Taco 0018E-SF4 - ECM High-Efficiency Circulator - Stainless Steel, 16 GPM, Universal Flanged

The Taco 0018E-SF4 is a high-efficiency, variable-speed wet rotor circulator pump from the Viridian series, featuring a stainless steel casing and an ECM permanent magnet motor. Designed for closed-loop domestic hot water recirculation systems, it offers multiple operating modes, energy savings, and reliable performance. With its easy-to-use dial and built-in diagnostics, the 0018E-SF4 provides straightforward setup and dependable operation for a range of hydronic applications.

Specifications

• Flow rate: up to 16 gallons per minute (GPM)
• Maximum head: 18 feet
• Maximum operating pressure: 125 psi
• Voltage: 120V, 60 Hz, single phase
• Operating power: 4–44W
• Amperage: up to 0.54A
• Motor speed: variable, 1590–4830 RPM
• Fluid temperature range: 36°F to 230°F (2°C to 110°C)
• Application: indoor use with water or up to 50% water/glycol
• Restrictions: not suitable for open-loop potable water or chilled water systems
• Casing: stainless steel
• Flange connection: 4-bolt flange
• Motor type: ECM permanent magnet
• Display: 5-color LED shows mode and diagnostics
• Insulation: double insulated, no ground wire required

Features

• Operating modes: infinitely variable fixed speed, constant pressure, and proportional pressure for system flexibility
• High-efficiency ECM motor: reduces energy consumption by up to 85%
• SureStart®: automatically purges air and unblocks the pump to avoid callbacks
• BIO Barrier®: protects pump from contaminants inside the system
• Integral Flow Check (IFC®): built-in check valve eliminates need for an external valve
• Compatibility: works with Taco ZVC zone valve controls and SR switching relays for ON/OFF operation
• Quiet operation: engineered for low noise and vibration

Applications

• Closed-loop domestic hot water recirculation
• Hydronic heating systems with zoning by valves or circulators
• Systems with panel radiators and thermostatic radiator valves (TRVs)
• Residential and light commercial energy-efficient system upgrades

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