Aseptic Storage Tank

An aseptic tank maintains complete sterility thanks to a sterile air filtration system (0.2μm), aseptic valves, and controlled positive pressure, preventing any microbial contamination. Unlike conventional tanks that store products that have already been pasteurized but are susceptible to recontamination, the aseptic tank preserves the sterile integrity of the product from filling to emptying, guaranteeing consistent microbiological quality.

Our system utilizes a sterile air/gas preparation unit with certified 0.2μm membrane filters, maintained in integrity by a constant differential pressure. The positive pressure inside the tank (0.5–1.5 bar) prevents any entry of non-sterile air. Double-seated aseptic valves and continuous monitoring of critical parameters (pressure, temperature, filter integrity) ensure an uninterrupted aseptic chain 24/7.

Our aseptic tanks cover a range from 1,000 to 40,000 liters. The optimal size depends on the production throughput, the desired storage duration, and the required operational flexibility. For a continuous production line, we recommend a volume equivalent to 4-8 hours of production. Modular tanks allow for gradual capacity expansion as needs evolve, with significant economies of scale beyond 10,000 liters.

For products containing particles or with high viscosity, we integrate specially designed aseptic agitators with sterile barriers. These agitators maintain product homogeneity throughout storage, even for extended periods. The blade geometry is adapted to the product type (anchor for viscous products, propeller for products with fragile particles), and variable speeds allow for adjusting the agitation to prevent sedimentation without damaging the particles.

Our tanks incorporate automated CIP (Cleaning-in-Place) and SIP (Sterilize-in-Place) systems. The standard protocol includes: pre-rinse, alkaline cleaning (1-2% at 75-80°C), rinse, acid cleaning (0.8-1% at 65-70°C), final rinse, and steam sterilization (121°C for 30 minutes) or hot water sterilization (95°C for 60 minutes). All parameters (temperature, concentration, flow rate, time) are automatically recorded for HACCP traceability.

This exceptional performance is achieved through several innovations: an optimized conical bottom (slope >15°), a fully opening aseptic drain valve, an integrated rinsing system that recovers residual products, and a hydraulic design that minimizes dead zones. Combined with our precise level and drain control system, we guarantee near-complete product recovery, significantly reducing costs and environmental impact.