Goulds Booster Pump, CI, 1 HP, 7 GPM

The Goulds 7GBC10-CI is a horizontal multi-stage booster pump built around a durable cast iron casing, pairing a 1 HP close-coupled motor with a 7 GPM flow rating. Engineered by Xylem for demanding commercial reverse osmosis duty, its multi-stage layout stacks pressure across several impeller chambers to deliver the high, steady feed pressure that RO membranes require to produce consistent permeate. In a commercial water-treatment setting, the pump sits ahead of the membrane array and supplies the elevated pressure that drives water across the semipermeable surface, directly influencing both recovery and output quality.

Inside, glass-filled engineered composite impellers and diffusers resist both corrosion and abrasion, while 300-series stainless steel rabbit-lock bowls keep every stage in positive alignment without gaskets. An O-ring casing seal handles high-pressure operation and still breaks down easily when service is required, so technicians can inspect or rebuild the wet end with minimal downtime. The fixed-impeller design contributes to smooth, quiet running that protects downstream plumbing and membranes from pressure spikes.

Specifications

• Motor: 1 HP, close-coupled NEMA 56J design
• Flow rate: 7 GPM with variable, selectable capacity
• Casing material: cast iron (CI)
• Suction and discharge: 1" NPT connections
• Bearings: ball bearings rated for continuous radial and axial thrust loads
• Alternate part number: 10GBC07-CI

The centrifugal design lets installers fine-tune flow within the pump's operating range to match a given RO skid, and a choice of mechanical seal face materials and elastomers tailors the unit to specific water chemistries. Motors are offered in open drip-proof or enclosed configurations and are rated for continuous operation, making this Goulds booster a dependable pressure source for commercial water-treatment systems that run around the clock.

Because the pump is purpose-built for reverse osmosis service, it pairs naturally with pretreatment such as sediment and carbon filtration, which protects the impellers and seal from particulate wear and extends service life. Routine attention to the mechanical seal and bearings keeps the 7GBC10-CI performing reliably for years in light-commercial and industrial RO applications, delivering the consistent feed pressure that high-purity water production depends on.

Installers will appreciate that the 1" NPT suction and discharge ports make plumbing the pump into an existing commercial skid straightforward, and the close-coupled motor keeps the overall footprint compact for tight equipment rooms. When sized correctly against the membrane array's pressure and flow requirements, the cast iron 7GBC10-CI provides a robust, economical pressure source that holds up to the rigors of continuous commercial reverse osmosis production.