Features and Benefits
All Pumps Deliver the Required Capacity at 210° F:
Guaranteed pump performance.
All Pumps Have Mechanical Seals (Standard):
Reduces maintenance when compared to packing type seals.
Specifically Designed for Compatibility With Cleaver-Brooks Boilers:
Quick, accurate equipment selection,
single source responsibility,
Provides Additional Storage Time and Handles Volume-Swings in Condensate Return:
Feedwater tank collects intermittent condensate returns and supplies water at a relative constant volume,
minimizes problem from unpredictable condensate flow rates.
Boosts Condensate Return Pressure:
Acts as a collecting point for low pressure and gravity returns,
allows the introduction of returns to a high pressure vessel.
Accepts Gravity Returns:
Vessels are vented to atmosphere, providing no pressure resistance that would inhibit gravity return.
Internal Pump Suction Vortex Breakers:
Eliminates the problems of loss in NPSHA (Net Positive Suction Head Available) and cavitation associated with the creation of vortices within pump suction piping.
Information in this section applies directly to Cleaver-Brooks Feed Systems for low and high pressure (15 - 300 psig) boilers (15 - 800 horsepower). Selection of Boiler Feed Systems is based on boiler size, pump requirements (flow, pressure, hp), and water storage requirements (tank size). Contact your local Cleaver-Brooks authorized representative for detailed component sizing information.
When equipped with an automatic steam preheater, feedwater temperature can be maintained at 210 °F . At this higher temperature, oxygen and carbon dioxide are released, reducing corrosion problems in the boiler. Pre-heating is recommended if return condensate constitutes 50% or less of the feedwater required.
Cleaver-Brooks Packaged Feedwater Systems include pumps, control panel with magnetic starters, and necessary switches. Systems are available in simplex, duplex, dual and triplex arrangements. Custom arrangements are also available. Accessories include high temperature diffuser tube, automatic preheater, make-up valves, electrolytic corrosion inhibitor, and ASME tanks. Contact your local Cleaver-Brooks authorized representative for information on alternate Cleaver-Brooks Pump Feed Systems.
Simplex units include one pump set complete with open dripproof motor on steel channel base with flexible coupling between pump and motor, one large receiver mounted on structural steel stand, complete with make-up valve, gauge glass with shutoff valves, thermometer, and suction piping from receiver to pump with Y-type strainer, flexible hose and gate valve.
Duplex units are similar to simplex units, but with two pumps and one receiver. Magnetic starters (where required) are mounted in a NEMA I enclosure, with manual transfer switch for standby pump.
Dual units are similar to duplex units, except that receiver tank is sized for two boiler operation. Transfer switch is not required.
Triplex units are similar to Dual units but with three pumps and one receiver.
|Standard Equipment||Optional Equipment|
- Boiler feed pump and motor
- Magnetic starter
- Suction shutoff valve
- Suction strainer
- Suction flexible fittings
- Gauge glass
- Internal float make-up valve
- Required tappings
- Preheating systems
- High temperature diffuser tube
- External float make-up valve
- Electric alternator
- Special electrical requirements
- ASME Code tank
- Discharge pressure gauge
- Magnesium anode