
The FRP Tank 1665 Top Pentair is a durable, high-performance fiberglass-reinforced plastic (FRP) pressure vessel designed for industrial and water treatment applications. Engineered for reliability and corrosion resistance, it withstands high pressure while maintaining structural integrity. The top-mounted design allows easy access for maintenance, inspection, and component installation. Ideal for filtration, softening, or chemical processing systems, it ensures consistent flow and long-term efficiency. Lightweight yet robust, the tank combines Pentair’s engineering expertise with FRP’s strength, providing a cost-effective solution for residential, commercial, and industrial water systems. It is compatible with a range of media and operational conditions.
The Pentair 1665 FRP (Fiberglass Reinforced Plastic) tank is a robust and versatile pressure vessel designed for residential and commercial water treatment applications. With a 16-inch diameter and 65-inch height, it offers a storage capacity of approximately 185 liters (49 gallons), making it suitable for various filtration needs.
Key Features:
Material Composition: The tank features a high-density polyethylene (HDPE) inner shell and an outer fiberglass shell with epoxy resin, ensuring exceptional strength and chemical resistance. This construction makes the tank corrosion-resistant and suitable for long-term use in harsh environments.
Design and Compatibility: Equipped with a 4-inch top opening, the Pentair 1665 FRP tank is compatible with various valves, including Fleck, Clack, Autotrol, and CSI valves. An adapter is available for compatibility with 2.5-inch valves, offering flexibility in system integration.
Performance Specifications:
Maximum Operating Pressure: 150 psi (10 bar)
Maximum Operating Temperature: 49°C (120°F)
Safety Factor: 4:1
Burst Pressure: 600 psi
Cycle Testing: Tested to 100,000 cycles without leakage
Certifications: NSF Certified by WQA, meeting or exceeding ISO, ASME, and WQA standards.
Applications: Ideal for use in water softeners, backwashing filters, and reverse osmosis (RO) systems. The tank is commonly utilized for pre-treatment processes, such as activated carbon filtration, to remove impurities like color and odor from raw water sources.
Maintenance and Durability: The FRP construction ensures low maintenance requirements and a long service life. The tank's design minimizes the risk of leaks and structural damage, providing a reliable solution for water treatment needs.
In summary, the Pentair 1665 FRP tank is a durable and versatile component for water treatment systems, offering high performance, compatibility with various valves, and resistance to corrosion, making it a valuable asset for both residential and commercial applications.

