Industrial Grade Excellence
Purified Water Storage Tank Manufacturer, Supplier & Sanitary SS Vessel Fabrication
VVIOK Industry is an established, premier engineering specialist manufacturing high-purity sanitary process vessels, delivering world-class purified water storage tank solutions for pharmaceutical, biotechnology, healthcare, cosmetic, and food processing facilities across India and global markets. In sterile production environments, maintaining the microbiological and chemical purity of Purified Water (PW) and Water for Injection (WFI) demands zero-compromise engineering. Our vessels are manufactured in strict compliance with cGMP, US-FDA, and ASME BPE (Bioprocessing Equipment) standards to ensure total prevention of biofilm development, microbial proliferation, and particulate contamination.
Whether your facility requires a closed-loop post-filtration buffer or a dedicated filtered water storage tank to store reverse osmosis (RO) permeate and deionized water, our sanitary storage systems are built to sustain continuous recirculation at ambient or elevated temperatures (65°C–80°C). Fabricated from certified austenitic alloys like AISI 316L for all product contact parts, each stainless steel water tank features an internal surface finish mechanically polished and electro-polished to Ra < 0.4 µm, completely free of crevices, dead-legs, or rough weld seams that could harbor bacteria.
For applications requiring substantial reserve volumes, VVIOK Industry engineers custom industrial large water tank solutions with capacities ranging from 500 liters up to 100,000+ liters. Unlike plastic or polymer containers that risk chemical leaching, UV degradation, and bacterial adherence, choosing a heavy-duty metal water tank provides structural rigidity, heat sterilization compatibility, and decades of reliable service life. In addition to high-purity water systems, our heavy industrial fabrication works also deliver rugged ASME-compliant storage vessels, chemical tanks, and industrial fuel storage tanks for plant utility infrastructure.
Our standardized and custom configurations are engineered for seamless operational integration. For medium-scale modular skids and pilot production lines, we provide our popular 1000 gallon water tank model, designed with compact footprints and integrated clean-in-place (CIP) and steam-in-place (SIP) spray assemblies. For high-volume manufacturing facilities, our flagship 5000 Gallon Vertical SS Tank offers high-capacity storage with sanitary dished ends, conical or torispherical bottom drain transitions, load cell mounting lugs, and automated sterile vent filtration assemblies. Every vessel is hydrostatically tested, passivated, and delivered with complete EN 10204 3.1 Material Test Certificates (MTC) and validation dossiers.
Core Performance Features
High-purity purified water storage tank compliant with ASME BPE, cGMP, and US-FDA biopharma guidelines
Sanitary filtered water storage tank engineered for RO permeate, demineralized water, and WFI loops
Heavy-duty stainless steel water tank fabricated with SS 316L contact surfaces and Ra < 0.4 µm electropolish
High-capacity large water tank options ranging from 500 Liters to 100,000+ Liters (up to 25,000 Gallons)
Rigid, fire-safe, and non-leaching metal water tank construction outperforming plastic containers
Multi-disciplinary engineering plant also fabricating process vessels, chemical tanks, and utility fuel storage tanks
Compact and efficient 1000 gallon water tank configurations for batch dosing and pilot facilities
Heavy-duty 5000 Gallon Vertical SS Tank featuring dished heads, 360° CIP/SIP spray balls, and sterile 0.2 µm vent filtration
Comprehensive Engineering Specifications for Sanitary Water Storage Tanks:
1. Design Standards & Regulatory Compliance:
- Biopharmaceutical Standards: ASME BPE (Bioprocessing Equipment) current edition.
- Pressure & Vessel Codes: ASME Boiler and Pressure Vessel Code Section VIII Division 1 & IS 2825.
- Regulatory Guidelines: US-FDA 21 CFR, cGMP, WHO-GMP, and European Pharmacopoeia (EP).
2. Materials of Construction (MOC):
- Product Contact Surfaces: AISI Stainless Steel 316L (low carbon, high molybdenum for maximum pitting resistance).
- Non-Contact Surfaces & Jackets: AISI Stainless Steel 304 / 304L.
- Gaskets & Elastomers: USP Class VI compliant FDA-grade Silicone, EPDM, or PTFE.
3. Surface Finish & Passivation:
- Internal Contact Finish: Mirror Polished & Electro-polished to Ra < 0.4 µm (15 µ-in) with comprehensive profilometer certification.
- External Finish: Scotch-Brite / Satin Matt finish to Ra < 0.8 µm.
- Chemical Treatment: Complete chemical pickling and passivation as per ASTM A380 / A967 with riboflavin testing verification.
4. Vessel Geometry & Sanitary Drainage:
- Top Closure: Torispherical dished end or shallow ellipsoidal head.
- Bottom Drain: Sloped bottom, conical transition, or 2:1 ellipsoidal head with zero-dead-leg sanitary diaphragm flush bottom valve.
- Drainability: Designed for complete gravity self-drainage without pooling.
5. Thermal Control & Insulation:
- Jacketing Options: Laser-welded dimple jacket or half-pipe limpet coil for steam sanitization or chilled water cooling.
- Insulation: Chloride-free mineral wool or polyurethane foam (PUF) insulation.
- Cladding: Fully welded, hermetically sealed SS 304 weather-proof outer jacket.
6. Sanitary Fittings & Instrumentation Ports:
- Clean-In-Place (CIP): 360° rotary spray ball nozzles for complete, shadow-free coverage.
- Vent System: Sterile 0.2 µm hydrophobic PTFE air vent filter with electric heating jacket to prevent condensation blockage.
- Instrumentation: Level radar/capacitance transmitter port, RTD temperature sensor thermowell, sanitary pressure gauge, and burst disc / relief valve.
- Manway: Quick-release sanitary round manway (400 mm - 500 mm ID) with sight glass and LED illumination lamp.
