Chlorine is injected into water in one of three elemental states (gaseous), sodium hypochlorite solution, and calcium hypochlorite powder, granules, or tablets, and all three forms of chlorine remain in the water. Among the three modes, the gaseous mode is considered due to its higher purity and short contact time. Shalodeh Ab company is known as one of the pioneers in the production of chlorine gas injection systems in Iran and the world. Due to the importance of paying attention to safety issues in chlorine gas injection systems, the products of this company are equipped with safety systems and leak notifications. High quality, compliance with safety principles, optimal support, and specialized performance in the field of chlorination have been factors that have made the products of this company used in many industrial complexes across the country for many years.