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- WaBack - Non-Return Chamber Valve
WaBack - Non-Return Chamber Valve
Even if we haven’t experienced it ourselves, we know about it. We have all read about homes being filled with sewage. We can feel the distress the family goes through. We can even imagine the smell although we don’t want to. The founder of Wapro, Mats Persson, was devoted to creating a solution that provided peace of mind to home owners. His guiding thoughts were:
- 100% sealed against backflow
- Autonomous action with no moving or electrical parts
- Minimal maintenance for real life scenarios
When we designed the WaBack we designed it to provide instant, automatic protection against backflow. Our engineers designed WaBack to work on differential pressure to ensure that in times of need the valve simply protects. No electricity or human interaction required, and without constant maintenance WaBack protects against flooding caused by surcharged sewers.
With long life-cycle cost as part of our DNA we’ve ensured that WaBack is designed and constructed using materials designed to withstand the rigors of sewer applications. Each part of the WaBack is designed to tolerate chemicals usually found in sewer applications with ease. WaBack is commonly used for sewer surcharge protection, sewer overflows, and stormwater backflow protection.
- Completely automatic
- Virtually maintenance free
- Constructed from corrosion free materials with a long service life
- No flow restriction – the pipe is 100% open during period of normal flow
- Full sewage ventilation
- Easy visual inspection
- Unaffected by paper, silt or sludge
- Tested in operation since 1989
- Operates even as an inspection manhole
When Mats Persson designed the original WaBack his thoughts were with the families who he’d met who’d suffered from surcharged sewers flooding their homes. By keeping properties dry Mats intended to provide peace of mind for families. So, in the late 1980’s, after a long period of development, Mats launched WaBack onto the market in Sweden. Since then, the WaBack has been installed in many countries protecting thousands of homes and families.
Our WaBack is designed to be used in heavily polluted water and can therefore be used in both sewer and stormwater applications. When designing WaBack we chose to have a completely open flow area to ensure blockages won’t occur. Experience has led to further development of the WaBack. Our engineers have fine-tuned the mechanism to ensure decades of low maintenance protection and there is an optional alarm to inform the home owners that WaBack is protecting them from flooding. WaBack is an all-in-one installation with a manhole for inspection purposes and an inbuilt automatic check valve. All designed for keeping properties safe and dry.
We at Wapro love protecting people and property from flooding and in line with our customer promise of common sense and simplicity, we have developed Waback to ensure our products fit real life applications.
WaBack is manufactured using anti-corrosive materials such as PE, EPDM and stainless steel. Operational interruptions are minimized due to the simplicity of the unit.
Three versions of WaBack are available:
Standard: Complete chamber with backwater stop and sealing ring for the corrugated PP shaft. Designed to fit Wavin Tegra 600mm corrugated PP shaft. Available in DN110, DN160, DN200 and DN315
Access: Complete chamber with backwater stop and sealing ring for the corrugated PP shaft. WaBack module is removable from ground level. Designed to fit Wavin Tegra 425mm corrugated PP shaft. Available in DN110, DN160.
Residential: Complete sealed unit for installation in basement. Available in DN110. See WaBack Residential for more information on this product.
Technical information relating to WaStop can be found on these pages.
- Drawings
- Technical Specifications
- Installation Instructions
- Certifications