Mainline ML-4XP 4″ Sch 40 PVC Adapt-a-Valve Extendable Backwater Valve

The Adapt-a-Valve Extendable Backwater Valve was invented because there was a need to have easy access to enable servicing  of backwater valves deeper than 2 feet.  The only other options were expensive and unsightly ‘vaults’ or ‘access culverts’ in which someone had to crawl down to service the backwater valve. Another option, which was strictly against code but done by unscrupulous persons, was to completely bury a valve with no intention of ever servicing the backwater valve. The Adapt-a-Valve not only made extendible backwater valves easy to install, inspect and service, but with the special gate slot molded right into the body, it could easily be used for ‘pressure’ testing the ground works by adding the Test Gate feature. Hence, the name Adapt-a-Valve – because it could be adapted to various functions!

Features and benefits

• Extendable with standard 6 in. DWV
• The combination mainline adapt-a-valve backwater valve is a break through in technology and is quickly setting a new standard across North America
• Adapt a valve backflow accessories are what excel this extendible backwater valve years ahead of its time
• Eliminates manhole or expensive vaults
• Allows easy ground level access at any depths
• Removable seat and gate (cassette) allows full servicing of unit
• Reflective sticker in body serves as guide for ease of cassette insertion
• Cassette locks in body
• Lightest gate in the industry offers next-to-no flow-restriction
• Double hinge gate design keeps gate aligned to seat
• 4″ Schedule 40 PVC

Technical Information

Adapt-A-Valve-Brochure-English