Fibreglass Pressure Tank Frp Underground Water Storage Tanks Industrial Waste Water Treatment

High-Performance Fiberglass (FRP) Pressure Tanks

The Gold Standard for Water Treatment Filtration & Softening

Lightweight. Rust-Proof. Built for High Pressure.

For water treatment professionals, equipment failure is costly. Qingdao Chengda Huili New Materials Co., Ltd. delivers industrial-grade Fibreglass (FRP) Pressure Tanks designed to outperform and outlast traditional steel vessels.

Constructed with a seamless, food-grade inner liner and reinforced with high-strength fiberglass filament winding, our tanks provide the ultimate solution for residential, commercial, and industrial water filtration systems.


? Why Choose FRP Over Steel?

In water treatment, corrosion is the enemy. Our composite tanks offer a superior alternative to steel vessels, providing:

  • 100% Corrosion Resistance: No rust, no leaching, and no need for expensive epoxy linings. Perfect for corrosive environments and brackish water.

  • Seamless Inner Liner: We use high-performance PE (Polyethylene) or ABS liners that are seamless and smooth, preventing bacteria growth and ensuring water purity.

  • High Strength-to-Weight Ratio: Weighing 60% less than steel, our tanks are easy to handle and install, yet strong enough to withstand operating pressures up to 150 PSI (10 Bar).

  • Low Maintenance: Install it and forget it. No painting or lining repairs required.

[Image showing a cross-section: Inner Liner + Outer Fiberglass Winding]


⚙️ Technical Specifications

Our tanks are compatible with all major control valves (e.g., Fleck, Clack, Runxin) and media types.

FeatureSpecification Details
ConstructionInner PE/FRP Liner + Outer Fiberglass Filament Winding
Operating PressureStandard 150 PSI (10.5 Bar)
Burst Pressure600 PSI (42 Bar) - 4:1 Safety Factor
Operating Temp1°C to 49°C (34°F to 120°F)
Tank Diameter6" to 72" (Residential to Industrial sizes)
Top/Bottom Opening2.5" NPSM, 4" UN, or Flanged (6" Flange)
Color OptionsNatural, Blue, Grey, Black (Customizable)
Testing100,000+ Cycle Fatigue Test

Note: We offer both Top Opening and Top & Bottom Opening configurations for larger industrial tanks to facilitate media discharge.


?️ Applications

Qingdao Chengda Huili pressure vessels are the core component for diverse water treatment systems:

  1. Water Softeners: Removing hardness (calcium/magnesium) in homes and boilers.

  2. Multi-Media Filters: Sand filters and carbon filters for removing sediment and chlorine.

  3. RO Pre-treatment: Protecting Reverse Osmosis membranes from fouling.

  4. Iron Removal: Removing dissolved iron and manganese.

  5. Industrial Process Water: Food & Beverage, Pharmaceutical, and Chemical processing.


? The Qingdao Chengda Huili Guarantee

We understand that a leaking tank ruins your reputation. That’s why we obsess over quality:

  • Precision Winding: Our automated epoxy resin winding process ensures uniform thickness and strength distribution.

  • Strict QA: Every tank undergoes a hydrostatic pressure test before shipment.

  • Customization: We can provide OEM branding and color matching for bulk orders.


? Upgrade Your Water System Today

Reliable filtration starts with a reliable vessel. Partner with Qingdao Chengda Huili New Materials Co., Ltd. for competitive pricing and global shipping.

[Button: Download Specification Sheet & Size Chart]

Looking for a specific tank size or opening?

Contact our sales team directly:

? info@composites-factory.com


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