Mcdonnell & Miller 51-S-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function)

For high capacity [up to 35,000 sq. ft. (3250m2)] low pressure steam and hot water boilers with cold water feed Optional features v No. 2 switch v Manual reset v Float block Proportional feed action Maximum water supply pressure 100 psi (7 kg/cm2) Maximum inlet water temperature 120 F (49 C) Maximum vessel pressure 35 psi (2.5 kg/cm2)