Model # 475

Internet #100153819

Store SKU #637520

null 4 in. ABS Backwater Valve
0052063434759

4 in. ABS Backwater Valve

$3140 /each

Product Overview

The NDS 4 in. ABS Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. The quick-action flapper allows unrestricted unidirectional flow and features an elastomeric gasket to ensure a watertight seal. It has limited lifetime warranty.
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Frequently Bought Together

Product Overview

The NDS 4 in. ABS Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. The quick-action flapper allows unrestricted unidirectional flow and features an elastomeric gasket to ensure a watertight seal. It has limited lifetime warranty.
  • ABS is chemically resistant
  • Use to protect basements or low areas from street sewer backflow
  • Outdoor use
  • H x H connection
  • 5 psi maximum working pressure
  • Requires a working temperature of -30 - 140 degrees
  • Quick-action flapper allows an unrestricted, unidirectional flow and is easy to remove and replace
  • Elastomeric gasket in the flapper for a watertight seal
  • Threaded cap is designed for tightening by hand
  • Neoprene gasket in the access cap provides a positive seal
  • Valve hub outlets fit 4 in. DWV pipe

Product Overview

Model #: 475
Sku #: 637520
Internet #: 100153819

The NDS 4 in. ABS Backwater Valve is designed to protect low areas or basements from the backflow of waste from street sewers. The quick-action flapper allows unrestricted unidirectional flow and features an elastomeric gasket to ensure a watertight seal. It has limited lifetime warranty.

  • ABS is chemically resistant
  • Use to protect basements or low areas from street sewer backflow
  • Outdoor use
  • H x H connection
  • 5 psi maximum working pressure
  • Requires a working temperature of -30 - 140 degrees
  • Quick-action flapper allows an unrestricted, unidirectional flow and is easy to remove and replace
  • Elastomeric gasket in the flapper for a watertight seal
  • Threaded cap is designed for tightening by hand
  • Neoprene gasket in the access cap provides a positive seal
  • Valve hub outlets fit 4 in. DWV pipe

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Name Sure Vent Wall Box with Grill Faceplate 4 in. ABS Backwater Valve 4 in. PVC Backwater Valve 500 DFU PVC Sure-Vent Air Admittance Valve
Brand Oatey Oatey
Ratings (5) (2) (13) (4)
Valve Outlet Diameter (in.) 2.62 4.9 4 4
Connection Snap-on Sewer & Drain Sewer & Drain Screw on
Valve Inlet Diameter (in.) 2 3.5 4 4
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Specifications

Dimensions

Product Depth (in.)
8
Product Height (in.)
8
Product Length (in.)
8
Product Width (in.)
11.31
Valve Inlet Diameter (in.)
3.5
Valve Outlet Diameter (in.)
4.9

Details

Compatible Pipe Material
ABS
Connection
Sewer & Drain
Material
Acrylonitrile Butadiene Styrene (ABS)
Maximum Pressure (psi)
5
Maximum Working Temperature (F)
140
Product Weight (lb.)
2.83lb
Returnable
90-Day
Valve Type
Air Admittance

Warranty / Certifications

Manufacturer Warranty
Limited Time

Specifications

Dimensions

Product Depth (in.)
8
Product Height (in.)
8
Product Length (in.)
8
Product Width (in.)
11.31
Valve Inlet Diameter (in.)
3.5
Valve Outlet Diameter (in.)
4.9

Details

Compatible Pipe Material
ABS
Connection
Sewer & Drain
Material
Acrylonitrile Butadiene Styrene (ABS)
Maximum Pressure (psi)
5
Maximum Working Temperature (F)
140
Product Weight (lb.)
2.83lb
Returnable
90-Day
Valve Type
Air Admittance

Warranty / Certifications

Manufacturer Warranty
Limited Time

Questions & Answers

Can I use on a French drain system, I have a river that I'm discharge into for rain water, if the river gets too high

Asked by: Rog
The backwater valve fits schedule 40 (or ABS) pipe. There is no problem using this as part of a french drain system, but you might need to get some adapters depending on the type of pipe you are using.
Answered by: Dr. Drainage
Date published: 2017-09-12
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Customer Reviews

4 in. ABS Backwater Valve is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from GOING TO HELP SAVE MY HOUSE When we had our last big rain in 2015, the towns drain system was full and backing up in everyones sumb pump/ground water drain pipes that are hooked up to the towns drain. So this almost flooded my house, with this back water valve it will help stop this from happening again. These should be standard to be placed in your system . Easy to install, I had to dig some, cut into the drain pipe and put this in place, anyone can do this
Date published: 2016-05-31
Rated 5 out of 5 by from Great product at a great price Had a failure of the 30 year old original valve. Looked high and low for an economical and local solution. Order online and it came earlier than first estimated. The product fit well and is far superior to the original. With preparation, tools, lights, and crawling in and out of the crawl space, I was at the DIY for 90 minutes. Leak check 24 hours later showed a very good seal.
Date published: 2015-04-27
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