25A LIQUID LEVEL CONTROL - MAKE UP WATER FEEDER Vendor_McDonnell & Miller • Maximum water supply pressure

• Maximum water supply pressure 150 psi (10

The reset button will need to be pressed when the water level is restored to a level above the probe to allow the burner to fire

• For low pressure steam and hot water boilers larger than 5

• Maximum pressure 250 psi (17

• Maximum water temperature 250°F (121°C)

25A LIQUID LEVEL CONTROL - MAKE UP WATER FEEDER Vendor_McDonnell & Miller • Maximum water supply pressureWater Feeders Make Up Series 25 A Make Up Water Feeder 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 120F (49C) Maximum vessel pressure 35 psi (2. 5 kg cm2) McDonnell & Miller 25 A Series Data Sheet