direct buried PU foamed preinsulated pipe for steam   1.Advanced technology   Xingbang company has lines of polyurethane insulation pipe production line.  One-step method insulation pipe production line can deal with all kinds of  polyurethane pre-fabricated direct buried insulation pipe ranging from DN30 to DN1600mm. Our company independent developed “A new type of no stent direct-buried insulation pipe” and “A new type of cutting head insulation pipe”,  both of which have obtained the national patent.   2.Composition inner steel pipe ,the steel sheet is supplied by the qualified company Anshan Iron and Steel Group Corporation,and we manufacture the steel pipe by ourself,the steel pipes are comfirmed with the standard of GB/T8163 and GB/T9711 polyurethane insulation layer,be supplied by qualifed company of Bayer Jinling,and the raw material is fluoride-free foam HDPE outer protection pipe,the raw material is virgin granulate supplied by Shanghai Jin Fei Petroleum Chemical Industry Co.,Ltd and Tianjin Petrochemical Co.,Ltd                                                                      3.Application   be widely usd in urban centralized heat supply,warm room,coal mine,petroleum,chemical and other anti-corrosion and insulation industrial field,water,oil,gas transportation and so on.   4.Technology   ERW welded Corona treatment Shot blasting Leakage alarm line

We are professional manufacture of pre-insualted pipes in China for more than 20 years,Any interest,feel free to contact  me,Hily Yue