3/4" Bronze Circulator, 1/40 HP

Taco 006-B4 Bronze Circulator Pump – Compact, Reliable, and Maintenance-Friendly

The Taco 006-B4 Circulator Pump is a bronze-body, wet-rotor circulator designed for closed-loop hydronic heating and potable water recirculation systems. With a compact profile, quiet operation, and a field-replaceable cartridge design, this pump is engineered for high-efficiency water circulation in systems where space and performance matter.

Ideal for domestic hot water return lines and light-duty hydronic zones, the 006-B4 offers consistent flow rates at low head pressures, ensuring proper heat transfer and system efficiency in a variety of residential and commercial applications.

Technical Overview

• Horsepower: 1/40 HP
• Voltage: 115V, single-phase
• Flow Range: 0–11 GPM
• Max Head: 9.5 feet
• Max Working Pressure: 125 PSI
• Temperature Range: 40°F to 220°F
• Connection Type: Flanged
• Body Material: Low-lead bronze
• Dimensions: 5-1/8" Length x 3-15/16" Width

Core Features

• Replaceable Cartridge Design: Isolates all moving parts for simplified service and repair—no need to replace the entire unit.
• Self-Lubricating, Maintenance-Free Operation: Water-lubricated bearings eliminate the need for regular servicing.
• No Mechanical Seal: Reduces leak risk and common failure points found in conventional seal-based pumps.
• Low-Lead Bronze Body: Ideal for potable water systems and compliant with lead reduction standards.
• Direct Drive Motor: Improves energy efficiency and reduces operational noise.

Recommended Applications

• Hot water recirculation loops
• Hydronic baseboard or radiant heating zones
• Fan coil or air handler piping loops
• Residential or light commercial domestic hot water systems

Installation Notes

The Taco 006-B4 is designed for inline mounting in closed-loop or potable systems. It includes standard flanged connections and should be installed with proper isolation valves for serviceability. Ensure that system pressure, temperature, and flow characteristics fall within the product's rated performance envelope. Wiring must follow NEC and local code requirements.

Contractor Advantages

Designed with simplicity and serviceability in mind, the 006-B4 helps reduce labor time in both new installations and replacements. Its compact form factor fits tight mechanical rooms or recessed wall-mounted manifolds. The no-seal design and replaceable cartridge contribute to long service life and low maintenance frequency in the field.