HYDAC SB330 Repair Kit | SB330-4A1/6A1/32A1 | 7/8-14UNF Gas Port | 332272 Bladder

SB330 Series Accumulator Bladder Repair Parts (7/8-14UNF)

Product Overview:

This page offers professional-grade repair components for the SB330 series accumulators utilized in the mainstream industrial hydraulic systems of 2026. Covering a wide capacity range from $2.5\text{L}, 4\text{L}, 6\text{L}$ to $32\text{L}$, these kits strictly adhere to the 7/8-14UNF Gas Port standard. Each kit includes high-performance NBR rubber bladders, gas valve assemblies, and essential seals, ensuring your high-pressure systems operate with maximum uptime.

Core Model & Part Number Details:

• Core Part No.: 332272 (Specifically for 2.5L configurations).

• Compatible Host Models:

  • SB330-2.5A1/112A6-330A: Features the 112A6 low-temperature/high-performance NBR bladder for superior gas retention.

  • SB330-4A1 / 6A1 / 32A1 / 12A9-330A: Universal maintenance parts covering various volume requirements.

• Gas Port Specification: 7/8-14UNF (Imperial fine thread), compatible with standard nitrogen charging tools.

Key Technical Advantages:

• Premium NBR Rubber Formulation: Manufactured with high-nitrile rubber for exceptional wear resistance and ultra-low gas permeability. It maintains stable nitrogen pre-charge pressure even under extreme $330 \text{ bar}$ loads.

• 7/8-14UNF Standardized Gas Valve: Precision-machined interface ensures a $100\%$ leak-free connection with modern 2026 charging kits (e.g., FPU-1), simplifying on-site service.

• Comprehensive Repair Kit Configuration: Each Repair Parts assembly includes the bladder, anti-extrusion valve seals, dust caps, and valve cores, enabling a full overhaul in a single maintenance cycle.

• Wide Temperature Resilience: Specialized materials like 112A6 retain physical elasticity between $-15^\circ\text{C}$ and $+80^\circ\text{C}$, performing reliably in extreme conditions.

• Agile Pulsation Dampening: The high-quality bladder responds instantly to hydraulic shocks, protecting pumps and downstream proportional valves while significantly reducing circuit noise.

Detailed Technical Specifications:

• Pressure Rating: Up to $330 \text{ bar}$ ($33 \text{ MPa}$).

• Compatible Volumes: $2.5, 4, 6, 12, 32 \text{ Liters}$.

• Gas Port Thread: 7/8-14UNF (Standard).

• Bladder Compound Codes: 112A6 / 112U / 12A9.