Taco 1611eae8s000000 Inline Circulator Pump Less Motor

Product Description

The TACO 1611eae8s000000 is a cast iron inline circulator pump supplied without a motor, designed for hydronic heating and cooling systems in commercial and light industrial applications. The unit features a cast iron casing and bracket with a stainless steel impeller and shaft. Connections are 1.5 inches on both the suction and discharge ports. A replaceable bearing cartridge assembly isolates ball bearings from system fluid, supporting operating temperatures up to 250 degrees F. Licensed plumbers and mechanical contractors typically handle installation and commissioning of this equipment.

This pump is suited for closed-loop hydronic systems where an operator-selected driver motor will be matched to the 4.75 inch nominal impeller diameter. The rear pull-out design allows full removal of the motor and rotating assembly for servicing without breaking into the connected piping. The fluid path uses a mechanical seal assembly with a ceramic seat, carbon rotor, and EPT elastomers, which supports routine field maintenance with standardized components. The bearing cartridge and seal configuration are designed for straightforward replacement during scheduled service intervals.

Key Features

• Cast iron casing and bracket with stainless steel impeller and shaft for durability in hydronic service
• 1.5 inch suction and 1.5 inch discharge connections for direct inline piping installation
• 4.75 inch nominal impeller diameter — motor must be sourced and matched separately
• Replaceable bearing cartridge assembly isolates ball bearings from system fluid
• Mechanical seal with ceramic seat, carbon rotor, and EPT elastomers for reliable fluid containment
• Rear pull-out design allows motor and rotating component removal without disturbing piping
• Rated for operating temperatures up to 250 degrees F

Compatibility

Designed as an OEM-style inline circulator for closed-loop hydronic heating and cooling systems requiring a separately sourced driver motor matched to a 4.75 inch impeller.

Installation Notes

Installation should be performed by a licensed plumber or mechanical contractor in accordance with applicable local mechanical codes and ASHRAE hydronic system guidelines. Shut down and depressurize the hydronic system and allow it to cool before working on any wet components. An appropriately sized and rated motor must be selected and mounted before the pump is placed into service. Verify flange bolt torque and seal integrity before returning the system to operating pressure.