The McDonnell & Miller 193 (Part Number: 163400) is a combination low water cut-off and pump controller designed for commercial and industrial steam boilers operating at pressures up to 150 psi. This device ensures consistent water levels regardless of pressure fluctuations, enhancing boiler safety and efficiency. It features a water column with integral tappings for gauge glass and tri-cock installations, facilitating easy monitoring and maintenance. The unit includes a No. 5 Switch for automatic reset functionality and utilizes magnetic repulsion, eliminating the need for bellows and reducing maintenance requirements. With 1″ NPT connections, the 193 model is suitable for boilers of any steaming capacity.
150 PSI
ITT
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| Manufacturer | McDonnell & Miller |
| Model | 193 |
| Part Number | 163400 |
| Application | Steam Boilers |
| Function | Combination Low Water Cut-Off and Pump Controller |
| Reset Type | Automatic |
| Switch Type | No. 5 Switch (SPDT) |
| Maximum Pressure | 150 psi (10.5 kg/cm²) |
| Connection Size | 1″ NPT |
| Column Connections | 1/2″ NPT for gauge glass and tri-cocks |
| Optional Features | Manual reset, 7B switch for proportional control |
| Dimensions | Depth: 13″, Length: 20-1/2″, Width: 6-3/4″ |
| Electrical Ratings | 345 VA at 120 or 240 VAC |