Description
The Xylem-McDonnell & Miller 750B-C-4 (Part Number 176317) is a cast iron body, remote mount liquid level control engineered for reliable boiler and hydronic system water level monitoring and protection. Designed for use with 4 probes, this unit features a NEMA 4X-rated enclosure for superior resistance to corrosion, dust, and water ingress — making it well-suited for demanding mechanical room environments.
The 750B-C-4 includes both sight glass tappings and gage cock tappings, allowing operators to visually verify water level directly at the unit while the electronic probe system provides accurate, low-maintenance level sensing. The remote mount configuration offers installation flexibility, enabling the control head to be positioned separately from the probe assembly for easier wiring access and serviceability.
Key Features
- Cast iron body construction for durability in boiler and hydronic applications
- Remote mount design for flexible installation and easy service access
- Compatible with 4 probes for multi-level liquid sensing and control
- NEMA 4X enclosure — resistant to corrosion, dust, and water ingress
- Sight glass tappings for direct visual water level verification
- Gage cock tappings for pressure/level testing and maintenance
- Part Number: 176317
Applications
- Steam and hot water boiler water level control and protection
- Hydronic heating systems requiring remote-mounted level monitoring
- Industrial and commercial boiler rooms with corrosive or wet environments
- Multi-probe level sensing configurations requiring NEMA 4X protection
Product Specifications
- Body Material: Cast Iron
- Mount Type: Remote Mount
- Number of Probes: 4
- Enclosure Rating: NEMA 4X
- Tappings: Sight Glass and Gage Cock
- Brand: Xylem-McDonnell & Miller
- Part Number: 176317
- SKU: 750B-C-4
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