Type SK High Pressure

HYDAC piston accumulators use nitrogen as the compressible medium with the piston acting as the gas proof screen.

The piston accumulator consists of a fluid section and a gas section with the piston acting as a gas-proof screen
The gas section is pre-charged with nitrogen
The fluid section is connected to the hydraulic circuit so that the piston accumulator draws in fluid when pressure increases and the gas is compressed
When the pressure drops, the compressed gas expands and forces the stored fluid back into the circuit

HYDAC piston accumulators can be used in a wide variety of applications and are also available in different pressure grades.

Function

Fluids are practically incompressible and cannot therefore store pressure energy. The compressibility of a gas is utilised in hydro-pneumatic accumulators for storing fluids. HYDAC piston accumulators are based on this principle, using nitrogen as the compressible medium.