Note: Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.
Series 911 combination fill valve and backflow preventer consists of a Model 9D backflow preventer and Model 1156F feed water pressure regulator in one pre-assembled unit. This valve is designed for use on boiler feed lines to provide make-up water to the boiler and prevent backflow when supply pressure fails below system pressure.
- A combination fill valve and backflow preventer shall be installed on the boiler feed line to provide make-up water to the boiler.
- The valve shall contain a Watts Regulator Model 9D backflow preventer and Model 1156 feed water pressure regulator.
- The combination fill valve and backflow preventer shall be a Watts Regulator Company Series 911.
- Pre-assembled for ease of installation
- Easy service accessibility
- High capacity fill valve for quick system filling and purging