Reduce the vapor pressure of the fluid, and deliver it to a RVP given as a characteristic of technical, ... in such a way that one of the two phases of the fluid to prevent.
RVP a certain method to specify the type of cuts hydrocarbon. in the method of Reid a fluid hydrocarbon in a chamber with variable pressure to be placed and the temperature oC 8/37 heated, after a while, push the top of the fluid proved to this pressure, RVP fluid can determine. In other words, the RVP can be used as the vapor pressure of the fluid in equilibrium with the liquid phase at a temperature (oF 100) oC 8/37, which is less than the ambient pressure can be defined in such a way that in terms of transfer and maintenance in the area of the single fuzzy liquid used. The amount of RVP in seasons warm and cold years due to the change in the amount of compounds forming the flow of hydrocarbon will vary this amount for the winter season, about psia 12 for the summer season about psia10.