... water flux,Low energy consumption. 4, Long service life. BWT column hollow fiber membrane advantage1,PVDF material.high chemical stability.2 ... ,Outside-in filter tpye, saving cleaning water. low operating cost. Column hollow fiber membrane specification MBF4BUBF4Pure water flux(25 °C 0 ... Maximum backwash water quantity 3000L/H/Module 3000L/H/Module column hollow fiber membrane