Condensate Return Pumps and Boiler Feed Units | Boiler Supplies Sterling Condensate / Boiler Feed Units Sterling 4600 Elevated 2' NPSH Condensate Unit
The 4600 Series features heavy-duty 3/16" steel receivers and 3450 RPM motors for efficient, reliable operation with minimal horsepower. Built in the U.S., these elevated condensate units are available in multiple sizes with a variety of accessories and options to fit system requirements.
Standard Features
Heavy-gauge steel receivers (simplex or duplex)
Stainless steel fitted centrifugal pumps
3450 RPM energy-efficient motors
Automatic venting
Carbon ceramic pump seal (300°F) with EPDM elastomers
Heavy-duty make-up water valve & gauge glass
Wide range of accessories
Optional Features
Electric alternator (duplex)
Thermometer, isolation valves
Solenoid make-up valve with reverse acting float switch
Special motor construction (TEFC, washdown, explosion-proof)
Elevated tanks
NEMA 12 control panel
| Part # |
Pump Capacity GPM |
Pump Type |
Receiver Size |
Motor HP |
Discharge PSI |
|
|---|---|---|---|---|---|---|
| 4622-KF | 3 | Simplex | 30 | 1/2 | 20 | Add to RFQ |
| 4632-KF | 3 | Simplex | 30 | 3/4 | 30 | Add to RFQ |
| 4642-KF | 3 | Simplex | 30 | 1 | 40 | Add to RFQ |
| 4652-KF | 3 | Simplex | 30 | 1-1/2 | 50 | Add to RFQ |
| 4622-KDF | 3 | Duplex | 30 | 1/2 | 20 | Add to RFQ |
| 4632-KDF | 3 | Duplex | 30 | 3/4 | 30 | Add to RFQ |
| 4642-KDF | 3 | Duplex | 30 | 1 | 40 | Add to RFQ |
| 4652-KDF | 3 | Duplex | 30 | 1-1/2 | 50 | Add to RFQ |
| 4624-KF | 6 | Simplex | 30 | 1/2 | 20 | Add to RFQ |
| 4634-KF | 6 | Simplex | 30 | 3/4 | 30 | Add to RFQ |
| 4644-KF | 6 | Simplex | 30 | 1 | 40 | Add to RFQ |
| 4654-KF | 6 | Simplex | 30 | 1-1/2 | 50 | Add to RFQ |
| 4624-KDF | 6 | Duplex | 30 | 1/2 | 20 | Add to RFQ |
| 4634-KDF | 6 | Duplex | 30 | 3/4 | 30 | Add to RFQ |
| 4644-KDF | 6 | Duplex | 30 | 1 | 40 | Add to RFQ |
| 4654-KDF | 6 | Duplex | 30 | 1-1/2 | 50 | Add to RFQ |
| 4626-KF | 9 | Simplex | 45 | 1/2 | 20 | Add to RFQ |
| 4636-KF | 9 | Simplex | 45 | 3/4 | 30 | Add to RFQ |
| 4646-KF | 9 | Simplex | 45 | 1-1/2 | 40 | Add to RFQ |
| 4656-KF | 9 | Simplex | 45 | 1-1/2 | 50 | Add to RFQ |
| 4626-KDF | 9 | Duplex | 45 | 1/2 | 20 | Add to RFQ |
| 4636-KDF | 9 | Duplex | 45 | 3/4 | 30 | Add to RFQ |
| 4646-KDF | 9 | Duplex | 45 | 1-1/2 | 40 | Add to RFQ |
| 4656-KDF | 9 | Duplex | 45 | 1-1/2 | 50 | Add to RFQ |
| 4628-KF | 12 | Simplex | 60 | 1/2 | 20 | Add to RFQ |
| 4638-KF | 12 | Simplex | 60 | 3/4 | 30 | Add to RFQ |
| 4648-KF | 12 | Simplex | 60 | 1-1/2 | 40 | Add to RFQ |
| 4658-KF | 12 | Simplex | 60 | 1-1/2 | 50 | Add to RFQ |
| 4628-KDF | 12 | Duplex | 60 | 1/2 | 20 | Add to RFQ |
| 4638-KDF | 12 | Duplex | 60 | 3/4 | 30 | Add to RFQ |
| 4648-KDF | 12 | Duplex | 60 | 1-1/2 | 40 | Add to RFQ |
| 4658-KDF | 12 | Duplex | 60 | 1-1/2 | 50 | Add to RFQ |
| 46210-KF | 15 | Simplex | 95 | 1/2 | 20 | Add to RFQ |
| 46310-KF | 15 | Simplex | 95 | 1 | 30 | Add to RFQ |
| 46410-KF | 15 | Simplex | 95 | 1-1/2 | 40 | Add to RFQ |
| 46510-KF | 15 | Simplex | 95 | 2 | 50 | Add to RFQ |
| 46210-KDF | 15 | Duplex | 95 | 1/2 | 20 | Add to RFQ |
| 46310-KDF | 15 | Duplex | 95 | 1 | 30 | Add to RFQ |
| 46410-KDF | 15 | Duplex | 95 | 1-1/2 | 40 | Add to RFQ |
| 46510-KDF | 15 | Duplex | 95 | 2 | 50 | Add to RFQ |
| 46215-KF | 20 | Simplex | 95 | 1/2 | 20 | Add to RFQ |
| 46315-KF | 20 | Simplex | 95 | 1 | 30 | Add to RFQ |
| 46415-KF | 20 | Simplex | 95 | 1-1/2 | 40 | Add to RFQ |
| 46515-KF | 20 | Simplex | 95 | 2 | 50 | Add to RFQ |
| 46215-KDF | 20 | Duplex | 95 | 1/2 | 20 | Add to RFQ |
| 46315-KDF | 20 | Duplex | 95 | 1 | 30 | Add to RFQ |
| 46415-KDF | 20 | Duplex | 95 | 1-1/2 | 40 | Add to RFQ |
| 46515-KDF | 20 | Duplex | 95 | 2 | 50 | Add to RFQ |
| 46220-KF | 30 | Simplex | 120 | 3/4 | 20 | Add to RFQ |
| 46320-KF | 30 | Simplex | 120 | 1 | 30 | Add to RFQ |
| 46420-KF | 30 | Simplex | 120 | 1-1/2 | 40 | Add to RFQ |
| 46520-KF | 30 | Simplex | 120 | 3 | 50 | Add to RFQ |
| 46220-KDF | 30 | Duplex | 120 | 3/4 | 20 | Add to RFQ |
| 46320-KDF | 30 | Duplex | 120 | 1 | 30 | Add to RFQ |
| 46420-KDF | 30 | Duplex | 120 | 1-1/2 | 40 | Add to RFQ |
| 46520-KDF | 30 | Duplex | 120 | 3 | 50 | Add to RFQ |
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