Description
The McDonnell & Miller 193-A-7BM (164600) combines low water cut-off and feed-pump control for commercial and industrial steam boilers. An integral water column connects to the boiler, while magnetic actuation transfers float movement to the switching mechanism without a bellows.
- No. 7B switch with a 135-ohm proportional control signal
- Manual reset configuration
- Maximum operating pressure: 150 psi
- Integral water column with gauge-glass and tri-cock tappings
- Magnetic actuation without bellows
- Alternate tapping configuration; match the exact model and piping layout
