Goulds Booster Pump, SS, 3 HP, 18 GPM

When a commercial reverse-osmosis system needs more muscle, the Goulds 18GBS30-SS steps up with a 3 HP motor and an 18 GPM rating in a rugged, all-stainless-steel package. Built by Xylem, this horizontal multi-stage booster pump is engineered to supply the elevated, steady feed pressure that larger RO membrane arrays require to maintain strong production rates. As systems scale up, having a pump matched to the increased membrane area is essential to keeping recovery and rejection within design targets and to avoiding the production drop-off that comes from an undersized feed.

Built for Continuous Commercial Duty

The multi-stage design delivers steady, quiet, vibration-free performance, while the stainless steel construction provides excellent resistance to the corrosive conditions found in water-treatment service. Glass-filled engineered composite impellers and diffusers shrug off abrasion, and 300-series stainless steel rabbit locks keep the internal bowls aligned without gaskets. An O-ring casing seal ensures reliable high-pressure sealing and makes disassembly for maintenance refreshingly simple, while the mechanical seal can be specified with face materials and elastomers to suit the water chemistry on site.

• 3 HP, 18 GPM stainless steel multi-stage booster pump
• Smooth, low-vibration operation for sensitive RO systems
• Composite impellers resist corrosion and abrasion
• Gasket-free bowl alignment via stainless rabbit locks
• Close-coupled NEMA 56J motor rated for continuous service
• 1-inch NPT suction and discharge connections

With its higher horsepower and flow capacity, the 18GBS30-SS is well matched to mid-size commercial RO installations, light industrial water-treatment lines, and any application that has outgrown a smaller booster pump. The centrifugal design allows flow selection within a usable range, and the ball-bearing-supported motor carries both radial and axial thrust loads for dependable, long-term operation. Pair it with appropriate pretreatment and verify suction conditions to protect the seal during continuous runs. At 3 HP, attention to electrical supply and motor protection is worthwhile, since a properly sized circuit and overload protection keep the close-coupled motor running cool through long duty cycles. The all-stainless wetted path is forgiving of the chlorides and mineral content that can degrade lesser materials, so the pump stays efficient even as feedwater quality shifts. For integrators specifying a robust, serviceable boost pump for a growing system, this Goulds unit is a proven performer that holds up to demanding continuous service.