Features
For steam and hot water boilers with cold water feed
Continuous maintenance of minimum safe water level, independent of electrical service
Proportional feed action
Quick hook-up fittings provided
Quick-change replaceable cartridge valve and strainer
Model 47 can be field upgraded with a No. 2 switch to add low water cut-off function
Maximum water supply pressure 150 psi (10.5 kg/cm2)
Maximum inlet water temperature 120°F (49°C)
Maximum boiler pressure 25 psi (1.8 kg/cm2)
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