This production line is used to production PE heat shrink sleeve, which is used to connect pre-insulated pipe systems.
Heat Shrink Sleeve is expanded PE-material with an elastic "memory", which causes the joint to regain its original dimension after shrinking.
This equipment is used for production of PE heat shrinkable joint sleeves(couplings) that serve to isolate the joint of steel pipes in PPU insulation during underground laying of a thermally insulated pipeline in a protective PE shell pipe.
The heat shrinkable sleeve is a stretched PE material with an "elastic memory" of the polymer, which makes it possible to restore the original size after shrinking. The shrink sleeve tightly seals on the ends of polyethylene protective sheaths(PE jacket pipe) for the PPU insulation.