This category covers essential supporting components used alongside Tri-High's core membrane and desalination systems — parts that are critical to system performance but function as accessories rather than standalone treatment units.
1. RO Pressure Vessel
RO pressure vessels are the structural housings that contain reverse osmosis membrane elements, allowing feed water to be pressurized and forced through the membrane for effective separation. Built to withstand high operating pressures (commonly up to 300–1200 psi depending on application), these vessels are typically constructed from fiberglass-reinforced plastic (FRP) for corrosion resistance and long service life, especially important in seawater and brackish water applications where saltwater exposure would otherwise degrade standard materials. Pressure vessels are sized to house single or multiple membrane elements in series, and their design directly affects system efficiency, ease of membrane replacement, and long-term operating cost.
2. Seawater Desalination RO Membrane
This is the core filtration element used in seawater reverse osmosis systems, engineered to reject dissolved salts, minerals, and other impurities while allowing purified water to pass through. Designed specifically for high-salinity seawater feed (as opposed to brackish or lower-TDS water), these membranes typically feature a thin-film composite (TFC) polyamide structure that offers high salt rejection rates (commonly 99%+) while maintaining practical flux rates under high-pressure operation. These membranes are the working component installed inside pressure vessels, and their performance, rejection rate, flux, and fouling resistance largely determine the overall efficiency and output quality of a seawater desalination system.
