specification of concrete pump rubber hose item inch type ID(mm) wall thickness(mm) OD(mm) working pressure bar bursting pressure bar max vacuum bar bending radius(m) weight kg/m max length m flange kg per one transport concrete cubic meter 2.5 high pressure 63.5 16 96 105 136 0.8 0.8 6 4 3.6 2000 3 high pressure 96.2 16 108 105 136 0.8 0.8 7 6 4.2 3000 4 high pressure 102 16 135 105 136 0.8 1 9 9 5.6 6000 4 high pressure 102 17 138 105 136 0.8 1 10