Bell & Gossett Pumps: A Buyer's Guide to the Product Line

Bell & Gossett has been a defining name in hydronic systems for over a century — if you've ever heard a mechanical contractor say "circuit setter" as a generic term for a balancing valve, that's Bell & Gossett's own trademark having become the industry-standard word for the whole product category. Their pump and system component lines are a fixture in commercial hydronic design specs, and for good reason: broad coverage across residential-scale to large commercial applications, well-documented performance curves, and parts availability that makes long-term maintenance straightforward.

The Core Pump Lines

• Series 60 / e-60 — the classic close-coupled, three-piece in-line centrifugal pump. This is the baseline commercial circulator most contractors picture when they think "B&G pump" — reliable, well-documented, and available across a wide range of horsepower and connection sizes.
• Series e-90 — a step up in capacity from the e-60 line, covering larger flow and head requirements in the same close-coupled in-line format, available in bronze-fitted (BF) configurations for systems where that construction is specified.
• Series e-1510 — base-mounted, end-suction centrifugal pumps for applications that exceed what an in-line pump can handle — larger commercial and institutional systems where the pump sits on its own mounting base rather than directly in the pipeline.
• PL Series booster pumps — compact, maintenance-free in-line booster pumps for pressure-boosting applications, sized from fractional horsepower up.

The Smart/Efficiency Line: Ecocirc

Bell & Gossett's ecocirc, ecocirc+, and ecocirc XL lines bring variable-speed ECM (electronically commutated motor) technology to circulator selection — these units automatically adjust speed to match actual system demand rather than running at a fixed speed continuously, meaningfully cutting electrical consumption compared to a traditional single- or multi-speed circulator. The XL line extends this technology up into genuinely commercial-scale flow and head ranges, not just residential and light-commercial applications, making variable-speed efficiency an option even for larger systems.

System Components That Complete a B&G Installation

• Suction Diffuser — installed on a pump's suction side, this combines a strainer, flow-straightening vanes, and a start-up strainer in one fitting, protecting the pump from debris while conditioning flow into the impeller for quieter, more efficient operation.
• Triple Duty Valve — combines a shutoff valve, a non-slam check valve, and a calibrated balancing valve in one fitting, installed on the pump discharge side. As the name implies, it replaces three separate components with one, simplifying both the installation and the piping layout around the pump.
• Checktrol Flange Sets — isolation flanges with an integrated spring check valve, letting a circulator be isolated for service without draining the system while also preventing backflow through an idle pump.

Together, a suction diffuser, triple duty valve, and the pump itself form the standard B&G "pump package" pattern seen throughout commercial hydronic system designs — and it's worth specifying all three from a consistent source to keep connection sizing and pressure ratings properly matched.

Choosing Between the Lines

For a standard commercial zone circulator, the Series 60/e-60 or e-90 lines cover most applications. For larger systems needing more flow and head than an in-line pump can deliver, step up to the e-1510 base-mounted line. Where energy efficiency and matching variable demand matter most, the ecocirc line trades a higher upfront cost for meaningfully lower ongoing electrical consumption. Booster pump applications — domestic water pressure boosting rather than closed-loop circulation — point to the PL series specifically.

Bottom Line

Bell & Gossett's product line spans the full range a mechanical contractor or facility team is likely to need across a hydronic system's pump and balancing components, with the kind of parts longevity and documentation that makes specifying and maintaining a B&G-based system straightforward years down the line.

National Boiler Supply carries the full Bell & Gossett line — Series 60/e-90 in-line pumps, e-1510 base-mounted pumps, the ecocirc variable-speed line, PL series booster pumps, and system components including suction diffusers, triple duty valves, and Circuit Setter balancing valves. Reach out with your system's flow and head requirements and we'll help you select the right pump and components.