At the Al Kharafi Steel plant, one of the leading companies in the iron and steel industry, in order to provide process water with the desired specific criteria to be used during the production phase, taking into consideration the high efficiency and low operating costs, the pre-filtration with a capacity of 1.300 m3 / h, 90st pass with a capacity of 3 m1 / h reverse osmosis and a second pass reverse osmosis system with a capacity of 10 m3 / h have been designed. The assembly and commissioning process has been completed by our experienced technical team.