Features and Benefits of the McDonnell & Miller Series 25-A


  • For boiler receiver tanks
  • Float operated
  • Proportional feed action
  • Soft seat provides positive seal
  • Seal between float chamber and valve chamber is not a positive seal
  • Maximum water supply pressure 100 psi (7 kg/cm2)
  • Maximum inlet water temperature 120Β°F (49Β°C)
  • Maximum vessel pressure 35 psi (2.5 kg/cm2)

Extra product images

McDonnell & Miller Series 25-A


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