Roll Sheath Yellow for Gas

The UNI CIG 7129 (Design rule) requires that all pipes conveying gas (copper pipes, PE etc.). Undercurrent in (in walls and floors) should be coated with SHEATH AUTOESTINGUENTE. Are referred to as protective sleeves for gas pipes in concealed. II material (HDPE) used for the construction of single wall corrugated sheaths yellow, and admixed with suitable substances that make AUTOESTINGUENTE