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Small bronze circulating pump with sweat connections, 1/40 hp 115V motor

Taco Inc

Taco Inc 003-BC4 Trap 1/40 hp 115V 0.43 A

SKU CH-1Y4C-8STJV MPN 003-BC4

Circulates potable water at up to 6 gpm with a 1/40 hp motor on 115V single-phase power

  • TypeDrain Components
  • 1/40 hp circulator moves potable water efficiently
  • 115 V single-phase power suits standard residential wiring
  • Sweat connections on 1/2 in pipe simplify copper installation
  • EPDM body gasket resists hot-water degradation
  • 43 A draw keeps energy use low

HVAC Circulating Pump 1/40 hp

The Taco 003-BC4 is a potable water circulating pump rated at 1/40 horsepower for 115V single-phase supply. It uses sweat connections for 1/2 inch intake and discharge pipes with a 4 1/4 inch face-to-face dimension. The unit draws 0.43 A at nameplate voltage and operates at a single speed.

Installers needing a compact bronze circulator

Plumbers fitting hydronic heating or domestic hot-water recirculation loops will find the pump compatible with potable systems and sealed with an EPDM body gasket. The 5 ft maximum head and 6 gpm flow at 1 ft of head suit low-pressure, low-flow circuits. Installers requiring higher head, variable speed or flanged connections should look at other models.

Continuous duty at rated conditions

Under sustained operation the motor runs at its fixed 1/40 hp output with a steady 0.43 A draw on 115V AC. Flow falls to zero at the 5 ft head limit, so the pump only maintains circulation within its published curve. The single-speed design means output does not vary with load changes.

Highlights

  • 1/40 hp circulator moves potable water efficiently
  • 115 V single-phase power suits standard residential wiring
  • Sweat connections on 1/2 in pipe simplify copper installation
  • EPDM body gasket resists hot-water degradation
  • 43 A draw keeps energy use low

Specifications

TypeDrain Components
BrandTaco
Model003-BC4

Questions about this item

Does the Taco 003-BC4 require a 115V single-phase supply to operate?

Yes, the pump is rated for 115V AC single-phase power and draws 0.43 A at 1/40 hp.

Can I keep my existing 1/2 inch copper sweat piping when installing this pump?

The unit uses 1/2 inch sweat connections on both intake and discharge, matching standard copper piping.

How can I verify the pump is circulating water after installation?

With a 5 ft maximum head and 6 gpm flow at 1 ft of head, you should observe steady water movement through the potable system.

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