Applications & Industries
Accumulators can take a specific amount of fluid under pressure and store it. The fluid is then released when it´s required to perform a specific task in the hydraulic system. Accumulators can provide several functions, such as:
- Energy storage
- Compensation of leakage oil
- Compensation of temperature fluctuations
- Emergency operation
- Cushioning of pressure shocks which may occur at sudden switching of the valvesList Item
- Dampening vibrations
- Swell compensator (in marine hydraulics)
- Possibility of smaller pumps
- Lower installed power
- Less heat produced
- Increased service lifetime
- Immediate availability
- Unlimited storage life
- No fatigue
- No inertia
Applications that utilize large flows at high speeds may use accumulators for energy storage. When required, the accumulator pushes fluid into the hydraulic circuit to add to the pump flow. When the actuators in the hydraulic system are not in motion, the accumulator will refill. Accumulators can also operate as energy sources during normal operation of the system (i.e. cushioning).
Accumulators that are weight- or spring-loaded can also be used in industrial applications. For example, a gas-pressurized hydro-pneumatic accumulator, which has a gas-tight separating element, is most commonly used. Without a separating element, the fluid can absorb gas. The gas used is nitrogen; this prevents danger of explosion in case of leakage of the bladder, diaphragm or piston.
Major Applications:
- ENERGY & PUMP MAINTENANCE SAVINGS
- Reduction of pump capacity requirements which provide long term energy savings and lower pump maintenance costs.
- SURGE CONTROL & SHOCK ABSORBERS
- Pulsation dampening and noise reduction caused by pumps and “water hammer”.
- ELIMINATE SUDDEN PRESSURE DROPS
- Maintain constant pressure on a hydraulic system such as a press line where multiple presses are opened and closed at different times.
- THERMAL EXPANSION
- Compensates for pressure variations caused by temperature changes within a hydraulic circuit.
- COMPENSATES FOR PRESSURE VARIATIONS CAUSED BY TEMPERATURE CHANGES WITHIN A HYDRAULIC CIRCUIT
- Provides stored fluid power for operation of hydraulic equipment power failure.
