Grundfos UPS15-58FC Circulator Pump 59896341
Grundfos UPS15-58FC Circulator Pump 59896341
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Grundfos UPS15-58FC (59896341) Super Brute 3-Speed Cast Iron Circulator Pump
Engineered for ultimate versatility in residential and light commercial hydronic heating systems, the Grundfos UPS15-58FC (Part Number 59896341) Super Brute is an industry-leading 3-speed wet-rotor circulator pump. Featuring a 2-bolt flanged connection, a 1/25 HP motor running on standard 115V single-phase power, and a removable integrated check valve, this cast iron unit adapts easily to a wide range of system requirements.
The UPS15-58FC features a built-in multi-speed control switch that allows contractors to toggle between three speed settings (Low, Medium, and High) to precisely match system head loss and flow needs. Built with a high-strength composite PES impeller, ceramic radial bearings, and a stainless steel rotor can, this unit delivers whisper-quiet, maintenance-free performance without mechanical shaft seals or couplers.
Key System Performance Baselines:
- 3-Speed Super Brute Technology: Built-in 3-speed selector switch allows custom flow tuning, replacing over a dozen competitive circulator models with a single SKU.
- Removable Integrated Check Valve (FC): Includes a factory-fitted check valve to prevent thermo-siphoning and backflow without requiring extra piping fittings.
- Canned-Rotor Maintenance-Free Design: Self-lubricating wet-rotor construction operates whisper-quietly and eliminates shaft seal leaks.
- Built-In Thermal Protection: Internal motor protection safeguards against overheating and ensures long operational life.
⚠️ Application Profile: Designed for closed-loop hydronic heating, radiant floor heating, baseboard radiators, fan coil units, snow-melting systems, and solar thermal circulation loops requiring up to 17.2 GPM flow and 19.3 FT head up to 145 PSI. (Not intended for potable water applications).
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 59896341 |
| Model Designation | UPS15-58FC (Super Brute Series) |
| Connection Type / Size | 2-Bolt Flanged (GF 15/26 Flange) |
| Port-to-Port Dimension | 6.5 Inches (165 mm) |
| Motor Horsepower / Speeds | 1/25 HP (3 Speeds: High / Med / Low) |
| Electrical Characteristics | 115V / 1-Phase / 60 Hz (0.75A Max / 87W) |
| Max Flow Rate / Max Head | 17.2 GPM / 19.3 Feet Head |
| Housing Material | Cast Iron (EN-JL1030 / ASTM 30B) |
| Max Working Pressure / Temp | 145 PSI (10 bar) / 36°F to 230°F |
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Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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