Taco 0011-CF Pump 3/4″ Flanged Circulator

High-head, low-flow hydronic circuits can consider the Taco 0011-CF flanged circulator with universal connection options from 3/4 inch through 1-1/2 inches, a listed maximum head of 31 feet, and maximum flow of 30 GPM.

The model is intended for hydronic heating where system resistance requires more head than standard low-head circulators. The supplied record does not identify motor voltage, phase, frequency, temperature, pressure, cartridge construction, or efficiency, so those factors require confirmation before equipment approval.

Technical Specifications

- Maximum head is listed as 31 feet, providing an upper reference for resistance comparison.
- Maximum flow is listed as 30 GPM, which does not define the normal operating point.
- Universal flanged connections from 3/4 to 1-1/2 inches support replacement fitment review.
- Cast-iron construction provides the documented body material for hydronic heating applications.
- The high-head classification narrows selection toward systems with greater calculated resistance.
- Flanged installation requires companion-flange compatibility and proper gasket alignment.
- Hydronic heating is the stated application context for project-level screening.

Hydraulic Performance and Application

The listed maximum performance is 30 GPM at 31 feet of head, but those limits are not simultaneous operating guarantees. High-head, low-flow hydronic heating is the documented application, and no exact efficiency value or complete curve is supplied for confirming duty-point operation.

Installation Requirements

Verify the selected 3/4-inch to 1-1/2-inch flange size, piping alignment, flow direction, electrical requirements, temperature limits, working pressure, mounting position, and service clearance before startup. The actual system curve should be compared with the circulator curve rather than using maximum values as design conditions.

Warranty and Maintenance

Taco provides a 3-Year Limited Warranty from date of manufacture for 00 Series circulators and parts proven defective under normal use. Improper installation, misuse, misapplication, petroleum-based fluids, certain chemical additives, and operation contrary to instructions are excluded. Cartridge and circulator condition should be reviewed during service planning. Mulmotor can assist with product details and order-related questions.