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Classification: Type I – intended for use in horizontal pipe runs to floor drains, building drains, sewers, holding tanks, etc. Application: Backwater valves should be used in building drainage systems whenever a risk of flooding due to sewer surcharge, back up, or failure exists.
Component: Body, Lid, Gate, Cleanout plug Acrylonitrile-Butadiene-Styrene ( ABS ) Plastic Bolting System: Bolts - Stainless steel ¼ x ¾, Nuts - ¼ stainless steel Gate Seal: Neoprene rubber ( Buna 50 durometer #241 ) Lid Gasket: Flat-section closed-cell gasket Neoprene 3/16 x 3/8 ( 1220 RL BL x 1 ) Floatation Devices: Closed-cell cross-linked polyethylene ( PEX ) foam “Boltaron Polyethylene” Dimensions: Width: 10" (254 mm), Length: 15.5" (394 mm), Height: 11" ( 280 mm ) Certifications & Approvals:
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Adapt-A-Valve Inspection Chamber Backwater Valve Diagram
Termex Backwater Valves NEW: TOP-CHECK BACKWATER VALVES Mainline ML-FR4 Backwater Valve (Fio Valve) 6" Backwater Valves - Mainline STRAIGHT FIT Backwater Valves
Mainline Fullport Backwater Valves offer the right solution for your sewer backup problems.
Protect Your Home with a Backwater Valve All Orders must be placed ONLINE by Credit Card
copyright 2004 to 12/21/2024 at 9:37:12 ET
backwater-valves.com is independently owned and resells products produced and manufactured by Mainline of Canada and assumes no liability for the installation of backwater valves and related products. Be sure to check with the plumbing authority in the municipality in which your valve is to be installed to insure that your installation is in compliance with local code, and be sure have your valve inspected by your local plumbing inspector after installation. Inspect your valve frequently; the Backwater Valve through its clear plastic housing top, and the Adapt-A-Valve, by removing the gate cassette. IMPORTANT NOTES: Pipe end-to-end, the Adapt-A-Valve takes up 6" of run in your line and the outlet is 1-1/2" LOWER than the inlet, so in just 6" the level of the pipe at the outlet side needs to be 1-1/2" lower. Pipe end-to-end, the Backwater Valve takes up 12" of run in your line and the outlet is 3/4" LOWER than the inlet, so in just 12" the level of the pipe at the outlet side needs to be 3/4" lower. Depending upon the amount of slope in your line (2% minimum is required for proper operation), you may need to replace several feet of pipe downstream from the valve to average out this "loss" of fall. NOTE: New Straight-Fit and ML-FR4 require less slope. (refer to detail pages for these products) Mainline Valve Warranty
Backwater-valves.com accepts these
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Backwater valves must be installed to ensure access for inspection or maintenance.
INSTALLATION TIPS;
how to install backwater valves
For non-order info, you may phone Greg at 330.836.9393 9 AM - 4 PM EST M-F
