OEM Demineralized Water Drinkable Factories & Advanced Factory Solutions

Pure demineralized water produced by double-pass RO or EDI has a conductivity < 1.0 μS/cm and TDS < 2 mg/L. Drinking it directly is neither recommended nor palatable: it is chemically aggressive, poorly buffered, and lacks essential electrolytes like Calcium ($Ca^{2+}$) and Magnesium ($Mg^{2+}$). In OEM factory designs, our systems incorporate a mandatory, automated post-demineralization mineralization and pH stabilization loop that injects controlled food-grade minerals to bring TDS to 100–250 mg/L and pH to 7.2–7.8, aligning precisely with World Health Organization guidelines.

To provide an accurate technical proposal and mass balance, our design engineers require a comprehensive raw water analysis (including TDS, conductivity, total hardness, silica, iron, manganese, SDI, and total suspended solids), operating temperature variations throughout the year, required product water flow rate ($m^3/h$ or GPD), final intended water usage (potable vs. boiler make-up), power supply characteristics (e.g., 380V/440V/480V at 50Hz/60Hz), and preferred footprint format (open skid or insulated container).

Because our containerized units are fully prefabricated, pre-piped, wired, and load-tested (FAT) in our Shanghai manufacturing facility, site-work is restricted to raw intake connection, permeate and reject discharge line tie-in, and primary power terminal connection. Typical mechanical start-up and chemical stabilization are achieved within 5 to 15 days from arrival on site.

Material specifications are engineered strictly against the raw water's Pitting Resistance Equivalent Number (PREN). For seawater intake and high-pressure reverse osmosis sections, we employ Super Duplex Stainless Steel (2507, UNS S32750) or high-grade 904L alloys. For low-pressure permeate, remineralization, and distribution loops, we utilize sanitary grade 316L stainless steel, UPVC, or PVDF, completely eliminating internal degradation and heavy metal leaching into drinking supplies.

Yes. A primary pillar of our business is providing engineering, procurement, and manufacturing (EPCM) support as an OEM/ODM partner. We offer custom container branding, proprietary PLC software interface integration (Siemens, Allen-Bradley, or Omron), localized electrical certifications, dual-language HMI controls, and comprehensive factory acceptance test (FAT) documentation packages under private label.