Pulsation dampeners are used to enhance the performance of chemical feed pumps and systems by minimizing vibrations in the chemical lines and reducing the wear on the chemical feed pump. The dampener operates by having a compressible gas on one side of the diaphragm; the other side is connected to the process fluid. As the pump discharge occurs, the compressed gas absorbs the pressure surge. As the pump moves into the suction stroke, the compressed gas expands forcing liquid out of the dampener and keeps the fluid moving in the discharge line. In this way, the pressure spikes are kept out of the chemical dosing system.
