Accumulators

Accumulators are an essential element in modern hydraulics. Hydro-pneumatic accumulators use compressed gas to apply force to hydraulic fluid using different construction elements to separate the gas side from the fluid side. Bladders use a flexible closed membrane, diaphragms use a flexible open membrane and pistons use a moveable piston with a sealing system.

Characteristics of HYDAC Accumulators

Bladder Accumulators

• High discharge velocities
• No pressure differential between fluid side and gas side
• Compact and low maintenance
• High charge and discharge frequencies

Diaphragm Accumulators

• Function-optimized and weight optimized design
• Unlimited choice of installation positions
• Low maintenance and long service life

Piston Accumulators

• Minimal pressure differential between fluid side and gas side
• Large effective volume
• Variable installation position
• Monitoring of the piston position possible using a variety of systems
• Particularly suitable for back-up configurations
• Extreme flow rates
• No sudden discharge of gas when seals are worn