Description
McDonnell & Miller 163000 93-7B – Float-Type Low Water Cutoff & Pump Controller (Steam)
Reliable Water Level Control for Low and High Pressure Steam Boilers
The McDonnell & Miller 93-7B is a float-style low water cutoff and pump controller designed for steam and hot water boilers up to 50 PSI. Equipped with dual precision switches, including the standard 7B switch, it provides dependable automatic reset control for low water cutoff, alarm functions, or electric water feeders. Its rugged design ensures consistent water level maintenance across a range of commercial and industrial boiler capacities.
Key Features:
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Float-type low water cutoff for steam or hot water boilers
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Dual precision switches with automatic reset for reliable operation
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Includes 7B switch (135-ohm proportional control signal) for precise boiler water level control
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Magnetic repulsion design eliminates the need for bellows
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Side tapping with 2-1/2" female IP threaded connection for easy installation
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Suitable for boilers with steaming capacities of any size
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Optional manual reset available
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Maximum pressure rating: 50 PSI (150 PSI optional)
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Pilot duty rating: 125 VA
Specifications
| Attribute | Details |
|---|---|
| Part Number | 163000 93-7B |
| Application | Steam Boilers |
| Type | Float-Style Low Water Cutoff |
| Switch | Dual Precision Switches |
| Reset Type | Automatic (Manual Optional) |
| Max Pressure (PSI) | 50 (150 PSI optional) |
| Connection Size | 2-1/2" Female IP Threaded |
| Connection Type | Threaded |
| Includes | 7B Switch |
| Pilot Duty Rating | 125 VA |
