Abstract: In the present research experimental data on heat transfer are obtained for the condensation of almost pure steam on vertical tubes (polished is gold plated). The condenser pipe is a 12 mm outer diameter, 96 mm condenser length tube. The experiments were carried out at steam pressures of 0.15, 0.2, 0.25, 0.3, 0.35, 0.4 and 0.45 bar, cooling water temperature difference varied from 17-19°C and steam generator is rang 900, 1200 and 1500 W. In this research, the high rate of heat transfer on the steam-to-wall temperature variance (difference) for dropwies condensation of steam on the vertical tube are determined experimentally for several pressures range. The experimental results are compared with film condensation results at different pressures, the dropwise condensation showed much higher heat transfer rates and film coefficients rate than corresponding filmwise condensation by 3-4 times. However, the dropwise condensation showed even higher condensation rate than filmwise condensation with the different steam pressures. The drowpwise condensation showed that it gradually, increases in the rate of heat transfer as the steam pressure increased and as the cooling water rate decreased.