Calculate accumulator Many different factors impact on calculations for accumulators. The calculations below should only be used to obtain estimates. The assumptions used in the calculations are rapid (adiabatic) charging and discharging, i.e. the time is less than three minutes.Polytropic exponent = 1,5. INPUT DATA AND RESULTS Separate decimals with a decimal point.Omit input data in the field you want to calculate! Required input is missing! Highest working pressure = bar Lowest working pressure = bar Accumulator volume l Working volume l Charging pressure bar PMC Hydraulics Group AB accepts no liability for the consequences that any errors in formulas and software may have!© PMC Hydraulics Group AB 2019