Hydac SB690 accumulators are high pressure bladder accumulators. They consists of a fluid section and a gas section with the bladder acting as the gas-tight separation element. The fluid around the bladder is connected to the hydraulic circuit so that the bladder accumulator draws in fluid when the pressure increases and the gas is compressed. When the pressure drops, the compressed gas expands and forces the stored fluid into the circuit.
Key summary technical data is as follows:
- Nominal volume: 1 to 50 litres
- Operating pressure: 690 bar (10,000 psi) – higher pressures on request
- Special marine and offshore versions available
- Standard temperature range: -10°C to +80°C
Please contact us for further technical details and configuration options, or if you cannot see the Hydac bladder accumulator that you need – we’ll be delighted to help!