Taco 1600 Series In-Line Pumps

Taco 1600 Series in-line pumps are close-coupled circulators built for hydronic heating, cooling, and recirculation systems where a compact footprint matters. The line spans 15 models, covering flow rates from 20 to 200 GPM and head capacities up to 68 feet, which covers most residential and light commercial hydronic loads. A replaceable, permanently-lubricated bearing cartridge sits at the center of the design, isolating the bearing from system heat to extend service life. Construction includes a one-piece enclosed impeller, a cupro-nickel shaft sleeve, and a standard mechanical seal, all rated for 175 psi cold working pressure. Contractors use these pumps across LoadMatch systems, air conditioning loops, boiler recirculation, and cooling towers, among other closed-loop applications. Because the bearing cartridge is standardized across the whole 1600 Series line, a tech carrying one spare cartridge can service multiple pump sizes without stocking model-specific parts.

Subcategories

• Standard-Temperature 1600 Series Pumps: Most closed-loop hydronic jobs run within the standard temperature rating of 250 degrees Fahrenheit, which covers typical boiler recirculation and air conditioning loop temperatures. These pumps use the same one-piece enclosed impeller and cupro-nickel shaft sleeve found across the 1600 Series line. Working pressure tops out at 175 psi for cold water service, dropping to 125 psi at rated temperature. For straightforward heating or cooling circulation jobs, the standard-temperature configuration covers most residential and light commercial specs.
• High-Temperature 1600 Series Pumps: Some boiler and process applications push past 250 degrees Fahrenheit, which is where the hi-temp seal option comes in, raising the rating to 300 degrees Fahrenheit. Contractors spec this configuration for higher-temperature commercial boiler loops or process heating systems. It uses the same cartridge bearing design as the standard-temperature pumps, so field service doesn't change based on the seal option. Confirming the system's operating temperature upfront avoids ordering the wrong seal configuration.
• Bearing Cartridge and Seal Components: Every 1600 Series pump uses a replaceable, permanently-lubricated bearing cartridge, and the design is standardized across all 15 models in the line. The cool-bearing cartridge approach isolates the bearing from system heat, which extends bearing life compared to a pump without thermal isolation. A standard mechanical seal and flexible coupler round out the wear components that techs typically service in the field. Carrying one cartridge type on the truck can cover service calls across multiple pump sizes.
• LoadMatch and Recirculation Applications: Taco built the 1600 Series with LoadMatch hydronic distribution systems specifically in mind, alongside general air conditioning, recirculation, and booster service uses. Cooling towers and heating system circulation are also common applications for this line, given the flow range up to 200 GPM. A one-piece enclosed impeller keeps performance consistent across these varied duty cycles. Matching the specific application to the right flow and head combination within the 15-model lineup is the main sizing consideration.

Buying Guide

Start by pulling the flow rate and head requirement from the system design, since the 1600 Series spans 20 to 200 GPM and up to 68 feet of head across 15 models. Getting those two numbers right up front narrows the pump selection down before looking at any other spec.

Temperature is the next decision point. Standard-temperature Taco 1600 Series In-Line Pumps are rated to 250 degrees Fahrenheit, which covers most residential and light commercial hydronic loops, while systems running hotter need the hi-temp seal option rated to 300 degrees Fahrenheit. Working pressure also matters on the quote: 175 psi for cold water service, dropping to 125 psi once the system reaches rated temperature, so pressure-testing protocols should account for that difference.

For service planning, remember that every model in the line uses the same replaceable bearing cartridge design. A contractor stocking one cartridge type can support service calls across the whole 1600 Series lineup rather than tracking down model-specific parts. Application also plays a role in spec'ing the right pump: LoadMatch distribution systems, cooling towers, and boiler recirculation loops all draw from this same line, so confirming the intended use helps rule out oversized or undersized options before ordering.

Frequently Asked Questions

What's the flow and head range on Taco 1600 Series pumps?

The 1600 Series covers 20 to 200 GPM in flow and up to 68 feet of head, spread across 15 different models. The 20-200 GPM range covers most residential and light commercial hydronic circulation needs.

Can a 1600 Series pump handle high-temperature boiler loops?

Yes, with the hi-temp seal option, which raises the temperature rating from the standard 250 degrees Fahrenheit up to 300 degrees Fahrenheit. Confirm the system's operating temperature before ordering so the correct seal configuration ships the first time.

What working pressure are these pumps rated for?

Taco rates the 1600 Series for 175 psi in cold water service, dropping to 125 psi once the system reaches its rated operating temperature. Both figures should factor into any pressure-testing plan for the installation.

Do all 1600 Series pumps use the same replacement parts?

The bearing cartridge design is standardized across all 15 models in the line, so a single cartridge type services multiple pump sizes. The mechanical seal and flexible coupler are also common wear components across the series.

What applications is the 1600 Series built for?

Taco designed this line for LoadMatch hydronic distribution systems, air conditioning loops, boiler recirculation, booster service, and cooling towers, among other closed-loop uses. The 20-200 GPM flow range covers most of those applications without needing a larger pump line.