- Brand:Â McDonnell & MillerSeries:Â 53 Series
- For low pressure steam and hot water boilers larger than 5000 sq-ft with hot or cold water feed
- Proportional feed action
- Maximum water supply pressure 150 psi
- Maximum inlet water temperature 120 deg F
- Maximum vessel pressure 75 psi
- McDonnell & Miller Mechanical Water Feeder, Series: 53 Series