Product Overview
Meet the Bell & Gossett e-60 AB 2 x 5.25, a benchmark for reliability and efficiency in commercial hydronic circulation. This rugged 3/4 HP inline circulator is engineered to move water and glycol solutions quietly and efficiently in mid-sized commercial buildings, including schools, office complexes, and multi-family residences. Its robust design ensures years of trouble-free service, reducing lifecycle costs and enhancing system reliability.
At the core of this pump is a high-efficiency, wet-rotor design that minimizes energy consumption without sacrificing performance. The pump features a durable cast iron casing and a bronze impeller, built to withstand the demands of continuous operation in closed-loop heating and cooling systems. For engineers designing a new system or replacing an aging unit, our blog on [Selecting the Right Circulator Pump for Commercial HVAC Systems] provides essential guidance. With flexible 3-speed settings, the e-60 allows for precise performance tuning to match your system’s specific flow and head requirements, ensuring optimal efficiency.
As part of the legendary Bell & Gossett brand, known for setting industry standards since 1916, this pump comes with the technical support and product longevity you can count on. It’s more than a component; it’s an investment in the quiet, efficient heartbeat of your building’s hydronic system. Discover the history of this reliability in our article on [The Legacy of Bell & Gossett in Hydronic Systems].
Technical Specifications
| Specification | Details |
|---|---|
| Model | Bell & Gossett e-60 AB 2 x 5.25 (1EF003LF) |
| Motor Power | 3/4 HP (0.56 kW) |
| Connection Size | 2″ Flange x 2″ Flange |
| Impeller Material | Bronze |
| Housing Material | Cast Iron |
| Max Head | 52 ft (15.8 m) |
| Max Flow | 180 US gpm (680 L/min) |
| Speed Settings | 3-Speed (Manual) |
| Max Operating Pressure | 175 psi (12 bar) |
| Max Fluid Temperature | 230°F (110°C) |
| Voltage | 115/208-230V, 1-Phase |
| NPSH Required | 3.3 ft (1.0 m) |
Comparison Table: B&G e-60 vs. Alternative Pumps
| Feature | Bell & Gossett e-60 3/4 HP | Competitor A (Standard Circulator) | Competitor B (Base-Mounted Pump) |
|---|---|---|---|
| Design & Form Factor | Inline, Compact | Inline | Base-Mounted, Larger Footprint |
| Energy Efficiency | High (Wet-Rotor ECM) | Standard | Varies |
| Installation & Maintenance | Direct Inline Mounting | Direct Inline Mounting | Requires Coupling Alignment |
| Speed Control | 3-Speed Manual | Often Single-Speed | Often Single-Speed |
| Material Durability | Cast Iron/Bronze | May use composite materials | Cast Iron/Bronze |
| Ideal Application | Mid-Size Commercial HVAC | Light Commercial/Residential | Large Commercial/Industrial |
Frequently Asked Questions (FAQs)
Q1: Is this pump suitable for both heating and chilled water applications?
Yes, the B&G e-60 is designed for closed-loop hydronic systems, making it an excellent choice for both hot water heating and chilled water cooling applications within its specified temperature and pressure ratings. For systems with specific requirements, see our guide on [Glycol vs. Water in Hydronic Systems].
Q2: What is the advantage of a 3-speed pump?
The 3-speed capability allows you to fine-tune the pump’s performance after installation. If the system flow is too high or too low, you can simply adjust the speed setting to achieve optimal performance without needing to replace the pump or impeller, saving time and cost.
Q3: Can this pump be used in a system with antifreeze?
Yes, it can handle glycol solutions commonly used for freeze protection. However, note that glycol solutions increase the fluid viscosity, which will reduce the pump’s flow and head capacity. Performance corrections must be applied; consult the engineering manual for details.
Q4: How does this inline circulator compare to a base-mounted pump?
Inline circulators like the e-60 are designed for direct installation into the piping, saving space and eliminating the need for a separate baseplate, coupling, and guard. They are generally easier and faster to install than traditional base-mounted pumps. For larger applications, explore our [Bell & Gossett Series 1510 Base-Mounted Pumps].
Q5: What maintenance does this circulator require?
The wet-rotor design is lubricated and cooled by the system fluid, eliminating the need for external lubrication. The primary maintenance involves ensuring the system is clean to prevent seal damage and occasionally checking for unusual noises or vibrations. For a comprehensive overview, read our blog on [Preventative Maintenance for Commercial Circulator Pumps].
Pros and Cons
| Pros | Cons |
|---|---|
| High Energy Efficiency reduces operating costs | Not Self-Priming – must be installed in a flooded suction |
| Compact Inline Design saves space and simplifies piping | Manual Speed Setting requires physical adjustment at the pump |
| Quiet Operation due to wet-rotor technology | Cast Iron Construction is heavy, requiring proper pipe support |
| Durable Construction with cast iron and bronze for long life | Specific Voltage requires correct electrical supply (115/208-230V) |
| 3-Speed Flexibility allows for field adjustment to match system curve | Not for all fluids – not suitable for potable water or highly abrasive fluids |
Conclusion & Ideal Use Cases
The Bell & Gossett e-60 AB 2 x 5.25 3/4 HP circulator is a versatile and reliable workhorse engineered for commercial hydronic systems where efficiency, durability, and compact design are paramount. It represents the ideal blend of B&G’s proven hydraulic expertise and modern, energy-conscious design.
This pump is the perfect solution for:
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Commercial HVAC Systems: Circulating heating and cooling water in office buildings, schools, and apartments.
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Zone Circulation: Serving as a secondary loop pump in larger hydronic systems.
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Industrial Process Cooling: Closed-loop cooling for machinery and process equipment.
For smaller applications, consider a [Bell & Gossett NRF-22 Inline Circulator], while for larger flow requirements, the [Bell & Gossett Series 80 Inline Pump] may be more appropriate. The e-60 fills a critical niche for mid-range duties. For authoritative technical data on pump efficiency and standards, consult the Hydraulic Institute’s standards for circulator pumps (External Link). By choosing this pump, you are selecting a component backed by a century of innovation, designed to deliver performance you can trust for the long term.
Contact our technical specialists today for assistance in specifying this pump for your project or to discuss your specific system requirements.
