External protective layer: glass fiber protective layer thermal insulation layer: polyurethane rigid foam insulation layer work steel pipe: spiral steel pipe
Spiral glass fiber outer protection polyurethane insulation pipe is usually installed on the ground or above the water surface to convey gas, liquid or loose solid. It has the excellent characteristics of high efficiency heat preservation, waterproof, anticorrosion, heat insulation, sound insulation, flame retardant, cold resistance, anticorrosion, high strength, simple and quick construction, etc. it is used for various indoor and outdoor pipelines, central heating pipelines, cold insulation projects, etc.
Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made by rolling low carbon structural steel or low alloy structural steel strip into tube blank according to certain helix angle (called forming angle), and then welding the pipe seam. It can produce large diameter steel pipe with narrow steel strip.
Glass fiber is a kind of inorganic non-metallic material with excellent performance. It has many kinds, such as good insulation, heat resistance, corrosion resistance and high mechanical strength.
Polyurethane is made by chemical reaction foaming of high function polyether polyol compound and polymethyl polyphenyl polyisocyanate.