Concrete Pump Straight Pipe is generally divided into DN80,DN125 and DN150. DN80 pipe is mainly for sand blasting; DN125 and DN150 are mainly for concrete handling and delivery.also both have high pressure and low pressure types. Product Name Single Wall Concrete Pump Straight Pipe and Fittings Material 20# ST52 16Mn 65Mn Length 3m (customizable ) Model Number DN125 Weight 22.96kg/m Thickness 4-7mm Reference lifetime 25,000-40,000CBM Flange type SK148mm SK157mm Surface treatment induction hardened+heat treatment Hardness 65HRC Working pressure 85-125bar Connection type clamp connection Cleaning way use cleaning ball Product Description Single