Condensate Return Pumps and Boiler Feed Units | Boiler Supplies Sterling Condensate / Boiler Feed Units Sterling 4600 Series Low-Flow, High Capacity Boiler Feed Units
Sterlco® 4600 Series Boiler Feed Units 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 units have just the right accessories and options to meet your unique needs.
Standard Features
• Heavy gauge steel receivers
• Simplex or duplex construction
• Stainless steel fitted centrifugal pumps
• Energy efficient 3450 RPM motors
• Automatic venting
• Carbon ceramic pump seal (300°F)
with EPDM elastomers
• Heavy-duty make-up water valve
• Gauge glass
• Wide range of options and accessories
Optional Features
• Electric alternator for duplex units
• Thermometer
• Isolation valves
• Solenoid operated make-up water
valve with reverse acting float switch
• Special motor construction, such as
totally enclosed, washdown duty and
explosion-proof is available
• Elevated tanks are available
• Complete NEMA 12 Control Panel
| Part # |
Boiler HP |
Pump Type |
Receiver Size |
Motor HP |
Pump Capacity |
Discharge Pressure PSI |
Shipping Weight, lbs. |
||
|---|---|---|---|---|---|---|---|---|---|
|
|
4622-KF | 15 | Simplex | 30 | 1/2 | 3 | 20 | 200 | Add to RFQ |
|
|
4632-KF | 15 | Simplex | 30 | 3/4 | 3 | 30 | 260 | Add to RFQ |
|
|
4642-KF | 15 | Simplex | 30 | 1 | 3 | 40 | 265 | Add to RFQ |
|
|
4652-KF | 15 | Simplex | 30 | 1-1/2 | 3 | 50 | 275 | Add to RFQ |
|
|
4622-KDF | 15 | Duplex | 30 | 1/2 | 3 | 20 | 240 | Add to RFQ |
|
|
4632-KDF | 15 | Duplex | 30 | 3/4 | 3 | 30 | 300 | Add to RFQ |
|
|
4642-KDF | 15 | Duplex | 30 | 1 | 3 | 40 | 310 | Add to RFQ |
|
|
4652-KDF | 15 | Duplex | 30 | 1-1/2 | 3 | 50 | 330 | Add to RFQ |
|
|
4624-KF | 30 | Simplex | 30 | 1/2 | 6 | 20 | 200 | Add to RFQ |
|
|
4634-KF | 30 | Simplex | 30 | 3/4 | 6 | 30 | 260 | Add to RFQ |
|
|
4644-KF | 30 | Simplex | 30 | 1 | 6 | 40 | 265 | Add to RFQ |
|
|
4654-KF | 30 | Simplex | 30 | 1-1/2 | 6 | 50 | 275 | Add to RFQ |
|
|
4624-KDF | 30 | Duplex | 30 | 1/2 | 6 | 20 | 240 | Add to RFQ |
|
|
4634-KDF | 30 | Duplex | 30 | 3/4 | 6 | 30 | 300 | Add to RFQ |
|
|
4644-KDF | 30 | Duplex | 30 | 1 | 6 | 40 | 310 | Add to RFQ |
|
|
4654-KDF | 30 | Duplex | 30 | 1-1/2 | 6 | 50 | 330 | Add to RFQ |
|
|
4626-KF | 45 | Simplex | 45 | 1/2 | 9 | 20 | 240 | Add to RFQ |
|
|
4636-KF | 45 | Simplex | 45 | 3/4 | 9 | 30 | 300 | Add to RFQ |
|
|
4646-KF | 45 | Simplex | 45 | 1-1/2 | 9 | 40 | 305 | Add to RFQ |
|
|
4656-KF | 45 | Simplex | 45 | 1-1/2 | 9 | 50 | 315 | Add to RFQ |
|
|
4626-KDF | 45 | Duplex | 45 | 1/2 | 9 | 20 | 280 | Add to RFQ |
|
|
4636-KDF | 45 | Duplex | 45 | 3/4 | 9 | 30 | 340 | Add to RFQ |
|
|
4646-KDF | 45 | Duplex | 45 | 1-1/2 | 9 | 40 | 350 | Add to RFQ |
|
|
4656-KDF | 45 | Duplex | 45 | 1-1/2 | 9 | 50 | 370 | Add to RFQ |
|
|
4628-KF | 60 | Simplex | 60 | 1/2 | 12 | 20 | 275 | Add to RFQ |
|
|
4638-KF | 60 | Simplex | 60 | 3/4 | 12 | 30 | 335 | Add to RFQ |
|
|
4648-KF | 60 | Simplex | 60 | 1-1/2 | 12 | 40 | 340 | Add to RFQ |
|
|
4658-KF | 60 | Simplex | 60 | 1-1/2 | 12 | 50 | 350 | Add to RFQ |
|
|
4628-KDF | 60 | Duplex | 60 | 1/2 | 12 | 20 | 335 | Add to RFQ |
|
|
4638-KDF | 60 | Duplex | 60 | 3/4 | 12 | 30 | 395 | Add to RFQ |
|
|
4648-KDF | 60 | Duplex | 60 | 1-1/2 | 12 | 40 | 405 | Add to RFQ |
|
|
4658-KDF | 60 | Duplex | 60 | 1-1/2 | 12 | 50 | 425 | Add to RFQ |
|
|
46210-KF | 75 | Simplex | 95 | 1/2 | 15 | 20 | 360 | Add to RFQ |
|
|
46310-KF | 75 | Simplex | 95 | 1 | 15 | 30 | 420 | Add to RFQ |
|
|
46410-KF | 75 | Simplex | 95 | 1-1/2 | 15 | 40 | 425 | Add to RFQ |
|
|
46510-KF | 75 | Simplex | 95 | 2 | 15 | 50 | 435 | Add to RFQ |
|
|
46210-KDF | 75 | Duplex | 95 | 1/2 | 15 | 20 | 420 | Add to RFQ |
|
|
46310-KDF | 75 | Duplex | 95 | 1 | 15 | 30 | 480 | Add to RFQ |
|
|
46410-KDF | 75 | Duplex | 95 | 1-1/2 | 15 | 40 | 490 | Add to RFQ |
|
|
46510-KDF | 75 | Duplex | 95 | 2 | 15 | 50 | 510 | Add to RFQ |
|
|
46215-KF | 100 | Simplex | 95 | 1/2 | 20 | 20 | 360 | Add to RFQ |
|
|
46315-KF | 100 | Simplex | 95 | 1 | 20 | 30 | 420 | Add to RFQ |
|
|
46415-KF | 100 | Simplex | 95 | 1-1/2 | 20 | 40 | 425 | Add to RFQ |
|
|
46515-KF | 100 | Simplex | 95 | 2 | 20 | 50 | 435 | Add to RFQ |
|
|
46215-KDF | 100 | Duplex | 95 | 1/2 | 20 | 20 | 420 | Add to RFQ |
|
|
46315-KDF | 100 | Duplex | 95 | 1 | 20 | 30 | 480 | Add to RFQ |
|
|
46415-KDF | 100 | Duplex | 95 | 1-1/2 | 20 | 40 | 490 | Add to RFQ |
|
|
46515-KDF | 100 | Duplex | 95 | 2 | 20 | 50 | 510 | Add to RFQ |
|
|
46220-KF | 150 | Simplex | 120 | 3/4 | 30 | 20 | 415 | Add to RFQ |
|
|
46320-KF | 150 | Simplex | 120 | 1 | 30 | 30 | 475 | Add to RFQ |
|
|
46420-KF | 150 | Simplex | 120 | 1-1/2 | 30 | 40 | 480 | Add to RFQ |
|
|
46520-KF | 150 | Simplex | 120 | 3 | 30 | 50 | 490 | Add to RFQ |
|
|
46220-KDF | 150 | Duplex | 120 | 3/4 | 30 | 20 | 475 | Add to RFQ |
|
|
46320-KDF | 150 | Duplex | 120 | 1 | 30 | 30 | 535 | Add to RFQ |
|
|
46420-KDF | 150 | Duplex | 120 | 1-1/2 | 30 | 40 | 545 | Add to RFQ |
|
|
46520-KDF | 150 | Duplex | 120 | 3 | 30 | 50 | 565 | Add to RFQ |
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