Bell & Gossett 90-31S Series 90 Centrifugal Pump 1/4HP

B&G 179040LF Series 90 Model 90-31S 1/4 HP Pump

The Bell & Gossett 179040LF (Series 90, Model 90-31S) is a compact, Lead-Free (LF) close-coupled centrifugal pump engineered to facilitate efficient fluid movement in space-constrained commercial plumbing systems. Its small-scale in-line volute is calibrated to maximize hydraulic lift for low-flow recirculation, while the Lead-Free construction ensures total safety for potable water distribution. By prioritizing a streamlined hydraulic path, this unit facilitates consistent thermal exchange and maintains structural stability, providing a robust solution for hot water recirculation where mechanical room space is limited.

Driven by a high-efficiency 1/4 HP Single Phase (S) motor, the 179040LF executes superior power delivery via a direct-coupled shaft configuration. The motor is engineered for quiet operation in residential or sensitive commercial environments, featuring advanced internal protection to neutralize thermal stress. By leveraging a precision-ground shaft and industrial-grade bearings, this configuration stabilizes rotational frequency and ensures long-term reliability without the maintenance requirements of traditional coupled pumps.

Key Features of B&G 179040LF 90-31S

• Compact close-coupled design for installation in tight spaces
• Lead-Free construction for safe potable water distribution
• Reliable 1/4 HP Single Phase motor optimized for efficiency
• Superior mechanical seal protects the motor drive from fluid ingress
• In-line mounting simplifies piping and mechanical support
• Durable body resists oxidative corrosion and mineral scaling
• Versatile application for small commercial DHW and HVAC loops