Flexotherm™ Heated Sample Lines are used for Small Engine Testing to prevent condensation in the sample gas and maintain its original composition during transport to the analyzer. This is crucial for accurate emissions testing, as heating the line keeps the gas above its dew point, ensuring that components like water vapor remain in a gaseous state and don’t condense and fall out of the sample.

Emissions testing for small engines often involves measuring hydrocarbons, especially during cold starts. During these periods, the exhaust may contain a higher concentration of condensable hydrocarbons, making heated lines even more essential for accuracy. The EPA mandates specific test procedures and equipment, such as heated sample lines, to ensure the validity and reliability of emissions data for small off-road engines (SORE).