Polyurethane foam insulation pipe is combined of high functionality polyether polyols,Website:http://www.ausinpipeline.com, and formed after the chemical reaction.Composition of the insulation pipe: 1. Steel pipe. 2. Polyurethane insulation. 3. High-density polyethyleneFeature: Light Weight, High strength, thermal insulation, sound insulation, fire retardant, cold resistance, anti corrosion, non water absorbent, easy installed, keep the temperatureApplication: Widely used in the urban centralized heat supply, warm room, coal, petroleum, chemical and other industries, anti-corrosion insulation work.Medium temperature 50-140centigradeWorking pressure < 1.6MpaWorking lifetime 30-50yearsTechnology: 1. Advanced Corona treatment. 2. Impeller blasting. 3. Leakage alarm lineStandards CJ/T114-2000, CJ/T155-2001, EN253: 2003, Advantages of the fireproof underground insulation pipe1. Good insulation properties, low heat loss (the 25% of traditional pipes), 2. Energy saving 3. Waterproof and corrosion resistance 4. No trench, be directly buried in ground or water