High-Pressure FRP Membrane Housings (2.5", 4", & 8" Multi-Element Series)

High-Pressure FRP Membrane Pressure Vessels are engineered containment vessels designed to house spiral-wound reverse osmosis (RO), nanofiltration (NF), and ultrafiltration (UF) membrane elements in commercial and industrial desalination plants. Operating across a wide pressure spectrum from 300 PSI to 1200 PSI, these heavy-duty composite housings are available in 2.5", 4", and 8" internal diameters with multi-element capacities holding from 1 to 7 membrane elements per vessel. Built to precise international dimensional standards, they offer full, seamless compatibility with all major global membrane manufacturers.

Applications: Industrial RO plants, brackish water treatment, high-pressure seawater desalination (SWRO), wastewater recovery, zero liquid discharge (ZLD) systems, and pharmaceutical pure water systems.

Specification

Details / Standard Value

Operating Pressure Range

300 PSI, 450 PSI, 600 PSI, 1000 PSI, to 1200 PSI

Vessel Diameters

2.5-Inch, 4.0-Inch, and 8.0-Inch

Element Capacity

Accommodates 1 to 7 Membrane Elements per Housing

Construction Material

High-Grade Epoxy Resin / Filament Wound Fiberglass

Porting Configurations

End Port (EP) and Side Port (SP) High-Flow Options

Operating Temperature

14°F to 150°F (-10°C to 66°C)

Testing Standards

Hydrostatically Tested to 1.5x Maximum Operating Pressure

Brand Compatibility

Universal fit for DOW (DuPont/FilmTec), Hydranautics, Toray, CSM, LG Chem, Vontron, and GE

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