851S MECHANICAL WATER FEEDER W/ Ext. FLOAT AND ROD ASSY Basket Strainer • Optional low voltage switches

• Optional low voltage switches for self-generating millivolt circuits

All programmable parameters are stored in non-volatile memory

• Maximum inlet water temperature 120°F (49°C)

1 GPM | 0-0

Combination Low Water Cut-Off/Pump Controllers for Steam Boilers

851S MECHANICAL WATER FEEDER W/ Ext. FLOAT AND ROD ASSY Basket Strainer • Optional low voltage switchesWater Feeders Make Up Series 851 S Make Up Water Feeder Extended float and rod assembly Wider operating range Maximum water supply pressure 100 psi (7 kg cm2) Maximum inlet water temperature 120F (49C) Maximum receiver pressure 35 psi (2. 5 kg cm2) McDonnell & Miller 851 S Series Data Sheet