HYDAC SB330-50 Accumulator | SB330-50A1/112U | 142U | 342A6 | 50L 330Bar Bladder

SB330-50A1 Series Heavy-Duty Bladder Accumulators

Product Overview:

The SB330-50A1 series is the premier solution for pressure compensation and energy storage in 2026 large-scale industrial hydraulic systems, forging equipment, and power stations. As a $50\text{L}$ high-capacity series, it operates reliably under extreme pressures up to $330 \text{ bar}$. This page highlights specialized bladder compounds designed to meet the demands of standard mineral oils, mildly corrosive fluids, and extreme temperature fluctuations.

Core Model Specifications:

• SB330-50A1/112U-330A:

  • Configuration: 50L Carbon Steel Shell with 112U Bladder (Standard NBR).

  • Application: The most versatile industrial model for standard mineral oil hydraulic systems.

• SB330-50A1/142U-330A:

  • Configuration: 50L Shell with 142U Bladder (Optimized NBR for specific fluids).

  • Application: Enhanced chemical compatibility for demanding industrial hydraulic media.

• SB330-50A1/342A6-330A:

  • Configuration: 50L Shell with 342A6 Bladder (Low-temperature or High-performance Synthetic Rubber).

  • Application: Specifically engineered for the outdoor cold environments or high-frequency cycles of 2026, offering superior gas tightness.

Key Technical Advantages:

• $330 \text{ bar}$ Safety Certification: Shells are forged from premium seamless steel, complying with international pressure vessel regulations. Exceptional performance in 2026 fatigue tests ensures operational safety.

• Precise Energy Reserves: The 50L volume provides robust auxiliary power, maintaining system pressure during pump unloading and significantly reducing energy losses.

• Anti-Extrusion Technology: Equipped with a metallic anti-extrusion valve at the bladder base to prevent damage during rapid gas expansion, extending service life.

• Multi-Compound Compatibility: 112U, 142U, and 342A6 cover working temperatures from $-15^\circ\text{C}$ to $+80^\circ\text{C}$, with excellent resistance to fire-resistant fluids.

• Rapid Maintenance Design: The standard A1 interface and top-opening structure allow for on-site bladder replacement with minimal tools, drastically shortening downtime.

Detailed Technical Specifications:

• Nominal Volume: $50 \text{ Liters}$.

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

• Bladder Compound Codes: 112U / 142U / 342A6.

• Shell Material: Carbon Steel (High-strength anti-corrosive coating).

• Fluid Connection: G 2″ (Standard A1).