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McDonnell & Miller General Catalogue Industrial Controls

McDonnell & Miller Series 21 Water Feeders Make-up

• For boiler receiver tanks
• Direct mounting eliminates need for equalizing connections
• Proportional feed action
• Mounting Flange – six 7⁄16″ (11.1mm) bolt holes on a 53⁄4″ (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 221 Water Feeders Make-up

• For boiler receiver tanks
• Direct mounting eliminates need for equalizing connections
• Proportional feed action
• Mounting Flange – six 17⁄32″ (13.5mm) bolt holes on a 81⁄2″ (216mm) 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

The McDonnell & Miller Series 21 & 221 provide continuous protection against a low water condition. Furthermore it satisfies pump control needs for commercial and industrial steam boilers.

If you need a different model other than those listed, please contact us at info@controlssupplychain.com.

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