulation layer, platform position, and outlet height should be set by gas flow, temperature, corrosion grade, and site layout.
Product Parameters
|
Parameter |
Details |
|
Material option |
SUS304, SUS316L, or stainless inner liner with outer support shell |
|
Diameter |
Customized, commonly matched to fan air volume and outlet speed |
|
Structure |
Single wall, double wall insulated, cluster, or tower-supported |
|
Temperature use |
Selected by stainless grade and insulation design |
|
Corrosion focus |
Moisture, acid gas, chloride content, and condensate control |
|
Accessories |
Flange, manhole, drain port, platform, ladder, lightning protection |
Components
1. Inner stainless cylinder contacts the flue gas and should be matched with the corrosion grade.
2. Outer shell, insulation layer, support rings, and platform brackets can be added when the stack needs heat control or extra strength.
3. Flanges, drainage points, and manholes make the stainless chimney easier to inspect and clean during use.
Product Advantages
1. Stainless steel reduces the need for repeated coating repair in wet or mildly acidic exhaust conditions.
2. A double-layer design can reduce surface temperature and lower condensation risk around the stack wall.
3. Sectional production allows large chimney bodies to be transported and lifted with clearer site steps.
FAQ
Q: Is 304 stainless steel always enough?
A: No. Gas composition, chloride level, temperature, and condensate condition should be checked before choosing 304 or 316L.
Q: Can insulation be added?
A: Yes. Insulation thickness can be selected by flue gas temperature and surface temperature control needs.
Q: Where is the stainless chimney often used?
A: It is often used in boiler rooms, chemical exhaust systems, biomass boilers, and wet flue gas treatment systems.
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