Hydraulic Accumulator
Applications

A hydraulic accumulator is a pressure vessel that performs multiple tasks in a hydraulic system. It is used to maintain pressure, store and recapture energy, reduce pressure peaks, power chassis suspensions, and dampen shock, vibration, and pulsations.

1. Main Functions

• Energy Storage: Stores potential energy to supplement pump flow.
• Emergency Power: Provides energy during power failure.
• Shock Absorption: Dampens hydraulic hammer effects.
• Leakage Compensation: Maintains system pressure during holding cycles.

2. Accumulator Types

Selecting the right type depends on the application volume, response time, and flow rate requirements.

2.1. Bladder Accumulators

Consists of a flexible rubber bladder inside a steel shell. The bladder contains the gas, and the shell contains the fluid. Benefits: Fast response time, good resistance to contamination.

2.2. Diaphragm Accumulators

Uses a flexible diaphragm to separate gas and fluid. Benefits: Compact size, lightweight, low cost, ideal for mobile equipment.

2.3. Piston Accumulators

Uses a floating piston as a separator. Benefits: High flow rates, high temperature tolerance, very large volumes possible.

3. Pre-Charging (Nitrogen)

"Correct pre-charge pressure (P₀) is critical. For energy storage, P₀ is typically set to 90% of the minimum system operating pressure (P₁)."

— BRS PROSES Engineering Team

Warning: Accumulators must only be charged with inert gas, typically dry Nitrogen. Never use Oxygen or Air, as this poses an explosion hazard!

4. BRS PROSES Accumulator Services

We provide complete accumulator solutions including supply, installation, and certification.

• Accumulator sizing and calculation
• Nitrogen pre-charging services
• Bladder replacement and repair
• Safety block and mounting kit supply
• Regular maintenance and inspection