Description

1865 FRP Vessel is a fiberglass-reinforced plastic pressure tank manufactured under the Tata Steel brand, engineered for use in residential, commercial, and industrial water treatment applications. These vessels serve as durable housings for filter media such as sand, activated carbon, or ion-exchange resin used in softening, filtration, and pre-treatment systems.

Key Specifications

• Brand: Tata Steel

• Model: 1865 with Top & Bottom Openings (4″ threaded ports)

• Material: High-grade FRP body with a polyethylene (PE) liner

• Diameter: ~18 inches (~457 mm)

• Height: ~65 inches (~1650 mm)

• Capacity: ~230–250 litres (depending on media and configuration)

• Maximum Operating Pressure: ~10 bar / 150 psi

• Maximum Operating Temperature: ~65 °C (varies by supplier)

• Maximum Vacuum: ~127 mmHg (~5″ Hg)

• Safety Factor: Typically ~4:1 (high burst strength)

• Openings: 4″ threaded at top and bottom for fittings and easy media handling

• Warranty: ~1 year against manufacturing defects

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Design & Construction

The 1865 vessel is made using filament winding — a process that wraps continuous fiberglass strands around a liner to create a strong composite structure. This design results in:
✔ High corrosion resistance — unlike metal tanks, FRP won’t rust when exposed to water or chemicals.
✔ Lightweight yet strong — easier to install and handle on site.
✔ Leak-proof internal liner — seamless PE liner prevents leaks and contamination.
✔ Dual openings (top & bottom) — simplifies valve installation, media loading/removal, and maintenance.

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Typical Applications

The 1865 Tata Steel FRP Vessel is widely used across water treatment systems, such as:
✔ Sand filtration — for removing suspended solids and turbidity.
✔ Activated carbon filtration — for removing taste, odor, chlorine, and organics. 
✔ Water softening systems — housing ion-exchange resins.
✔ RO (Reverse Osmosis) pre-treatment — protecting downstream membranes.
✔ Commercial/industrial treatment — including boiler feed water, municipal filtration, and more.

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Advantages

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Installation & Maintenance Tips

🔹 Install on a stable platform with proper support to avoid stress on connections.
🔹 Use compatible valves and fittings — typically 4″ multiport valves for filtration systems.
🔹 Do not exceed pressure/temperature limits specified by the manufacturer.
🔹 Periodically inspect internal media and connections to prevent clogging and ensure efficiency.

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In Summary

The 1865 Tata Steel FRP Vessel is a mid-to-large size, corrosion-resistant pressure tank ideal for a wide range of water filtration and softening systems. With a capacity around ~250 L and dual top/bottom openings, it offers flexibility during installation and maintenance while standing up to typical operating pressures in water treatment plants.