Portable ejectors have been found to be indispensable on bulk carriers, lube-oil tankers and chemical carriers where it is essential to empty tanks completely. It is also extremely useful on all other types of ships for mopping up the last few barrels of liquid from tanks, holds, cofferdams or other compartments when stripping is required. These ejectors are powered either by water or by the liquid which is being pumped. Normally made of bronze with a stainless steel nozzle. One standard nozzle and an extra nozzle for lower driving pressure are attached as standard accessories.