7150 BACKWATER VALVES
   

 

7140 Flood-Gate Backwater Valve Button

 

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IN-LINE MANUAL SHUT-OFF GATE VALVE
FUNCTION: Functions as a drainage control valve; flapper type backwater valve provides normal protection against sewage backflow into building. Manually closed "spade" type gate valve provides additional complete "closure" protection during emergency storm conditions or when building is completely shut down.
Regularly Furnished: Variations: Optional Materials:
Duco Cast Iron Body and Cover with Removable Wheel Handle. Bronze Gate and Flapper Valve. Cast Iron Extensions as Indicated by Figure Number. Outlet Sized for Service Weight -SW
  (When Specified)		 Galvanized Cast Iron -G

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.
Fig. 7150C.....CAULK INLET & NO-HUB OUTLET
Fig. 7150Y.....NO-HUB INLET & OUTLET

NOTE: Fig. 7150C and 7150Y are accessible from finished floor. Non-rising stem with spade-shaped gate assures positive closure.

 Fig. 7151C ....with 12 in. Extension (04" size)
Fig. 7151Y......with 12 in. Extension (04"size)
Fig. 7152C.....with 24 in. Extension (04" size)
Fig. 7152Y......with 24 in. Extension (04" size)
Fig. 7153C.....with 9 1/2 in. Extension (06" size)
Fig. 7153Y......with 9 1/2 in. Extension (06" size)
Fig. 7154C.....with 21 1/2 in. Extension (06" size)
Fig. 7154Y......with 21 1/2 in. Extension (06" size)		 Fig. 7155C.....WITH EXTENSION ADAPTOR
Fig. 7155Y......NO-HUB 04 & 06" SIZES ONLY

NOTE: During periods when manual shutoff valve is closed, use of building plumbing fixtures and drains must be avoided.

7140 Flood-Gate Backwater Valve

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