Series 21 Make-Up Water Feeder

The Series 21 make-up water feeder provides dependable, float-operated automatic water filling
service to tanks used as condensate receivers in boiler systems. The valve components are of brass,
an elastomer sealing disc and stainless steel materials, and a 4-3/4” diameter copper float providing closure against supply pressure up to 150 PSI. An integral strainer and housing with removable drainage plug precede the valve for regular servicing. The control is a direct-feeding unit (feeds through the flange connection) available in two flange sizes.

Features

• 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 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)