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- Used in main or branch sewer lines to protect basements and low areas against backflow from the street sewers. Valve design permits access to backwater valve assembly, for servicing or cleaning, through a "full opening" bolted cover or threaded cover.
Sewer Backwater Valve, Series: 7022, 4 in Nominal, Spigot, Cast Iron Body
- Duco cast iron body with bronze backwater valve
- Pin can be moved to permit flapper to hang open 1/4 in to permit air circulation
- 2 to 4 in size furnished with delrin backed neoprene flapper
- All other sizes furnished with bronze flapper
- Hub inlet and spigot outlet
- Body MaterialCast IronEnd StyleSpigotNominal Size4 inManufacturerJay R. Smith Mfg. CoManufacturer #7022S04Series7022