51S-2M MECHANICAL WATER FEEDER LWCO W/ #2 SWTICH AND MANUAL RESET Basket Strainer • Dual precision switches for

• Dual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder

independent of electrical service

Hoffman 75 Air Valve Data Sheet

2 bar) at maximum supply pressure

UTILITY DUTY GEAR PUMPS

51S-2M MECHANICAL WATER FEEDER LWCO W/ #2 SWTICH AND MANUAL RESET Basket Strainer • Dual precision switches forWater Feeders Mechanical Series 51 S 51 S 2 Mechanical Water Feeders Low Water Cut Offs For high capacity [up to 35,000 sq. ft. (3250m2)] low pressure steam and hot water boilers with cold water feed Optional features No. 2 switch Manual reset Float block Proportional feed action Maximum water supply pressure 100 psi (7 kg cm2) Maximum inlet water temperature 120F (49C) Maximum vessel pressure 35 psi (2. 5 kg cm2) McDonnell & Miller Water Feeder Data