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Home > Industrial Equipment & Components > Environment Protection Device > Sewage Treatment Equipment > Double-Layer FRP Horizontal Storage Tank – Large Capacity Underground Design for Continuous Supply

Double-Layer FRP Horizontal Storage Tank – Large Capacity Underground Design for Continuous Supply

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Product Spotlights

Double-layer FRP construction ensures leak-proof safety and environmental protection. Large horizontal underground design saves space and provides continuous liquid supply. Superior corrosion resistance, lightweight yet strong, with customizable capacity and accessories. Backed by 15+ years of manufacturing experience and global export to 15+ markets.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Fiberglass Reinforced Plastic (FRP)

Structure:

Double-layer with inner and outer wall

Orientation:

Horizontal

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Hengshui City Yike Composite Materials Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Material Fiberglass Reinforced Plastic (FRP)

Structure Double-layer with inner and outer wall

Orientation Horizontal

Capacity Customizable, up to 500,000 liters

Application Underground storage of chemicals, water, oil, and other liquids

Color Various colors available (customizable)

Design Standard Compliant with industry standards (details available upon request)

Corrosion Resistance Excellent resistance to acids, alkalis, and salts

Leak Detection Built-in interstitial space for monitoring

Hengshui City Yike Composite Materials Co., Ltd. has been a trusted manufacturer of composite storage solutions since 2009, exporting to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our Double-Layer FRP Horizontal Storage Tank is engineered for large-capacity underground installations that ensure continuous supply of liquids—whether for chemical processing, water treatment, or petroleum storage. With a robust double-wall design and advanced corrosion resistance, this tank offers unmatched reliability and safety for demanding industrial environments.

Key Features & Technical Specifications

Double-Layer Construction: The inner and outer walls are made of high-strength FRP, creating a leak-proof barrier that prevents environmental contamination. The interstitial space can be equipped with a vacuum or pressure monitoring system for early leak detection.
Horizontal Underground Design: Optimized for burial below grade, this tank saves valuable above-ground space and provides stable temperature control for stored liquids. The horizontal orientation facilitates easy installation and maintenance access.
Large Capacity Options: Capacities range from 10,000 liters to over 500,000 liters, customizable to meet your specific volume requirements. Multiple tanks can be connected for even larger systems.
Continuous Supply Capability: The tank is designed with a dedicated outlet manifold that allows for uninterrupted flow even during refilling or maintenance. Integrated baffles minimize turbulence and ensure consistent liquid level.
Superior Corrosion Resistance: FRP materials resist attack from acids, alkalis, salts, and organic solvents, making this tank suitable for long-term storage of aggressive chemicals. The gel coat exterior provides additional UV protection for above-ground portions.
Lightweight yet Strong: Compared to steel or concrete tanks, FRP is significantly lighter, reducing transportation and installation costs. The strength-to-weight ratio is excellent, with a tensile strength of up to 300 MPa.
Customizable Inlets & Outlets: Nozzles, manways, vents, and flanges can be positioned according to your piping layout. Sizes and pressure ratings are available upon request.
Long Service Life: With proper installation, these tanks can last 20–30 years or more, requiring minimal maintenance. The non-conductive, non-corrosive nature eliminates the need for cathodic protection.

Technical Parameters (Typical)

Parameter	Value Range
Capacity	10,000 – 500,000 L (customizable)
Diameter	1.5 – 4.5 m
Length	3 – 18 m
Wall Thickness (Inner + Outer)	6 – 20 mm (total)
Design Pressure	Atmospheric to 0.5 MPa (custom)
Operating Temperature	-40°C to +80°C (higher with special resin)
Standard Compliance	ASTM D3299, BS EN 13121 (details on request)
Color Options	Standard green, blue, gray; custom RAL colors

Customer Benefits

Enhanced Safety: The double-wall design eliminates the risk of leaks that could harm the environment or violate regulations. The interstitial monitoring system provides real-time alerts.
Space Efficiency: Underground installation frees up valuable surface area for other operations. The horizontal shape allows for shallower burial depth compared to vertical tanks.
Reduced Operational Costs: No need for expensive corrosion-resistant coatings or cathodic protection. Low thermal conductivity reduces energy costs for temperature-sensitive liquids.
Continuous Supply Assurance: The tank design minimizes downtime during refilling, ensuring your production or distribution lines keep running. Optional pumps and level controls integrate seamlessly.
Easy Customization: We work closely with you to design the tank that fits your exact site conditions and liquid properties. From nozzles to baffles, everything is tailored.
Proven Longevity: With over 15 years of manufacturing experience and thousands of tanks installed worldwide, our FRP tanks have a track record of reliable performance.

Why Choose Hengshui Yike?

Since 2009, Hengshui City Yike Composite Materials Co., Ltd. has grown into a leading exporter of composite storage tanks, with an annual export value of US$1.5–2.5 million. Our products are shipped through major Chinese ports including Tianjin and Shanghai, serving customers in over 15 countries and regions. We offer comprehensive technical support, from initial design to on-site installation guidance. Every tank undergoes rigorous quality control testing, including hydrostatic pressure tests and vacuum tests for the double-wall integrity. Our commitment to excellence ensures that your investment delivers long-term, trouble-free service.

Contact us today to discuss your specific storage needs. Our engineering team is ready to provide a customized solution that meets your capacity, site, and budget requirements. Choose Yike for reliable, double-layer FRP tanks that keep your operations flowing continuously.

Frequently Asked Questions

Q: What is the typical lifespan of a double-layer FRP underground tank?

A: With proper installation and maintenance, our FRP tanks can last 20–30 years or more. The non-corrosive material and double-wall design significantly extend service life compared to steel tanks.

Q: Can the tank be used for potable water storage?

A: Yes, we can use FDA-approved food-grade resin and gel coat for potable water applications. The smooth interior surface prevents bacterial growth and is easy to clean.

Q: How is the double-wall leak detection system implemented?

A: The interstitial space between the inner and outer walls can be continuously monitored via a vacuum/pressure gauge or a liquid sensor. An alarm will alert you in case of a leak.

Q: What are the installation requirements for an underground tank?

A: The tank should be placed on a compacted sand or gravel bed, surrounded by a suitable backfill material (e.g., pea gravel). We provide detailed installation manuals and can offer on-site supervision if needed.

Q: Can you customize the nozzle positions and sizes?

A: Absolutely. We can place any number of inlets, outlets, vents, and manways at your specified locations. Flanges can be ANSI, DIN, JIS, or custom standards.

Q: What is the maximum capacity you can produce?

A: Our standard maximum is 500,000 liters for a single tank. For larger volumes, we can design a multi-tank system or a custom solution. Contact us for specific requirements.

Q: Do you provide certificates of compliance or material test reports?

A: Yes, we can provide material test reports, hydrostatic test certificates, and other documentation upon request. Specific certifications are available depending on your market.