McDonnell & Miller 47-2 Water Feeder With Cut-Off 132800

Original price was: $1,367.91.Current price is: $1,093.70.

4 in stock

SKU: 38301 Category:


The McDonnell & Miller 47-2 Water Feeder with Cut-Off 132800 is a multi-functional device combining:

  • Water feeder: Maintains the minimum safe water level in steam and hot water boilers, independent of electricity.
  • Low water cut-off (LWCO): Automatically shuts down the boiler burner if the water level falls below a critical point, preventing damage and ensuring safety.

Key Features:

  • Proportional feed action: Feeds water steadily as the level drops, maintaining optimal boiler operation.
  • Continuous level maintenance: Works constantly, even during power outages, to protect the boiler.
  • Quick hook-up fittings: Simplify installation and connection to the boiler system.
  • Quick-change replaceable cartridge valve and strainer: Easy maintenance for optimal performance.
  • Optional No. 2 switch: Can be added for additional control functions like alarm or pump activation on low water conditions.
  • Maximum steam pressure: 25 psi.
  • Maximum water supply pressure: 150 psi.
  • Maximum inlet water temperature: 120°F (49°C).


  • Enhanced safety: Protects your boiler from low water hazards and potential explosions.
  • Increased efficiency: Maintains ideal water level for optimal boiler performance and fuel savings.
  • Peace of mind: Continuously monitors and automatically responds to water level changes, even without electricity.
  • Easy maintenance: Quick-change components and accessible connections simplify upkeep.
  • Versatility: Can be used with steam and hot water boilers and offers optional control functionalities.

Things to consider:

  • Compatibility: Ensure the 47-2 matches your boiler type, pressure rating, and water temperature requirements.
  • Installation: Proper installation by a qualified technician is crucial for safety and optimal performance.
  • Maintenance: Regular inspection and testing are recommended to ensure the Water Feeder and LWCO functions are working correctly.

Overall, the McDonnell & Miller 47-2 Water Feeder with Cut-Off 132800 is a dependable and versatile solution for maintaining appropriate water levels and protecting your steam or hot water boiler. Its combination of automatic features, ease of use, and reliable performance makes it a popular choice for boiler safety and efficiency.

Additional information

Weight 30.96 lbs


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