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

Taco 1640D Stainless Steel Pump 3/4HP 1PH 2″ Flange

The Taco 1640D is a high-performance in-line centrifugal pump featuring a 2-inch flange and a stainless steel casing for superior corrosion resistance in open-loop and potable water systems. The mechanical design is optimized for high-volume recirculation, utilizing a stainless steel shaft sleeve and a precision-ground mechanical seal to prevent leaks. The 3/4HP configuration provides the mechanical thrust required for efficient circulation in larger hotels and hospitals, ensuring water purity remains uncompromised by rust or scaling over the life of the unit.

Powered by a 3/4HP single-phase motor, the 1640D offers robust electrical performance for standard 115V or 230V circuits. The motor is thermally protected and designed for continuous duty in high-ambient temperature environments like central boiler rooms. Consistent electrical torque management minimizes shaft run-out, which preserves the integrity of the carbon-ceramic seal faces and ensures a silent, vibration-free operation throughout the building’s plumbing network, even during high-cycle demands.

Key Features of Taco 1640D

• Corrosion-resistant stainless steel for potable water
• Large 2 inch flanged mechanical connections
• Powerful 3/4HP single-phase motor for high-volume service
• NEMA standard motor for easy electrical service
• Back pull-out design simplifies seal maintenance
• Ideal for large-scale domestic hot water return systems
• Maximum fluid temperature: 250°F