Description
The Watson McDaniel W4128G Electric Condensate Pumps are used for returning condensate from the facility back to the boiler room. In Condensate Return applications, the operation of the pump is controlled by a Float Switch located on the receiver tank. The pump turns on when the receiver tank is full and shuts off when emptied. Duplex units contain a Mechanical Alternator float switch to alternate operation between the two pumps.
The float, which is connected to the switch assembly, rises when condensate enters the receiver tank. When the float rises above its set point, it energizes the motor on the pump. Once started, the pump will continue to run until the water level drops below the bottom position of the float switch. There it will de-energize the motor to shut off the pump. This cycle repeats as condensate begins to fill the receiver tank. On duplex systems the float switch is replaced with a Mechanical Alternator-Switch connected to a float. The Mechanical Alternator cycles use between the two pumps, allowing only one pump to run at a time under normal conditions. If the condensate reaches a high water level, both pumps will be activated.
W4128G Series Features:
- Fabricated steel receivers (W4100), Cast Iron (W4200), Stainless Steel (W4300)
- Simplex and duplex packages
- Bronze-fitted centrifugal pumps
- Energy-efficient 3450 RPM motors
- Automatic venting of mechanical seal
- Ceramic pump seal with carbon face
- Heavy-duty float switch
- All steel and iron receivers over 24 gallons include a threaded NPT overflow port
W4128G Specifications:
| Discharge Pressure (psig) | 20 |
| Motor (HP) | 1/3 |
| Flow Rate (GPM) | 12 |
| Receiver Capacity (Gallons) | 15 |
| System | Simplex System |
| Weight (lbs) | 125 |
Watson McDaniel Boiler Feed Pump Options:
- Mechanical and Electrical Alternators
- Gauge Glass
- Thermometers
- Discharge Pressure Gauges
- Isolation valves
- Magnetic Starters with HOA Selector Switch
- 1750 RPM Motors
- Larger pumping capacities & higher discharge pressures
- Wide variety of control panels
- Oversized Receivers (45, 60 & 95 gallons)
- Stainless Steel Receivers
- High Temperature (250°F) Components
Condensate Pump Installation & Manual:
Place on an elevated, level and substantial foundation in a clean, dry and accessible area. Locate receiver tank inlet below lowest point of the condensate return lines.
Specification PDF’s:
Watson McDaniel Pressure Condensate Electric Pump Specifications
Watson McDaniel Pressure Condensate Electric Pump Installation Manual
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