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Description
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Series 51/51-2 Mechanical Water Feeders/Low Water Cut-Offs
  • For low pressure steam and hot water boilers larger than 5,000 sq. ft. (465m sq.) 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 lg/cm sq.)

  • Maximum inlet water temperature 120 degrees F (49 degrees C)

  • Maximum vessel pressure 35 psi (2.5 kg/cm sq.)

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    Specs
    Application:
    Steam Boilers
    Hot Water Boilers
    Type:
    Float-Style
    Max Pressure (PSI):
    150
    Max Vessel Pressure:
    35 psi
    Reset Type:
    Automatic
    Max Inlet Water Temp (F):
    120°F
    Width (Inches):
    9"
    Height:
    10.375"
    Electrical Ratings (AFL):
    10.2 A @ 120 VAC
    5.1 A @ 240 VAC
    Electrical Ratings (ALR):
    61.2 @ 120 Vac
    30.6 @ 240 VAC
    Pilot Duty Rating:
    125 VA
    Size:
    1"
    Connection Type:
    Threaded
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