Are the threaded connections North American threads? Are the flanges North American bolt patterns?
1. Does the pipe meet flame-spread and smoke development tests? Can I use it in a plenum? The pipe itself meets the 25 flame-spread requirement, but the listed smoke development rating is well over 100. The smoke from burning polypropylene is non-toxic, producing only carbon dioxide and water vapor in a fully developed fire. However, the smoke development test only measures visible smoke rather than the toxicity of that smoke, so Aquatherm has developed a number of options that allow the pipe to meet the 25/50 rating. The widest ranging solution is the application of a “No-Fire” coating. No-Fire is fire-resistant paint that Aquatherm factory-applies to lengths of Aquatherm-Greenpipe and Climatherm pipe. The coated lengths of pipe were tested and passed with the fittings uncoated, so no extra consideration for valves and fittings is needed. The No-Fire coating can be field applied in case the factory coating is damaged during installation or shipping. The No-Fire coating can be applied
