McDonnell & Miller Make-Up Water Feeders

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McDonnell & Miller Series 21/221 Make-Up Water Feeders

Features:

For boiler receiver tanks
Direct mounting eliminates the need for equalizing connections
Proportional feed action
Mounting flange – six 7/16" (11.1mm) bolt holes on a 5-3/4" (146mm) bolt circle
Soft seat provides positive seal
Maximum water supply pressure: 150 psi (10.5 kg/cm²)
Maximum inlet water temperature: 120°F (49°C)
Maximum vessel pressure: 35 psi (2.5 kg/cm²)

McDonnell & Miller Series 25-A Make-Up Water Feeders

Series 25-A float-operated, proportional feed action make-up water feeders are for boiler receiver tanks. Their soft seat provides a positive seal; however, the seal between the float chamber and valve chamber is not positive.

Features:

Maximum water supply pressure: 100 psi (7 kg/cm²)
Maximum inlet water temperature: 120°F (49°C)
Maximum vessel pressure: 35 psi (2.5 kg/cm²)

McDonnell & Miller Series 551-S Make-Up Water Feeders

Series 551-S are for applications where water is added to steam separators, receivers, tanks, or other vessels. They feature proportional feed action and a quick-change replaceable cartridge valve and strainer.

Features:

Float block
Maximum water supply pressure: 75 psi (5.3 kg/cm²)
Maximum inlet water temperature: 120°F (49°C)
Maximum vessel pressure: 25 psi (1.8 kg/cm²)

McDonnell & Miller Make-Up Water Feeder Series 851, 851-S, and 847

These make-up water feeders are ideal for receiver tanks in commercial or industrial applications. They mount directly on the receiver, eliminating the need for equalizing connections. In addition, they feature a quick-change replaceable cartridge valve and strainer, proportional feed action, and a standard mounting flange between all models – six 7/16" (11.1mm) bolt holes on a 5-3/4" (146mm) bolt circle.