Bladder-type accumulator HAB

Bladder type accumulators are used for energy storage, shock and vibration absorption and leakage oil or volume compensation in hydraulic systems. They consist of a seamless cylindrical pressure container made of high-strength steel. The elastic bladder mounted inside the container separates the accumulator into a gas side and a fluid side. Via the gas valve, the bladder is filled with nitrogen up to the intended gas filling pressure. The oil valve which is located inside the oil port of the bladder type accumulator, closes if the pressure on the gas side is higher compared to the fluid side. When the operating pressure is increased, hydraulic fluid flows into the accumulator and compresses the gas until the gas pressure is identical to the fluid pressure. When the operating pressure is reduced, the gas expands again and in this way feeds the hydraulic system with hydraulic fluid.