Structural FRP Commercial & Residential Pressure Vessels

Structural FRP Vessels are lightweight, high-strength composite pressure tanks designed for residential, commercial, and industrial water treatment systems. Built with a continuous fiberglass winding shell over a seamless polyethylene inner liner, these tanks provide superior corrosion resistance and high-pressure performance. Available in standard polyester matrix resin or specialized chemical-resistant vinylester construction, they serve as the industry standard for media filtration, water softening, and deionization systems.

Applications: Residential water softeners, commercial media filters (carbon, sand, multimedia), deionization (DI) systems, and pre-treatment for reverse osmosis plants.

Specification

Details / Standard Value

Construction Matrix

Standard Polyester or Chemical-Resistant Vinylester

Inner Shell Material

High-Density Seamless Polyethylene (PE)

Outer Reinforcement

High-Tensile Fiberglass Filament Winding

Maximum Operating Pressure

150 PSI (10.3 Bar)

Maximum Operating Temp.

120°F / 49°C (Polyester) | 150°F / 65°C (Vinylester)

Burst Pressure / Safety Factor

600 PSI Minimum Burst (4:1 Safety Factor)

Fatigue Cycle Testing

Tested to 250,000 cycles without leakage (NSF rated to 100,000)

Standard Certifications

Certified by NSF International to NSF/ANSI 61 & NSF/ANSI 44

Available Color Options

Blue, Black, Natural

Warranty Coverage

10-Yr (6"–13" Softener/Filter) | 5-Yr (14"–16" Softener/Filter) | 2-Yr (Vinylester DI)

Pricing varies based on order volume, customization, and feed water specifications. Contact our sales team today for a tailored quote built for your exact project requirements.


Request a Quote

Interested in one of our products? Request a personalized pricing quote by contacting us with details of the product(s) you are interested in, along with any relevant information such as required quantity, specifications, application, or project requirements. Our team will review your request and get back to you with a tailored quotation and any additional information you may need.

Phone

+923212490371

Email

sales@stpioneercorporation.com