Description
Xylem-McDonnell & Miller 63-M Mechanical Low Water Cut Off
The Xylem-McDonnell & Miller 63-M is a reliable, mechanically operated low water cut off designed to protect hot water and steam boilers from the dangers of low water conditions. When water drops below the safe operating level, the 63-M automatically shuts down the burner, preventing costly damage and potential hazards. The manual reset feature ensures that an operator must consciously restore operation, adding an extra layer of safety before the boiler is returned to service.
Key Features
- Manual reset operation — requires deliberate operator action before resuming boiler service
- Mechanical float-based design — no electrical sensing components required for water level detection
- 1″ NPT connection for straightforward installation on standard boiler tappings
- 50 PSI maximum boiler pressure rating
- Compatible with both hot water and steam boiler applications
- Durable construction built to withstand demanding boiler room environments
- Part Number: 143100
Specifications
- Brand: Xylem-McDonnell & Miller
- Model / SKU: 63-M
- Part Number: 143100
- Connection Size: 1″ NPT
- Maximum Boiler Pressure: 50 PSI
- Reset Type: Manual Reset
- Control Type: Mechanical Low Water Cut Off
- Application: Hot Water and Steam Boilers
Application
The 63-M is ideal for residential and light commercial boiler installations where a dependable, code-compliant low water cut off is required. Its mechanical float operation makes it a trusted choice for steam and hot water heating systems, providing peace of mind and protecting your boiler investment from dry-fire damage.
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