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Watts Combination Backflow Preventer Buy Page
Fill Valve for Hot Water Boilers
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An assembly of Watts 9D Backflow Preventer and 1156F feed water pressure regulator.
Used on boiler supply feed lines to provide make-up water to the boiler.
Prevents backflow when supply pressure falls below system pressure.
High capacity fill valve for quick system filling and purging.
FEATURES:
- Maximum pressure 100 psi (689.5 kPa)
- Maximum temperature 212°F (100°C)
- Boiler fill valve set at 15 psi (103.4 kPa)
- Adjustable range 10-25 psi (68.9 - 172.4 kPa)
- Pre-assembled for ease of installation
- Easy service accessibility
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