FRP Vessel 3672 – 4″ Opening 10 Bar Composite Pressure Tank

The FRP vessel 3672 is a fiberglass-reinforced pressure tank designed for demanding water treatment applications in commercial and industrial systems. Because it uses composite construction, this vessel offers excellent corrosion resistance and outstanding durability, which is essential for long-term service in filtration, softening, or reverse osmosis pre-treatment setups.

This pressure tank features a 4″ opening for easy media loading and inspection, and it is rated for a maximum operating pressure of 10 bar (150 psi), enabling reliable use with a wide range of systems.

Key Features & Benefits

• Robust FRP Construction: Made from fiberglass-reinforced plastic that resists rust and corrosion even in harsh conditions, leading to long service life.
• Large 4″ Opening: Allows for easier loading of media, such as sand, carbon, or resin, and simplifies maintenance when needed.
• High Pressure Rating: Rated to handle up to 10 bar (150 psi), so you can use it in demanding commercial and industrial water systems.
• Versatile Applications: Suitable for media filtration, water softening resin tanks, and RO pre-treatment vessels in mid-to-large water systems.
• Corrosion-Resistant: The composite tank body and seamless liner prevent chemical damage and leakage over time.
• Low Maintenance: Its durable build requires less upkeep compared to metal tanks in similar service.

Technical Specifications

How It Works

The FRP vessel 3672 acts as a pressure-rated tank in water treatment processes. First, you fill it with a selected media — such as sand for sediment removal, activated carbon for chlorine and taste/odor removal, or ion-exchange resin for softening. Then, water flows through the media bed under pressure, enabling the desired treatment process.

Because this tank is built to withstand high pressures and resist corrosion, it performs reliably even when handling treated water or harsh feedwater conditions. Moreover, the 4″ opening makes it easier to add or replace media without tools or complicated disassembly.

Typical Applications

• Commercial Water Filtration Systems: Removes sediment and contaminants before point-of-use or distribution.
• Water Softening: Holds resin media for ion exchange to reduce hardness.
• Reverse Osmosis Pre-Treatment: Serves as a vessel for carbon or multimedia filters to protect RO membranes.
• Industrial Water Treatment: Ideal where strong and corrosion-resistant vessels are needed.

Installation & Maintenance Tips

1. Position on a Stable Base: Ensure the vessel stands level and in a secure place before adding media.
2. Ensure Proper Plumb­ing Connections: Use rated fittings and check for leaks after pressurising the system.
3. Perform Media Checks: When replacing media, inspect the inside of the tank through the 4″ opening to confirm liner integrity.
4. Follow Pressure Limits: Never exceed the rated 10 bar maximum to prolong the vessel’s lifespan.

Because it’s a sturdy FRP unit, this tank will typically require less maintenance than metal alternatives, and it helps minimize downtime in demanding systems.

Conclusion

The FRP vessel 3672 is a high-quality, high-pressure composite tank that provides excellent performance and durability for commercial and industrial water treatment applications. With its corrosion-resistant build, large openings, and strong pressure rating, it supports a range of tasks from filtration to softening and RO pre-treatment. When you need a tank that combines strength, long life, and ease of use, this reinforced FRP vessel is a reliable choice for your water system.