Xylem 194-7B Low Water Cut-Off and Pump Controller with Potentiometer Switch

The Xylem McDonnell & Miller 194-7B is a combination low water cut-off and pump controller designed for commercial and industrial steam boilers. This control provides continuous protection against low water conditions while satisfying pump control needs for boilers of any steaming capacity with a maximum operating pressure of 250 PSI.

Key Features:

• Equipped with No. 7B potentiometer switch providing 135 ohm proportional signal for constant water level control
• Magnetic repulsion design eliminates the need for bellows, increasing reliability and longevity
• Automatic reset functionality for continuous operation
• Water column with integral tappings for gauge glass and tri-cock installations
• 1-1/4" NPT threaded connections for easy installation
• Ten bolt flange design for secure mounting
• Maximum pressure rating of 250 PSI (17.6 kg/cm²)

The Series 194 maintains consistent water levels regardless of pressure variations, making it ideal for commercial and industrial low or high pressure steam boiler applications. The proportional control feature allows for precise water level management, preventing dangerous low water conditions while optimizing boiler efficiency.

Specifications:

• Manufacturer Part Number: 167200
• Connection Size: 1-1/4" NPT
• Maximum Pressure: 250 PSI
• Switch Type: No. 7B Potentiometer (135 ohm)
• Dimensions: 20.5" Height x 6" Width x 13" Depth
• Weight: Approximately 72 lbs