The quickest way to identify the best solution for your needs is to speak with one of our team of experts.
We'll be able to quickly narrow down your options and give you objective advice on the best fit.
Glass Fused to Steel Tanks
Glass Fused to Steel Tanks
GLASS FUSED to STEEL TANK, a type of custom GFS tank, is assembled on-site from special enamel steel plates, stirrups, self-locking bolts, sealants and other accessories. The raw material of the steel plate is a special titanium-containing enamel hot-rolled plate developed in cooperation with domestic first-tier steel companies, which is formed using fast and low-cost on-site assembly technology.
After the enameled steel plate is fired at a high temperature of 820°-930°, the enamel will fuse with the surface of the steel plate to form a strong and chemically inert inorganic coating with excellent corrosion resistance.
The enamel process is currently the most advanced coating anti-corrosion technology in the steel storage tank market.
The glass-fused coating acts as a protective barrier, blocking acids, alkalis, salts, and organic contaminants from damaging the steel core. This ensures safe storage of drinking water (potable), fire water, and even chemically treated wastewater—without leaching harmful substances.
GFS tanks meet strict hygiene standards (e.g., FDA, NSF/ANSI 61 for potable water contact), with a smooth, non-porous surface that inhibits bacterial growth. Ideal for municipal water utilities, schools, hospitals, and food processing facilities.
Available in capacities from 5000L to 1000000L+, GFS tanks can be tailored to your space constraints (indoor/outdoor), installation site (flat ground, sloped terrain), and specific needs (insulation for temperature control, agitators for sludge mixing).
With proper care, GFS tanks last 25–30 years—far longer than fiberglass (10–15 years) or plastic (5–10 years). Minimal maintenance (occasional cleaning, inspections) keeps them operational for decades.
While upfront costs may exceed cheaper materials, GFS tanks save money over time through reduced repairs, lower replacement frequency, and energy efficiency (e.g., insulated models reduce heating/cooling needs).
GFS Water Storage Tanks (Glass Fused to Steel) combine the structural strength of carbon steel with a vitreous enamel glass coating, creating a robust, corrosion-resistant solution for storing potable water, fire reserves, irrigation supplies, and industrial process water. Unlike traditional materials like fiberglass or plastic, GFS tanks resist chemical degradation, rust, and pitting—even in harsh environments—making them ideal for municipal, agricultural, commercial, and industrial applications.
Municipal & Public Water: Storing potable water for cities, towns, and villages; fire water reservoirs for emergency response.
Agriculture: Irrigation water holding, livestock hydration, and fertilizer blending.
Industrial: Process water storage (cooling, cleaning, chemical dilution), wastewater pretreatment, and reverse osmosis (RO) systems.
Commercial: Hotels, resorts, and campuses needing reliable backup water for restrooms, landscaping, and fire safety.
Renewables: Storing rainwater for solar/wind-powered irrigation or hydrogen production facilities.
| Feature | Benefit |
|---|---|
| Glass-Fused Coating | Acid/alkali-resistant; prevents leaching into stored water. |
| Steel Core Structure | Withstands high pressure (up to 0.6 MPa) and impacts; ideal for large volumes. |
| Custom Designs | Tailored to your capacity, shape (cylindrical, rectangular), and site needs. |
| Easy Installation | Factory-fabricated modules reduce on-site labor and project timelines. |
| Compliance Certifications | Meets ISO 9001, NSF/ANSI 61 (potable), AWWA D103 (fire), and local standards. |
When selecting a GFS tank, consider these critical factors:
Storage Purpose: Potable water requires NSF/ANSI 61 certification; fire water needs AWWA D103 compliance.
Capacity: Match the tank size to your peak demand (e.g., a 500000L tank for a small town’s fire reserve).
Installation Site: Flat ground? Sloped terrain? Our team designs custom foundations for stable installation.
Environmental Conditions: Exposure to saltwater, chemicals, or extreme temperatures? We recommend specialized coatings (e.g., salt-resistant enamel).
Budget & Longevity: Prioritize GFS for lower lifetime costs—even if upfront costs are higher than alternatives.
Q: Are GFS water tanks safe for drinking water?
A: Yes—our GFS tanks meet NSF/ANSI 61 standards for potable water contact, ensuring no harmful chemicals leach into the water.
Q: How long does it take to install a GFS water tank?
A: For standard designs, installation takes 3–5 days. Custom or large tanks may take 1–2 weeks, depending on site preparation.
Q: Can GFS tanks handle freezing temperatures?
A: Yes—with insulated jackets (available as an option), GFS tanks withstand temperatures as low as -20°C (-4°F) without cracking.
Q: Do you offer maintenance services for GFS water tanks?
A: Yes—we provide routine inspections, cleaning, and coating touch-ups to extend your tank’s lifespan.
At Wansheng, we've engineered GFS Water Storage Tanks for 20+ years, serving 50+ countries with reliable, compliant solutions. Whether you need a small fire water tank for a commercial building or a massive irrigation reservoir for agriculture, our team delivers turnkey projects—from design to installation—backed by industry-leading warranties.
To discuss your water storage needs and get a tailored GFS tank that protects your water for decades.
View More
GFS Tanks Solutions In Action
GFS Tank - Safe and Durable Drinking Water Storage Solution
GFS bolted tanks have been widely used in various industries for storage solutions. These tanks are assembled on site with enameled steel plates, bolts, sealants, etc. Bolted tanks can be customized to specific requirements and range in size from small tanks for residential water storage to large industrial tanks for chemical storage, process water storage or water treatment.
GFS Fire Water Storage Tank - Modular Fire System Solution
The GFS fire water storage system launched by Hebei Wansheng Environmental Engineering Co., Ltd. adopts high-strength enameled steel plate (Glass-Fused-Steel) technology and is designed for fire emergency water supply needs.
GFS tank wastewater treatment system solution
In the field of wastewater treatment, traditional tanks often face problems such as corrosion perforation, short life, and high maintenance costs. Hebei Wansheng Environmental Protection Engineering Co., Ltd., with 20 years of experience in the research and development of environmental protection equipment, launched the GFS (glass fused to steel) tank system
GFS tank - innovative solution for anaerobic reactors
Hebei Wansheng Environmental Protection Engineering Co., Ltd. redefines the standard of anaerobic reactors with GFS (glass fused steel) tank technology, solves the pain points of traditional anaerobic processes (such as UASB and IC reactors), and provides more efficient, durable and intelligent solutions for high-concentration organic wastewater treatment.
Want to speak to us?
The quickest way to identify the best solution for your needs is to speak with one of our team of experts.
We'll be able to quickly narrow down your options and give you objective advice on the best fit.
