• Motors : Heavy-duty, ball bearing, close-coupled pump motors with stainless steel shaft. 3450 RPM for greater efficiency and more economical operation.
• Float Switch : Two-pole, drip proof case, stainless steel float and float rod, double-break silver-to-silver contacts. Float travel adjustment is easy, visible and accessible.
• Automatic Venting : Provides for efficient operation and long life by venting air and flushing seal area.
• Large Tanks : Plenty of capacity for maximum rating of pump. Return inlet is low. Occupies a minimum of floor space.
• Centrifugal Pump : Offers a wide range of pressures and GPM. Unique design features provide for ease of servicing.
• Impeller : Made of brass for long life. Efficient design provides maximum capacity, minimum motor load.
• “SterlSeal” Pump Seal (A) : Features the ultimate in ceramic technology for exceptionally long life. Because the seal runs on the bronze impeller hub, the motor shaft is literally outside the pump. Consequently, the shaft is not exposed to corrosion by condensate. Rated for temperatures up to 250°F.
• Isolation Valve (B) : Optional on 4100 Series Condensate Pumps Sterlco® Condensate Return Pumps set new standards of performance. Reliable and efficient, each unit features heavy gauge, 3/16′′ steel receivers for long operating life. In addition, 3450 RPM motors assure maximum efficiency while maintaining minimum motor horsepower. Available in a wide range of sizes, these U.S. made pumps have just the right accessories and options to meet your unique needs.

• Motors : Heavy-duty, ball bearing, close-coupled pump motors with stainless steel shaft. 3450 RPM for greater efficiency and more economical operation.
• Float Switch : Two-pole, drip proof case, stainless steel float and float rod, double-break silver-to-silver contacts. Float travel adjustment is easy, visible and accessible.
• Automatic Venting : Provides for efficient operation and long life by venting air and flushing seal area.
• Large Tanks : Plenty of capacity for maximum rating of pump. Return inlet is low. Occupies a minimum of floor space.
• Centrifugal Pump: Offers a wide range of pressures and GPM. Unique design features provide for ease of servicing.
• Impeller: Made of brass for long life. Efficient design provides maximum capacity, minimum motor load.
• “SterlSeal” Pump Seal (A) : Features the ultimate in ceramic technology for exceptionally long life. Because the seal runs on the bronze impeller hub, the motor shaft is literally outside the pump. Consequently, the shaft is not exposed to corrosion by condensate. Rated for temperatures up to 250°F.
• Isolation Valve (B) : Optional on 4200 Series Condensate Pumps

Sterlco® Condensate Return Pumps set new standards of performance. Reliable and efficient, each unit features heavy-duty cast iron receivers for long operating life. In addition, 3450 RPM motors assure maximum efficiency while maintaining minimum motor horsepower. Available in a wide range of sizes, these U.S. made pumps have just the right accessories and options to meet your unique needs.