Features and Benefits ot the McDonnell & Miller Series 47/247

  • For steam and hot water boilers with cold water feed
  • Continuous maintenance of minimum safe water level,
  • independent of electrical service
  • Proportional feed action
  • Quick-change replaceable cartridge valve and strainer
  • Quiet, durable operation
  • Isolated feed valve minimizes lime and scale build-up
  • Optional features
    Β Β Β  – No. 2 switch
    Β Β Β  – Manual reset
  • Model 247 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 120Β°F (49Β°C)
  • Maximum vessel pressure 30 psi (2.1 kg/cm2)

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