Termex Backwater Valves

Specifications:
  • 4" Schedule 40 PVC Body
  • 2 Hinge System
  • Light Weight ABS Gate
  • High Durometer Neoprene O-Ring Seal
  • Normally Closed version pictured at right
  • (Normally Open version available)
  • Patent Pending

Specifications:

  • Drainage Lines
  • Lift Stations
  • Sewage Systems
  • Septic Tanks
  • Storm Water Retention Ponds
  • End of Pipe Backflow Protection
Mainline Termex Backwater Backflow Prevention Valves
4" Termex Normally and Normally Closed Backwater Valves

The Termex Backwater Valve offers a simple solution to bring patented Mainline Backwater Valve technology based protection to the end of an open pipe.  Simply glue to the end of your Schedule 40 PVC or use a Fernco (brand) Neoprene Rubber with Stainless Steel Clamp Adapter.


drain pipe backflow prevention protect the end of a pipe from a backflow
lift station backflow preventor sewer system backflow preventor

Termex valve brochure in Adobe Acrobat pdf file format Termex Backwater Valve Brochure (Adobe Acrobat pdf) - termex backwater valve pricing


 

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Adapt-A-Valves

adobe acrobat pdf filesAdapt-A-Valve Brochure (Adobe Acrobat pdf)

Adapt-A-Valve Inspection Chamber

Backwater Valve Diagram
Backwater Valve Features
Back water valves information
Backflow Links
Backflow Preventers
Backwater Valve Animation
Backwater Valve Videos

Basement Drain Backing Up

 contact us about your backwater valve needsContact Us

Back water valve questions

Frequently Asked Questions

adobe acrobat pdf filesFullport Backwater Valve Brochure (Adobe Acrobat pdf)

how to install your backwater valveINSTALLATION TIPS;  how to install backwater valves 

Termex Backwater Valves
Termex Backwater Valve Brochure (Adobe Acrobat pdf)

Mainline ML-FR4 Backwater Valve (Fio Valve)
adobe acrobat pdf filesML-FR4 Mainline Backwater Valve Fio Valve Brochure (Acrobat pdf)

6" Backwater Valves - Mainline STRAIGHT FIT Backwater Valves

Mainline History

backwater valve measurements and specificationsMeasurements, Specifications and IAPMO Certifications

Pedestal Sump Pumps / Submersible Sump Pumps -

Testimonials

Mainline Fullport Backwater Valves offer the right solution for your sewer backup problems. SPECIAL OFFER: Mainline Backwater Valve "Combo" with Access Box ($89.00 value if purchased separately) Valves without Access Box are also available with a slight shipping discount in the price.

Protect Your Home with a Backwater Valve
from Backwater-Valve.com

telephoneAll Orders must be placed online by Credit Card,
but you may phone Greg at 330.836.9393 for info
(9 AM - 4 PM EST Monday - Friday or Voicemail anytime)

emailEmail: Help@Backwater-Valves.com

copyright 2004-2017 Backwater-Valves.com.
Akron, OH, USA
All rights reserved.

backflow prevention links

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)

Policies

Mainline Valve Warranty
(in printable Adobe Acrobat .pdf file)

buy backwater valves online
High-volume inquires are directed to Tom at Mainline

 

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