Stainless steel sanitary water tank | Food-grade material, seamless design, easy to clean

This product is made of high-quality 304 or 316L stainless steel, with a precision mirror-polished inner surface and a matte or polished outer surface, fully meeting the sanitary water storage requirements of the food, beverage, pharmaceutical, and bioengineering industries. The water tank is equipped with a manhole, a breathable filter, a level gauge, and other sanitary accessories, ensuring no dead corners and easy emptying, preventing bacterial growth and secondary contamination. It is widely used for the storage and preparation of purified water, water for injection, beverage ingredients, dairy products, alcoholic beverages, and high-end drinking water.

core components

Tank Body: Customizable, vertical, horizontal, or square structure. Conical or elliptical bottom for easy emptying.

Inner Surface Treatment: Mechanically polished, seamless, no weld seams or unevenness.

Sanitary Manhole: Quick-opening pressure manhole (≥400mm), with safety mesh or spring-assisted opening.

Ventilation Filter: Hydrophobic breather (0.22 microns) to prevent external air contamination and maintain internal pressure balance.

Level/Temperature/Pressure Interfaces: Optional sanitary level gauge, thermometer, pressure gauge, and sterile sampling valve.

Legs: Adjustable height stainless steel legs.

Working principle and use

Clean water is delivered to the storage tank through sanitary piping, and is kept away from external microorganisms during storage using a breather. Water is discharged through the bottom outlet (anti-vortex baffle) when needed. The tank can be equipped with a drain valve for regular online cleaning and steam in-place (SIP) sterilization to ensure long-term microbiological safety.

Main advantages

Sanitary Standards: Designed and manufactured in accordance with international standards such as GMP, ASME BPE, DIN, and ISO 14644.

Long Corrosion Resistance and Lifespan: 304/316L stainless steel is resistant to acid, alkali, and chloride ion corrosion, and is not prone to rust.

No Dead Corner Design: All connections feature rounded corners, with no exposed internal threads or dead corners for liquid accumulation.

Mirror-Polished Inner Walls: Prevents biofilm adhesion, facilitates cleaning and disinfection, and ensures pure water quality.

Flexible Customization: Volume, pipe diameter, interface location, and number of openings can be customized according to the process flow.

Optional Accessories: UV sterilization lamp, remote level transmitter, etc.

Technical parameters

Material: SUS304/SUS316L

Volume: 50L – 30,000L (customizable)

Wall Thickness: 2.0 – 6mm (customizable)

Operating Temperature: -10℃ – 130℃ (SIP up to 150℃)

Design Pressure: Atmospheric pressure / -1～3 bar

Manhole Size: DN200 – DN500 quick-opening type

Connection Method: Sanitary clamp (Tri-Clamp) or welding

Application areas

Purified water and water for injection (WFI) storage systems; beverage preparation, juice, and dairy product storage tanks; biopharmaceutical culture media and buffer solutions storage tanks; high-end drinking water and mineral water finished product tanks; brewing, cosmetics, and fine chemical industries. We can provide design drawings, 3D models, and material certificates. Please specify your required volume, media, and interface configuration to obtain a detailed quotation and technical solution.