Taco 1634E 1600 Series Cast Iron Centrifugal Pump 1HP 1PH

Taco 1634E 1600 Series Cast Iron 1HP 1PH

The Taco 1634E 1HP 1PH is a high-capacity in-line centrifugal pump featuring a 2-inch flanged cast iron volute. Mechanically, it is designed for heavy-duty closed-loop hydronic heating and cooling systems where high head and high volume are required. The close-coupled design ensures the 1HP motor is perfectly aligned with the impeller, reducing radial loads on the high-temperature mechanical seal. This model utilizes a back pull-out architecture, allowing the rotating assembly to be serviced without disconnecting the pump from the main HVAC piping.

Powered by a 1HP single-phase motor, the 1634E is compatible with standard 115V or 230V building electrical systems. The motor is NEMA-standard and thermally protected, providing high starting torque to handle high-inertia fluid loads. Consistent electrical synchronization minimizes shaft vibration, which preserves the integrity of the internal bearings and ensures a quiet, vibration-free operation throughout the building’s infrastructure.

Key Features of Taco 1634E

• Rugged cast iron volute with 2 inch flanges
• Powerful 1HP single-phase NEMA standard motor
• Close-coupled mechanical design for space savings
• Back pull-out design for simplified field service
• High-temperature mechanical seal for HVAC service
• Max working pressure: 175 PSI
• Maximum fluid temperature: 250°F