HYDAC SB330 Accumulator | 24L 32L 50L | 330 Bar High Pressure | 112U Bladder

SB330 Series High-Pressure Bladder Accumulators (24L / 32L / 50L)

Product Overview:

The SB330 series is the industry benchmark for pressure pulsation dampening, energy storage, and fail-safe protection in the advanced heavy-duty hydraulic systems of 2026. Rated for a maximum working pressure of $330 \text{ bar}$, these high-performance bladder-type accumulators deliver exceptional response sensitivity. This range includes the $24\text{L}, 32\text{L},$ and $50\text{L}$ core capacities, all equipped with the highly versatile 112U compound bladder—the premier choice for metallurgical machinery, heavy presses, and automated power stations.

Core Model Specifications:

• SB330-24A1/112U-330A: $24\text{L}$ capacity, optimized for medium hydraulic circuits requiring precise flow compensation.

• SB330-32A1/112U-330A: $32\text{L}$ capacity, balancing installation footprint with energy efficiency—a staple for industrial power units.

• SB330-50A1/112U-330A: $50\text{L}$ high-capacity model, providing robust emergency power reserves and large-amplitude pulsation dampening for heavy-duty equipment.

Key Technical Advantages:

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

• 112U High-Performance NBR Bladder: Features a standard Nitrile (NBR) formulation for superior wear resistance, excellent gas tightness, and ultra-low gas permeability, effectively extending nitrogen pre-charge retention intervals.

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

• Modular A1 Interface: Standardized A1 threaded fluid ports ensure $100\%$ physical interchangeability with mainstream global hydraulic accessories and piping systems.

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

Detailed Technical Specifications:

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

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

• Bladder Compound Code: 112U (Standard Nitrile Rubber).

• Compatible Mediums: Mineral oils, synthetic fluids, and non-corrosive industrial liquids.

• Connection Style: Standard A1 Threaded Port.