Taco 1635E3E2 1600 In-Line Centrifugal Pump 1HP 3PH

Taco 1640E 1600 Series Cast Iron 3/4HP 1PH

The Taco 1640E 3/4HP 1PH is a rugged in-line centrifugal pump designed for closed-loop hydronic heating and cooling systems. Mechanically, it features a 2-inch flanged cast iron volute and a high-efficiency impeller optimized for stable fluid circulation. The close-coupled design ensures perfect concentric alignment between the 3/4HP motor and the pump shaft, which is critical for reducing radial loads and extending the life of the high-performance mechanical seal. Its back pull-out architecture allows for internal maintenance without disturbing the system’s main piping connections.

Driven by a 3/4HP single-phase motor, the 1640E offers an efficient electrical solution for standard 115/230V commercial circuits. The motor features internal thermal protection and is precision-aligned to the pump casing to reduce vibration harmonics. This stable electrical drive ensures that the motor operates at peak efficiency, protecting the copper windings from heat degradation during continuous-duty cycles and providing reliable performance for building heating zones with significant head requirements.

Key Features of Taco 1640E

• Durable cast iron construction with 2 inch flanges
• Efficient 3/4HP single-phase NEMA motor
• Compact in-line centrifugal mechanical design
• NEMA standard motor frame for easy replacement
• Back pull-out design for simplified maintenance
• Reliable high-temperature mechanical seal
• Maximum working pressure: 175 PSI