A BOP accumulator unit (also known as a BOP closing unit) is one of the most critical components of blowout preventers. Accumulators are placed in hydraulic systems for the purpose of storing energy to be released and transferred throughout the system when it is needed to accomplish specific operations. BOP accumulator units also provide hydraulic support when pressure fluctuations occur. These fluctuations happen often in positive displacement pumps due to their operational functions of trapping and displacing fluid.