He ʻāpana koʻikoʻi ia o ka accumulator, ka mea nui e hoʻokaʻawale i ka aila hydraulic a me ka nitrogen.ʻO ka ʻili o ka Diaphragm he ʻano matte, nā waiwai kino maikaʻi loa i ka wela kiʻekiʻe, ke kūpaʻa waimaka kiʻekiʻe, ke kūpaʻa aila maikaʻi loa, ke kūpaʻa kemika a me ka lōʻihi.