Description
The McDonnell & Miller 51S-2 (135900) is a float-operated water feeder for low pressure steam and hot water boilers. Proportional feed action adds water as the boiler level falls. The included No. 2 switch adds a low water cut-off function.
- Maximum water supply pressure: 100 psi
- Maximum boiler/vessel pressure: 35 psi
- Maximum inlet water temperature: 120°F
- No. 2 low water cut-off switch
