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Round liners
Rigid round liners are made of 0,6, 0,8 and 1,0 mm thickness acid-resistant stainless steel. Possible diameters can vary from 100mm to 1000mm. Longitudinal joint is plasma welded, ends of pipes are formed with hydraulic expansion machine which makes it easy to connect elements with each other and secure proper tightness of joints. As the heating of a thin-walled liner is more intensive, its temperature exceeds the condensation point very fast and this reduces condensation. Even smooth walls of chimney assure a high exhaust of combustion materials, and thus a part of non-condensed steam is removed as well. These liners are used for emission of the combustion products from appliances to the outside atmosphere (these products are formed as a result of firing gas, liquid and solid fuel). Ventilation liners are made of galvanized tin (thickness 0,6 and 0,8mm).
Rigid liners can be easily mounted from 1 m long sections and connected with each other using stainless steel clinchers and connecting support bands.
 
Single wall round liners technical parameters are given below, in table.
It is recommended to build new chimney 25x25 cm size. This allows an easy installation of a liner with suitable diameter.
Table. Materials used in manufacturing single wall liners, their technical characteristics, usage options
|
Material |
Mark |
Marking |
Usage options |
|
Acid-resistant stainless steel sheet |
EN 10088-2 - X2CrNiMo17-12-2/1.4404, thickness 0.6, 0.8, 1.0 mm, T600 |
NP |
To emit all fuel type combustion products |
|
Galvanized tin |
EN 10142- RAGAL 51 F DX51D+Z275 M-A
(EN 10142:2000) – thickness 0.6, 0.8 mm |
ZN |
Ventilation |
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