High-Pressure FRP Vessels Engineered for Advanced Water Treatment Systems

At ZJ Composites, we design and manufacture high-performance Fiberglass Reinforced Polymer (FRP) Pressure Vessels tailored for challenging water treatment and liquid filtration environments. Engineerd to replace heavy, corrosion-prone metallic tanks, our composite pressure vessels combine exceptional structural integrity with chemical inertness, ensuring reliable operation in RO desalination, media filtration, and water softening systems.

Core Product Advantages

Advanced Filament Winding Structure: Manufactured using continuous, multi-axis filament winding technology with high-purity glass fiber and epoxy/vinyl ester resin, providing superior hoop strength and uniform wall thickness.

• Superior Corrosion & Chemical Resistance: Highly resistant to aggressive chemicals, high-salinity seawater, acid-alkali wash cycles, and corrosive industrial effluents.

• High Operating Pressure Ratings: Rated to withstand continuous working pressures up to 150 PSI – 1200 PSI (custom pressure classes available), backed by a 4x safety factor burst testing design.

• Leak-Proof Seamless Liner: Molded with a seamless food-grade PE (Polyethylene) or FRP internal liner, eliminating internal welds and preventing liquid contamination or corrosion fatigue.

• Lightweight & Easy Installation: Weighs up to 60% less than equivalent stainless steel pressure vessels, reducing freight costs and simplifying on-site handling and mounting.

Technical Specifications

Primary Applications

• Reverse Osmosis (RO) Systems: High-pressure membrane housings and pre-filtration pressure tanks for seawater desalination and brackish water treatment.

• Industrial Water Softening & Filtration: Carbon filters, multi-media filters, and ion exchange softening tanks for power plant cooling, electronics manufacturing, and food & beverage production.

• Wastewater & Effluent Recycling: Chemical processing plants, electroplating, and pharmaceutical fluid handling.

Quality Assurance & Global Supply by ZJ Composites

Every FRP pressure vessel manufactured by ZJ Composites undergoes 100% factory hydrostatic pressure testing prior to shipment. Packed in export-ready moisture-proof film and reinforced protective frames, our composite vessels are ready for global container dispatch with complete technical documentation and custom fitting options.

Ready to Start Your Project?

Contact ZJ Composites today for expert technical advice, custom sizing, and competitive pricing.

Email: admin@zjcomposites.com

WhatsApp / WeChat: +86-13111538632

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