An experimental setup was designed to find out behavior of deposition thickness of corrosion products. This experimental setup is designed on the bases of ITER (International Thermonuclear Experimental Reactor) loop. The experiment was done for different values of pH to study its effect on the deposition thickness. System pressure was kept at 0.5 MPa with maximum limit of temperature at 150°C. The pH value was kept in the range of 7.00–10.50. Artificial corrosion particles (Fe3O4) were introduced manually in the loop, which was allowed to stabilize. Four test tubes were used to determine the thickness of deposition, and the temperature at these points were measured by thermocouples. It is also very important to determine the temperature distribution around such points, in order to establish its relationship with pH and deposition thickness. Results show that the change of temperature and pH (of coolant) have a strong effect on deposition thickness. The temperature distribution, found in the various components of the experimental loop, will be used to correlate its relation with the deposition thickness and the coolant pH in future studies.