The piston accumulator is a diaphragm type hydraulic energy storage device. It can be used to stabilize the pressure to eliminate the pulsating impact of pressure in the oil circuit system. It can also be used as a hydraulic storage and supply device. The accumulator can release the working oil in a short time to supplement the insufficient oil supply of the pump and unload the pump periodically. The accumulator has the advantages of long service life, oil and gas isolation, and oil is not easy to oxidize. The disadvantage is that there is slight friction loss on the piston.

The viscosity of working oil used for components is 10~100cSt, and ISO VG46 hydraulic oil is recommended. The normal oil temperature is within the range of 10~60 ° C. When the oil temperature is low, the oil with low viscosity can be selected. Check the oil performance regularly and replace it.

The accumulator shall be installed vertically, with the gas valve end upward and away from heat sources. The accumulator must be firmly fixed, and welding is not allowed on the body.

Inert gas, such as nitrogen, shall be filled. Oxygen, compressed air or other flammable gases shall not be filled.

The accumulator shall be charged with nitrogen after it is installed. When inflating, open the valve as slowly as possible to push the piston to the end. If there is no abnormal phenomenon, make the inflation pressure reach 80% - 85% of the minimum operating pressure of the hydraulic system, and check whether there is air leakage.

After the accumulator is inflated, all parts must not be disassembled or loosened to avoid danger.

If it is necessary to remove the cover of the accumulator, the gas must be discharged first, and only after it is confirmed that there is no air pressure can it be removed.

The filtering accuracy of the system is required to be no less than 80 μ m。

During moving and handling, the gas must be exhausted.

It should be checked once a week after initial inflation and once a month thereafter.

After 3-6 months of use, the end cover shall be removed, the piston shall be taken out, and the O-ring and other seals on the piston shall be checked for damage. If they are damaged, they shall be replaced in time to ensure the sealing performance.