Mcdonnell & Miller 51-S-2-M, Mechanical Water Feeder w/ no. 2 Switch (LWCO Function), w/ Manual Reset

For high capacity [up to 35,000 sq. ft. (3250m2)] low pressure steam and hot water boilers with cold water feed Specifications Proportional feed action Maximum water supply pressure 100 psi (7 kg/cm2) Maximum inlet water temperature 120 Deg. F (49 Deg. C) Maximum vessel pressure 35 psi (2.5 kg/cm2)