HYDAC SB330 Accumulator | 4L 13L 20L 24L 50L | 330 Bar | 112A9 Rubber Bladder

SB330 Series High-Pressure Bladder Accumulators (4L – 50L)

Product Overview:

The SB330 series represents the gold standard for energy storage, shock absorption, and emergency protection in the heavy-duty hydraulic systems of 2026. This product range covers capacities from the compact $4\text{L}$ up to the heavy-duty $50\text{L}$ models, rated for an impressive $330 \text{ bar}$. Equipped with the 112A9 high-performance compound bladder, these units deliver maximum reliability under extreme pressures and complex temperature ranges.

Core Model Specifications:

• SB330-32A1/112A9-330A:

  • Volume: $32\text{L}$ standard capacity.

  • Material: 112A9 (Reinforced NBR), featuring ultra-low gas permeability.

• Full Volume Spectrum: * $4\text{L} / 13\text{L}$: Ideal for small power units and compact machine tools.

  • $20\text{L} / 24\text{L} / 50\text{L}$: Engineered for metallurgy, wind power, and large-scale hydraulic stations.

Key Technical Advantages:

• $330 \text{ bar}$ Peak Pressure Integrity: Shells are forged from premium seamless steel tubing and comply with 2026 international pressure vessel fatigue standards, ensuring structural security under continuous high-pressure cycles.

• 112A9 Reinforced Bladder: Formulated with specialized synthetic rubber, the 112A9 compound maintains a stable elasticity coefficient under high temperatures or frequency impacts, significantly extending nitrogen replenishment intervals.

• Instantaneous Dynamic Response: The low-inertia bladder structure responds immediately to system fluctuations, effectively dampening high-frequency pump ripples ($>10\text{Hz}$) and protecting sensitive downstream proportional valves.

• Standardized A1 Interface: Unified fluid port design ensures $100\%$ physical interchangeability with modern 2026 industrial hydraulic stations, simplifying on-site maintenance.

• Industrial Durability: High-quality anti-corrosion exterior coating protects the shell in harsh environments featuring moisture, dust, or mild chemical spray.

Detailed Technical Specifications:

• Nominal Volumes: $4, 13, 20, 24, 32, 50 \text{ Liters}$.

• Max Working Pressure ($P_{max}$): $330 \text{ bar}$ ($33 \text{ MPa}$).

• Bladder Compound Code: 112A9 (Premium Synthetic Rubber).

• Connection Style: Standard A1 Threaded Port.