re hydropneumatic accumulators with a flexible bladder as a separation element between compressible gas cushion and operating fluid.HYDAC bladder accumulators consist of a welded or forged pressure vessel, the accumulator bladder and the fittings for the gas- and medium-side connection.In addition to the standard design, special designs for particular applications are possible, for example for very high discharge speeds and high pressures.Essential parameters are:Nominal volume: 0.5 . 450 l, Permissible operating pressure: up to 1, 000 bar, Materials for the elastomer: NBR, ECO, IIR, FKM (FPM), Accumulator shell materials: carbon steel, stainless steel, aluminium, composite materials. HYDAC bladder accumulators have the following advantages:High discharge speeds, No pressure difference between fluid side and gas side, Compact, low-maintenance, High charging and discharging frequencies.