Goulds 5BF1N9A0 - Model 3656S Centrifugal Pump, 20 HP, Three-Phase, 60Hz, 230-460V, TEPE, 8.06" Impeller
Goulds 5BF1N9A0 - Model 3656S Centrifugal Pump, 20 HP, Three-Phase, 60Hz, 230-460V, TEPE, 8.06" Impeller
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Commercial Ordering FAQ
How do I verify that Goulds 5BF1N9A0 - Model 3656S Centrifugal Pump, 20 HP, Three-Phase, 60Hz, 230-460V, TEPE, 8.06" Impeller is the correct replacement part for my equipment?
Check the OEM part number (5BF1N9A0) against your equipment nameplate or the manufacturer's repair parts list before ordering. If you are not sure, call the National Boiler Supply order desk at 850-565-3492 and we can cross-reference your equipment model and serial numbers before the order ships.
What are the shipping and freight options for Goulds orders?
Standard parcel orders ship quickly from commercial distribution centers. Shipping is a $35 flat rate on orders under $999, and qualifying orders of $999 or more ship free by ground. Heavy equipment that has to move by LTL freight is quoted after the order is placed and confirmed with you before dispatch.
Can contractors or facility managers request a formal quote or use a Purchase Order (PO)?
Yes. National Boiler Supply works with commercial contractors, mechanical engineers, municipalities, and facility teams. Call 850-565-3492 for a formal quote, bulk pricing, or PO and tax-exempt order processing.
What if this Goulds part is marked Call to Order or needed for an emergency repair?
Call our order desk at 850-565-3492. We can confirm factory lead times right away and arrange expedited air or hot-shot delivery when a repair cannot wait.
This high-performance centrifugal pump is engineered for demanding industrial and commercial fluid transfer applications. The 5BF1N9A0, part of the robust Goulds Model 3656S series, delivers consistent pressure and high-flow capacity to ensure your hydronic or processing system maintains peak operational integrity.
Built for durability and ease of maintenance, the unit utilizes a TEPE enclosure and precision-engineered 8.06-inch impeller to maximize hydraulic efficiency while minimizing vibration and mechanical wear. Its modular design allows for back-pull-out maintenance, enabling you to service internal components without disturbing the piping system.
Key System Performance Baselines:
- Motor Power: 20HP output for high-demand circulation.
- Electrical Specs: 3-phase, 60Hz configuration for 230/460V power grids.
- Impeller Size: 8.06-inch diameter for precise flow head pressure.
- Construction: TEPE enclosed design for enhanced motor protection in harsh environments.
ā ļø Application Profile: Ideal for industrial process cooling, pressure boosting, water circulation systems, and commercial HVAC hydronic loops requiring reliable, continuous-duty pumping solutions.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 5BF1N9A0 |
| Model Designation | Goulds 3656S |
| Horsepower | 20HP |
| Electrical Rating | 3/60/230-460 |
| Impeller Diameter | 8.06" |
| Enclosure Type | TEPE |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms āš Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
š Request a Commercial Quote or contact our procurement team for direct freight scheduling.