Series 51/51-2 Mechanical Water Feeders/Low Water Cut-Offs

McDonnell & Miller : Water Feeders :

Features and Benefits

  • For low pressure steam and hot water boilers larger than
  • 5,000 sq. ft. (465m2) capacity with cold water feed
  • Quick-change replaceable cartridge valve and strainer
  • Optional features
  • – No. 2 switch
  • – Manual reset
  • – Float block
  • Proportional feed action
  • Model 51 can be field upgraded with a No. 2 switch to
  • add low water cut-off function
  • Maximum water supply pressure 150 psi (10.5 kg/cm2)
  • Maximum inlet water temperature 120°F (49°C)
  • Maximum vessel pressure 35 psi (2.5 kg/cm2)

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