PEX fittings connection tips

Nevertheless, the strengths and weaknesses of the geometry of the heating coils are manifested at the site. At the beginning of the welding process is heating the heating coil. In the case of a closed heating coils should first melt a layer of PEX. Due to thermal expansion of the material PEX fitting in the molten state that the circular layer is closed. Only then is the energy transfer from the zone of welding of the pipe. This makes the heat transfer in the contact zone pipe-PEX fitting, because the layer of PEX, the closing spiral, a large proportion of the energy spent on heating the PEX fitting. The result is asymmetrical zone melt (Fig. 4) on the surface of contact with the pipe PEX fitting (asymmetrical ellipse), much of which is PEX fitting, moreover, decreases heat output required to fill the gap between the pipes and PEX fittings. Situation heating coil and the thickness of PEX layer, which, of course, have a major impact on the supply of heat to the pipe, can not be determined by the buyer during installation (this is possible only by destroying or by irradiating the details).