Hydranautics
About
Hydranautics, part of the Nitto Group since 1987, has operated out of Oceanside, California since its founding in 1963 and entered the reverse osmosis membrane field in 1970, becoming the first membrane manufacturer to earn ISO 9001 certification. The company manufactures at facilities in Oceanside and Japan's Shiga Region, with global sales offices across the Americas, Europe, and Asia. Its membrane portfolio spans four technology categories: reverse osmosis, nanofiltration, ultrafiltration, and microfiltration. The RO line includes the SWC series for seawater desalination, the CPA series for high-purity brackish water applications in pharmaceutical and power generation, the ESPA series engineered for energy-efficient operation, and the LFC series featuring LD Technology that combines a neutrally charged surface with hydrophilicity to resist organic and colloidal fouling. The PRO series addresses demanding niche applications including zero-liquid-discharge, mining, and oil and gas. On the NF side, the ESNA series delivers ultra-low-pressure softening and selective ion removal, while HYDRACoRe targets color removal with minimal salt rejection. UF and MF products include the HYDRAcap MAX hollow fiber module and the HYDRAsub submerged membrane for MBR applications. Hydranautics also provides IMSDesign Cloud projection software for system design and the RODataXL normalization program, along with engineering services, field support, and element autopsy capabilities. Markets served include municipal drinking water, seawater desalination, water reuse, semiconductor fabrication, food and dairy processing, and agricultural irrigation.
Key Products
High-rejection spiral-wound membranes for seawater desalination with LD Technology and MAX high-area configurations, offering up to 99.8% salt rejection
High-rejection composite polyamide membranes for brackish water and high-purity applications, available in 4-inch and 8-inch configurations with 99.7-99.8% rejection
Energy-saving polyamide membranes with the highest permeability for reduced operating costs in municipal and industrial brackish water applications
Neutrally charged, hydrophilic membranes designed to minimize organic and colloidal fouling in wastewater reuse and surface water treatment
High-rejection, low-fouling, ion-selective, ultra-high-pressure, and high-temperature RO and NF membranes for ZLD, mining, textile, and oil and gas applications
Ultra-low pressure NF membranes for softening, pesticide removal, and 50-90% salt rejection in potable and process water applications
Sulfonated polyethersulfone spiral-wound membranes for color removal with minimal salt removal in drinking water and industrial applications
PVDF hollow fiber UF modules with 0.08 micron pore size for pretreatment of RO/NF systems and potable water production
PVDF submerged hollow fiber membrane for MBR applications and RO pretreatment
Specialized RO and NF membranes for dairy CIP environments, divalent ion separation, and dairy process polishing
Polysulphone microfiltration membrane with 300K MWCO for clarification of sugar, enzyme, fruit and vegetable juice, and wine streams
Cloud-based membrane projection software for RO, NF, and UF system design and simulation with multi-language support
RO normalization program for tracking plant performance over time and generating operational graphs and normalization charts
Service Area
National coverage
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