Backwater Valves :: 7012,7022 Series Sewer Valve

7012 AND 7022 BACKWATER VALVES

	7070	7080

SEWER VALVES
FUNCTION: 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.

Regularly Furnished:	Optional Materials:
Duco Cast Iron Body with Backwater Valve. Cover as Indicated by Figure Number.	Galvanized Cast Iron -G Stainless Steel (Specify Fig. 9795)

7012 Sewer Valve Drawing

7012, 7022 Sewer Valve Data

SIZED FOR SERVICE WEIGHT AND/OR NO-HUB

7022 Sewer Valve Drawing

NOTE: These valves offer protection against backwater surges. Backflow is prevented when valve is not obstructed by debris or sludge. Use for gravity flow only, not for pressurized applications.
NOTE: B.W.V. Flapper set at factory to hang in closed position. Pin can be moved to permit flapper to hang open 1/4" to permit air circulation.
Fig. 7012S . . . HUB INLET - SPIGOT OUTLET	Fig. 7022S . . . HUB INLET - SPIGOT OUTLET

7012,7022 Sewer Valve

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