Armstrong 106285MF-133 S-57-1 AB Bronze Centrifugal Pump 3/4 HP
Armstrong 106285MF-133 S-57-1 AB Bronze Centrifugal Pump 3/4 HP
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 106285MF-133 |
| Model Designation | S‑57‑1 AB |
| Body Construction | Bronze |
| Motor Horsepower | 3/4 HP |
The S‑57‑1 AB bronze centrifugal pump provides steady, energy‑efficient water flow for hydronic heating and cooling loops. Engineered with a full‑bronze construction, the **106285MF-133** model delivers 3/4 hp performance suited for residential and light‑commercial applications.
This single‑stage, vortex‑type pump moves fluid by converting rotational energy from the motor into kinetic energy through its impeller, then converting it to pressure via the volute housing, ensuring consistent pressure and flow across system demands.
Key System Performance Baselines:
- Flow Capacity: Approximately 20 gpm at 30 psi, meeting typical heating loop requirements.
- Power Consumption: 0.75 hp motor draws ~650 W, supporting high efficiency operation.
- Material Durability: All‑bronze impeller and housing resist corrosion and cavitation.
- Operating Pressure: Rated for up to 150 psi, suitable for most residential pressure ranges.
- Noise Level: Quiet operation under 55 dB(A), ideal for indoor installations.
⚠️ Application Profile: Ideal for boiler feedwater, radiators, baseboard heating, domestic hot water recirculation, and small commercial hydronic loops.
