Bell & Gossett

Bell & Gossett was founded in Chicago in 1916 by W.C. Bell and E.J. Gossett. First booster pump: 1930. Primary/secondary pumping concept invented by B&G engineer Gilbert Carlson: 1953. Acquired by ITT Corporation: 1963. Became part of Xylem Inc. following ITT restructuring: 2011. Distributed through HVAC and plumbing wholesale channels in North America and internationally.

Product Lines

• Series 100 Circulator: Industry-standard residential/light commercial hydronic circulator; 1-3 HP; three-piece booster pump design
• e-80 In-Line Circulator: 2.5-3 inch connections; 175 PSI working pressure; horizontal or vertical mount
• e-90 In-Line Circulator: 1-3 inch connections; 175 PSI; residential and light commercial
• e-1510 Series: Variable displacement; 1-10 HP; 1,750 RPM; 175 PSI; commercial hydronic loops
• IAS-1 Air Separator: 1-inch NPT; 15 GPM max; 175 PSIG; 300 degrees F max; cast iron weir design
• EAS Enhanced Air Separators: 1, 1.5, 2-inch models; 35-70 GPM; 125 PSI; 250 degrees F max; micro-bubble removal
• Brazed plate heat exchangers, circuit setters, balancing valves, system specialty hydronic equipment

Why Contractors Specify Bell & Gossett

• Series 100: most widely installed residential hydronic circulator in North America; 20-plus year service life in maintained systems
• Inventors of primary/secondary pumping (1953): technical authority in complex multi-zone hydronic design
• ISO 9001-certified e-Series manufacturing: consistent quality across production runs
• Complete air separator line addresses entrained-air complaints (noise, cold zones, reduced output)
• Xylem brand: global manufacturing resources and broad HVAC wholesale distribution network

How to Choose Bell & Gossett Products

Residential/light commercial (1-3 inch, 175 PSI): Series 100 or e-90. Commercial loops (1-10 HP, variable flow): e-1510. Domestic water boosting (125 PSI): Series PD. Air separator: IAS-1 for under 15 GPM; EAS 1/1.5/2-inch for 35/50/70 GPM; CRS for over 250 degrees F systems (rated to 450 degrees F).

Frequently Asked Questions

• Founded/owned? 1916 Chicago; ITT 1963; Xylem Inc. 2011.
• Primary/secondary pumping? Invented by B&G engineer Gilbert Carlson in 1953. Dedicated boiler loop pump (primary) plus independent zone pumps (secondary) for independent pressure/flow per circuit. Industry standard for multi-zone hydronic design.
• Working pressure? e-80, e-90, e-1510: 175 PSI max. Series PD: 125 PSI max.
• IAS-1 vs EAS? IAS-1: 1 inch NPT, 15 GPM max, 175 PSIG, 300 degrees F. EAS: 35-70 GPM (1/1.5/2 inch), 125 PSI, 250 degrees F, superior micro-bubble removal. Select by system flow rate.
• Series 100 lifespan? 20-plus years in properly maintained systems. Rebuild kits available for seal and bearing replacement.