UHMWPE flexible straight pipe, pipe for coal mine is difficult fouling: UHMWPE pipe have small friction coefficient and polarity; it has a good non-adhesion surface. Existing materials generally scale in the medium that PH value is more than 9, however ultra-high molecular weight polyethylene pipe do not, and the characteristic has great significance for fly ash system of the power plant. Advantage of UHMWPE flexible straight pipe, pipe for coal mine: 1, Wear resistance is the top of plastic, it is 4 ~ 7 times of carbon steel and stainless steel 2, Impact strength is the top of plastic, it is 2 times of PC, 5 times of ABS and can maintain at liquid nitrogen temperature (-196 degrees Celsius). 3, Self-lubricating, anti-adhesion, without fouling, low friction coefficient, can be comparable to PTEE 4, Impact energy absorption value is the highest of all plastics 5, Chemical stability, in a certain range of temperature and concentration it can resistant to various corrosive media and organic 6, Excellent low temperature resistance, remain has ductility at liquid helium temperature -269 degrees Celsius 7, Excellent resistance to internal pressure strength, resistance to environmental stress cracking，resistance to rapid crack 8, Health, non-toxic, can contact with the Food and Drug