The addition of a vibration absorber to structures exhibiting undesirable vibrations can provide a cost-effective and low-risk solution for vibration mitigation, provided it is properly designed and installed at an appropriate location. In this study, vibration reduction in a 6-inch process piping system within a petrochemical facility is investigated. To control the vibrations, a cantilever beam with a concentrated mass at its free end, referred to here as a beam-type dynamic vibration absorber (beam DVA), was employed. One of the main innovations of this research is the modeling of the beam DVA within the CAESAR II software and its coupling to the process piping system as a dynamic component. In the modeling, the application of appropriate boundary conditions to accurately simulate the dynamic behavior of the beam DVA is of critical importance. The modeling results demonstrated that the implementation of the optimally designed beam DVA could reduce the pipe’s displacement amplitude by up to 56%. Subsequently, a physical prototype of the beam DVA was fabricated and installed on the actual piping system. Field measurements conducted on-site revealed a 65% reduction in displacement amplitude, corresponding to a 9% deviation from numerical modeling performed using CAESAR II. These findings indicate a satisfactory agreement between the modeling and the experimental observations