The Double-Layer Storage Tank is a high-performance vessel designed for temperature-controlled storage of liquid materials in the dairy, beverage, brewery, food processing, and pharmaceutical industries.
It consists of an inner tank, an outer shell, and a thermal insulation layer in between. The insulation layer—made of polyurethane foam or rock wool—ensures effective temperature preservation, cooling, or heating, maintaining product stability and quality during storage or processing.
The tank body is made of high-quality stainless steel (SUS304 / SUS316L), with a sanitary internal finish and weld-free dead angles to ensure full compliance with GMP and food safety standards. It can be designed for both vertical and horizontal installation, suitable for various production layouts.
Main Features
● Temperature Control Design
Equipped with a jacket or coil for circulating cooling or heating media such as glycol water, hot water, or steam. Ensures precise temperature maintenance for sensitive products.
● Excellent Thermal Insulation
The middle layer is filled with high-density polyurethane foam or rock wool, minimizing heat exchange with the external environment and ensuring energy efficiency.
● High Sanitary Standard
The inner surface is polished to Ra ≤ 0.4 μm, preventing residue buildup and bacterial growth. Compatible with CIP and SIP systems for in-place automatic cleaning.
● Durable Construction
Manufactured using food-grade stainless steel, with reinforced structure, corrosion resistance, and long service life.
● Customizable Design
Tank capacity, insulation material, jacket type (dimple, half-pipe, or full), and accessories can be customized according to production needs.
Technical Parameters (Customizable)
| Item | Specification |
| Capacity | 100 L – 50,000 L |
| Material | SUS304 / SUS316L |
| Structure | Inner tank + Insulation + Outer shell |
| Insulation Material | Polyurethane foam / Rock wool |
| Jacket Type | Dimple jacket / Coil jacket / Full jacket |
| Surface Finish | Internal Ra ≤ 0.4 μm, External Matt or Mirror Polished |
| Working Pressure | Atmospheric / Slight pressure |
| Temperature Range | -20°C – 120°C |
| Accessories | Manhole, Level gauge, Thermowell, Pressure gauge, CIP spray ball, Vent valve, Outlet valve |
| Connection Type | Sanitary quick coupling / Tri-clamp |
| Design Standard | GB / ASME / DIN |
Structure
● Inner tank + outer shell + insulation layer
● Optional top/side manholes
● Flat, conical, or dished bottom options
● Insulation thickness: 30–80 mm (customizable)
Insulation Material
● Polyurethane (PU foam)
● Rock wool
● Pearl cotton
● Optional high-temperature insulation materials
Working Conditions
● Temperature range: -10°C to +120°C
● Pressure: atmospheric storage
● Designed for stable product holding
Surface Finish
● Internal: Ra ≤ 0.4–0.6 μm (mirror polish optional)
● External: matte, mirror, or brushed finish
Connections
● Tri-Clamp or sanitary quick-connect fittings
● Optional flange connections
● Bottom outlet valve: butterfly / diaphragm / ball valve
Material & Hygiene Standards
Materials
● Inner tank: SUS316L or SUS304
● Outer tank: SUS304
● Insulation jacket: PU / rock wool / custom
● Gaskets: EPDM / silicone / PTFE
● Support legs: stainless steel with adjustable feet
Welding & Construction
● Full TIG argon welding
● Inner welds polished smooth with no dead corners
● Hygienic design for CIP or manual cleaning
Compliance
● Meets FDA, 3A, GMP hygiene requirements
● Fabricated per ASME / DIN / GB standards
Advantages
● Maintains product temperature effectively (cooling or heating)
● Reduces energy consumption with superior insulation
● Hygienic design suitable for food and pharmaceutical industries
● Compatible with automatic CIP cleaning system
● Customizable to meet different process requirements
Applications
● Milk & dairy storage
● Beverage & juice intermediate holding
● Fermentation material storage
● Cosmetics & pharmaceutical liquids
● Chemical ingredients
● Water & syrup storage
● Temperature-sensitive liquids
Optional Configurations
● CIP spray ball
● Level indicators (glass tube / magnetic / electronic)
● Pressure/temperature gauges
● Sampling valve
● Safety vent valve
● Agitator installation port
● Ladder & platform
● Skid-mounted base frame
● Insulation upgrade for hot or chilled products
Send us your request for quotation and we will generate a quote with everything you need for your brewing equipment.
