The pre-treatment system consists of filtering open sea water with the following treatments
FIRST STAGE
Self cleaning filter SCR L in SAF2205 80-15
Filtration 80 micron
Flow rate 25 mc/h
SELF CLEANING FILTER 80 MICRON
SECOND STAGE
Self cleaning filter SCR L in SAF2205 80-15
Filtration 20 micron WITH FILTER FABRIC 3D
Flow rate 25 mc/h
SECOND STAGE FILTRATIO 20 MICRON
THIRD STAGE
Cartridge filter melt blown PP 9″x 40″ Cartridge diameter 2″1/2
Filtration 5 micron
Flow rate 25 mc/h
RECENTLY THE SYSTEM WAS COMPOSED OF 80 MICRON SELF-CLEANING FILTER + 25 MICRON SELF-CLEANING FILTER (WITH MONOFILAMENT FABRIC). THE CHANGE OF FILTRING ELEMENT ON THE SECOND STAGE, FROM 25 MICRON MONOFILAMENT TO 20 MICRON 3D, HAS TAKEN TO EXTEND THE LIFE OF THE MELT BLOWN FILTER CARTRIDGES. WITH MONOFILAMENT 25 MICRON FABRIC FILTER CARTRIDGES WERE REPLACED EVERY DAY, WITH 20 MICRON 3D FABRIC CARTRIDGE CHANGE IS PASSED TO 4 DAYS.