High Performance FRP Composite Pressure Tank
High-Performance FRP Composite Pressure Tank are engineered containers designed for residential, commercial, and industrial water treatment systems. Manufactured with a 100% rust-proof integrated High-Density Polyethylene (HDPE) inner liner and reinforced with high-tensile fiberglass filament winding, these composite vessels deliver exceptional chemical corrosion resistance, thermal insulation, and electrical isolation. Weighing only one-third of equivalent steel tanks, they serve as core reaction and media-loading vessels for water softening, ion exchange, multi-media filtration, and reverse osmosis pre-treatment systems.
Applications: Industrial water softening plants, commercial filtration systems, drinking water pre-treatment, ion exchange deionization (DI), ultra-pure water production, and municipal water filtration setups.
Specification | Details / Standard Value |
Inner Shell Build | Integrated Seamless High-Density Polyethylene (HDPE) Liner |
Outer Reinforcement | High-Tensile Fiberglass Filament Winding with Epoxy Resin |
Size Range | Over 130 Models (From 5" x 13" to 63" x 86") |
Top/Bottom Openings | 2.5" Threaded, 4"-8UN Threaded, or 6" Flanged Openings |
Maximum Operating Pressure | 150 PSI (10.5 Bar) |
Maximum Vacuum Rating | 17 KPa (5" Hg) |
Operating Temperature | 34°F to 122°F (1°C to 50°C) |
Testing Standards | 100,000 Cycle Fatigue Tested | 4x Operating Pressure Burst Tested |
Available Color Options | Natural, Blue, Grey, Black, Green |
Certifications | NSF/ANSI Standard 44 Certified |
Warranty Coverage | 10-Year Warranty (5" to 13" Tanks) | 5-Year Warranty (14" to 63" Tanks) |
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
sales@stpioneercorporation.com

