Sterling Condensate / Boiler Feed Units

Sterling 4028G/4128G Simplex Carbon Steel Condensate Unit

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Sterling 4100 G-Series Condensate Pump & Motor (With Volute)

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Sterling 4100 G-Series Condensate Pump & Motor (Less Volute)

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Sterling Condensate Pumps 4100 J-Series

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Sterling 4100 Series Carbon Steel Condensate Return

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Sterling 4100 Series Carbon Steel Boiler Feed Units

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Sterling 4200 Series Cast Iron Condensate Return

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Sterling 4600 Elevated 2' NPSH Condensate Unit

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Sterling 4600 Series Low-Flow, High Capacity Boiler Feed Units

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Sterling 4000 K Series 2' NPSH Pump

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Sterling 3500 Series Boiler Feed Units

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Sterling 5000 Series Boiler Feed Units

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Additional Information

Sterling Sterlco® condensate return and boiler feed units feature heavy-duty 3/16" steel receivers for long service life and reliable performance. Available in a wide range of sizes, these U.S.-made units are designed for efficiency and easy maintenance.

Equipped with 3450 RPM close-coupled motors with stainless steel shafts, they deliver efficient operation with reduced horsepower requirements. Bronze-fitted centrifugal pumps offer a wide range of pressures and GPM, with the “Sterl-Seal” ceramic seal designed for extended life and protection against corrosion.

Units include durable float switches with stainless steel components and easy adjustment, along with automatic venting. Available in simplex or duplex configurations, with dependable performance up to 250°F.