Armstrong 106285MF-136A - S-57-3 Cast Iron Circulator Pump, 3/4 HP, Three-Phase
Armstrong 106285MF-136A - S-57-3 Cast Iron Circulator Pump, 3/4 HP, Three-Phase
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Designed to provide robust circulation in commercial heating and cooling loops, the Armstrong S‑57‑3 cast‑iron pump ensures reliable flow. Featuring the **106285MF-136A** model designation, this 3/4 HP, 3‑phase unit delivers consistent performance for demanding applications.
The pump’s cast‑iron body houses a bronze‑fitted impeller that creates steady hydraulic pressure while minimizing wear. Its triple‑phase motor reduces vibration, and the standard 2‑in. flanged connections simplify integration into existing pipework.
Key System Performance Baselines:
- Flow Capacity: Up to 30 GPM at 30 psi, supporting medium‑size hydronic loops.
- Head Rise: Maximum of 40 ft, ensuring adequate pressure across the system.
- Power Efficiency: 3/4 HP motor meets IEC efficiency standards for reduced energy use.
- Durability: Cast‑iron construction and bronze‑fitted components resist corrosion and extend service life.
⚠️ Application Profile: Ideal for office building boilers, hotel hot‑water recirculation, industrial process heating, and large‑scale HVAC chillers.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 106285MF-136A |
| Model Designation | S-57-3 |
| Horsepower | 3/4 HP |
| Phase | 3‑Phase |
| Body Construction | Cast Iron |
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Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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