Nelsen 900K WS2QC-S4 Min Tnk

The Nelsen 900K WS2QC-S4 is a large-capacity commercial water softener delivered as a coordinated System 4 package, bringing 900,000 grains of efficient softening to demanding facilities. A Nelsen WS2 2" meter-equipped valve governs the system, regenerating on actual usage to conserve salt and water.

High capacity, coordinated build

The System 4 configuration provides a matched set of components specified to work together, reducing installation complexity at this scale. Combined with metered control, it offers both efficiency and reliability for large commercial and industrial sites.

• 900,000-grain softening capacity for very high demand
• System 4 configuration for a matched, ready-to-install package
• Nelsen WS2 2" meter-equipped commercial valve, top mount
• Epoxy-coated lead-free brass valve body for corrosion resistance
• Metered regeneration based on real consumption
• Top-mount valve position for service access

At this capacity, the system serves major manufacturing plants, large institutional campuses, and high-volume process applications where hard water rapidly scales boilers, cooling systems, and heat exchangers. Continuous removal of calcium and magnesium is essential to keeping such operations efficient and protecting expensive equipment from premature wear and energy loss. Metered regeneration ensures the softener recharges only when measured usage warrants, conserving substantial salt and water over its service life. The Nelsen WS2 2" valve provides proven, precise commercial control, and its epoxy-coated lead-free brass body supports potable service while resisting corrosion under heavy, continuous duty. For large facilities that need powerful, efficient softening delivered as a complete, coordinated System 4 package, the Nelsen 900K WS2QC-S4 is a capable, professionally engineered choice built to handle serious commercial loads.

Softening is accomplished by ion exchange, where resin beads exchange hardness ions for sodium and brine regeneration renews the bed for continued service. Because this is a matched System 4 package, the resin volume, distributors, gravel underbed, and brine controls are all sized to the rated capacity, giving predictable performance and easier installation. Maintenance is focused on the brine tank and its salt supply. At this large capacity, the protection the softener affords is considerable: keeping scale off major boilers, cooling towers, and heat exchangers preserves efficiency, avoids costly descaling, and extends equipment life. For large operations that want powerful, efficient softening delivered as a coordinated, ready-to-run system, it is a strong, dependable solution.