The difference between the Triple Evacuation and the Triple Evacuation with Double Sweep is that when you are breaking the vacuum the first two times with nitrogen, you are flowing nitrogen at 3 to 5 CFH (Cubic Feet per Minute) for 5 minutes and not just bringing the system nitrogen pressure up to 5 PSIG for 5 minutes. This helps push any water.. Triple evacuation is a highly effective process used to rid refrigeration systems of moisture and contaminants. This method involves three separate cycles of evacuation, each designed to ensure that the system is thoroughly cleared of any residual air and moisture. The goal of triple evacuation is to achieve a vacuum level that is significantly.
The triple evacuation method is also called the triple sweep method, the dilution method, and the blotter method. Figure SP-3-3 shows the sequence of the triple evacuation process. As shown in Figure SP-3-4, the triple evacuation process takes about three hours when performed as recommended. This time can vary depending on how deep a vacuum is.. Proactively, Triple Evacuation can be done as a planned process. This could be done as practice on all systems, or you may want to do this if you are aiming for a very low Micron Range below 100 Microns, or if you anticipate needing to remove considerable moisture from a system. Here are the steps to Triple Evacuation: Evacuate to 1000 Microns.