Bell & Gossett 1EF159LF Be651S-ECM AB Series e-60 Pump 1/2 HP
Supplying constant proportional pressure, the Bell & Gossett 1EF159LF utilizes a smart auto-sensing 1/2 HP ECM motor to circulate lead-free potable water through standard 1.25-inch flanged connections.
- 0.5 HP motor minimizes energy bills
- Auto-sensing voltage matches varied building grids
- 5.25 inch impeller builds system head
- 1.25 inch flange simplifies line installation
- ECM drive slashes facility utility bills
Description
Verify potable-water compatibility with Bell & Gossett 1EF159LF Be651S-ECM, a 1/2 HP all-bronze ECM pump listed for a 1.25-inch flanged configuration. The supplied listing describes 115/208–230 V auto-sensing operation and a 5.25-inch impeller, but the manufacturer reference identifies Be651S-ECM with different voltage and motor details. Confirm the exact electrical and flange configuration before purchase.
The electronically controlled motor is intended for constant or proportional-pressure operation in variable-flow potable-water systems. The supplied data identifies all-bronze construction and a full-diameter impeller, but flow, head, amp draw, seal material, dimensions, weight, and verified control range were not provided. Match the pump to the current manufacturer submittal, system curve, and field wiring.
Key Features & Benefits
- 1/2 HP ECM Motor: Supports variable-flow potable-water and commercial DHW circulation.
- 1.25-Inch Flanged Size: Provides the listed connection reference for compatible piping.
- All-Bronze Construction: Supplies the stated wetted material for potable-water service.
- Full-Diameter Bronze Impeller: Identifies the listed rotating component for replacement matching.
- Constant or Proportional Pressure: Supports different control strategies when the configuration is correctly verified.
- Voltage Verification Required: Helps prevent a mismatch between supplied listing data and manufacturer references.
- Series e-60 ECM: Provides a defined product family for high-efficiency DHW circulation.
- Single-Phase Operation: Supports compatible commercial service after voltage confirmation.
Why Choose Bell & Gossett 1EF159LF Be651S-ECM
The Be651S-ECM offers ECM control and all-bronze construction for potable-water circulation, but the listed voltage and configuration require confirmation before installation.
- Build: All-bronze body, ECM motor, 1.25-inch flange, and full-diameter impeller define the supplied arrangement.
- Value: Electronic pressure control can help match circulation to changing demand after proper configuration verification.
- Audience: Suited to plumbing contractors, hotel engineers, hospital maintenance teams, and commercial DHW specialists.
Applications & Use Cases
Use Bell & Gossett 1EF159LF Be651S-ECM for variable-speed potable-water circulation and high-efficiency domestic hot-water loops after confirming the electrical data. The supplied information identifies a 1.25-inch flanged configuration but does not provide dimensions, weight, or port reach, so verify flange spacing, control access, valve clearance, and service space before installation.
Warranty & Support
- 1-Year Limited Warranty: ECM option coverage should be confirmed against the current manufacturer warranty terms.
- Request written confirmation of SKU 1EF159LF, model Be651S-ECM, voltage, horsepower, flange size, impeller, and control range before ordering.
Flush the potable-water loop, purge air, verify the field voltage, and confirm the control mode before startup. Inspect the seal area, monitor circulation and temperature, and check for vibration or leakage during commissioning. Purchase the Bell & Gossett 1EF159LF Be651S-ECM Series e-60 all-bronze potable-water pump through Mulmotor.com for authentic equipment, 1-Year Limited Warranty coverage, and model-verification assistance.
Bell & Gossett 1EF159LF Series e-60 Model Be651S-ECM (1/2 HP) Specs
| Technical Parameter | Official Specification (Verified) |
|---|---|
| Brand & Model | Series e-60 All-Bronze ECM (Be651S) |
| SKU / Part Number | 1EF159LF |
| Horsepower (HP) | 1/2 HP (ECM) |
| Electrical Phase | Single-Phase (1-PH) |
| Voltage Configuration | 115 / 208–230 V (Auto-Sensing) |
| Body Material | Bronze (All-Bronze / AB) |
| Pump Size | 1.25 x 1.25 x 5.25 (1.25" Flanged) |
| Impeller Diameter | 5.25" (Full Diameter) |
| Control Feature | Integrated Drive for Constant/Proportional Pressure |












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