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Watts Combination Backflow Preventer Buy Page
Fill Valve for Hot Water Boilers
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Watts Combination Backflow Preventer
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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.
Watts Backflow Preventers prevents backflow when supply pressure falls below system pressure.
High capacity fill valve for quick system filling and purging.
Watts Combination Backflow Preventer 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 accessibility
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