|Qual-PEX pipe-in-pipe has been designed to help the installer comply with the current water regulations. Please note that regulations may state that pipes installed within solid floors should be able to be withdrawn and replaced if necessary. The inner pipe is white cross-linked polyethylene barrier pipe (Qual-PEX) for cold potable and hot water. Barrier pipe was developed to prevent gas permeating the pipe wall, through the wall. the pipe wall. The outer pipe is black high- density polyethylene pipe. The inner pipe is BSI kitemark approved for use under the service conditions listed in BS 7291-1:1990 Class S : - 12 bar at 20°C, 4 bar at 82° C, 3 bar at 92°C.|
Always use a plastic insert when connecting the inner pipe.