McDonnell & Miller 51-2 Water Feeder with Cut-Off 135000

Description

The McDonnell & Miller 51-2 Water Feeder with Cut-Off is a combination device for low-pressure steam and hot water boilers, serving two crucial functions:

1. Water Feeder:

• Automatically maintains the minimum safe water level in the boiler, eliminating the need for manual filling and ensuring optimal boiler operation.
• Works independently of electricity, providing continuous protection even during power outages.
• Features proportional feed action, meaning the water is steadily added as the level drops, preventing sudden fluctuations and maintaining ideal boiler conditions.

2. Low Water Cut-Off (LWCO):

• Monitors the water level and automatically shuts down the boiler burner if it falls below a critical point.
• This prevents potentially damaging low water conditions and safeguards against boiler explosions.
• Features a No. 2 switch that can be used for additional control functions, such as activating an alarm or an electric water feeder, upon low water detection.

Key Features:

• Quick-change replaceable cartridge valve and strainer for simplified maintenance.
• Maximum water supply pressure: 150 psi
• Maximum inlet water temperature: 120°F (49°C)
• Available in different connection sizes and with various options for manual reset and low water alarm functionality.

Benefits:

• Enhanced safety: Protects your boiler from the dangers of low water and potential explosions.
• Increased efficiency: Maintains the ideal water level for optimal boiler performance and fuel savings.
• Peace of mind: Provides continuous monitoring and automatic response to water level changes, even without electricity.
• Reliable performance: Proven design and durable construction ensure long-lasting operation.
• Versatility: Suitable for various boiler types and offers additional control options through the No. 2 switch.

Things to consider:

• Compatibility: Ensure the 51-2 model 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 both the Water Feeder and LWCO functions are working correctly.

Overall, the McDonnell & Miller 51-2 Water Feeder with Cut-Off is a valuable and versatile solution for maintaining ideal water levels and protecting your low-pressure 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.