WaStop International AB products

WaStop inline check valves have been an industry leader since their inception in 2000.  Developed on the same principles that are the foundation of Wapro, WaStop’s ingenious function combines common sense and simplicity, to provide our customers with the best possible protection against flooding, odour control and backflow.

The patented Wastop® inline check valve has been the innovator and industry leader since its inception. Wastop excels at preventing backflow, flooding, and sewage odor spread in pipe networks. It can be inserted into almost any existing pipe. Unlike any other check valve available today, Wastop® can be mounted horizontally, vertically, on an inlet, outlet, in a chamber, or utilizing flanges. Installation is a breeze!

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:

WaStop PVC range is primarily used in sewer and odour applications.  The PVC range is installed inline with the existing pipes using flexible couplings or slide couplings. WaStop PVC range is available from DN75mm (NPS 3″) up to DN 200mm (NPS 8″).  For dimensions over this size PE or Stainless is recommended.

The PVC Series was designed to enable retro-fitting with ease. We identified the most common pipe sizes for residential type installations to be 75mm - 200mm. We then designed a WaStop range to be installed inline on existing lines. WaStop Residential is a standard range available off the shelf for fast delivery. Our distribution network around the world maintains inventory to ensure that homes can be protected quickly and easily.

The WaAccess Chamber is a complete inspection chamber Ø425 with DN110 – 160mm connections.  Inside the chamber is a WaStop check valve to prevent back-flow.  The ‘easy-remove’ check valve makes the chamber easy to rinse.  The check valve can be removed from ground level.  WaAccess Chamber can be installed in sewage, drainage and surface water networks.

You may not have experienced it yourself, but we’re pretty sure you’d understand the feeling. We have all read about homes being damaged by sewage backflow. We can imagine the distress the family goes through. We can even imagine the smell although we don’t want to. To protect families from living through this nightmare we’ve developed a product called WaBack Residential.

The revolutionary patented and certified Wastop® inline check valve can be installed in minutes in a pipeline or chamber. It can be installed either horizontally or vertically and either at an inlet or outlet. WaStop® can be installed to prevent backflow in all cases. Flow in the normal direction causes a slight pressure buildup against the membrane which in turn causes the membrane to open just enough to allow the flow to pass unhindered. When backflow occurs the membrane fills with water or gas and acts as a stopper blocking all back flow in the pipe or drain. WaStop® check valve can be designed to withstand up to 12 meters back pressure.

We know that stormwater runoff in intensive storms can cause flooding. By utilizing effective flow regulation we know that flooding can be minimized and even mitigated. Our team of engineers had one thought in mind whilst designing the new WaReg 3.0. Creating the perfect flow regulator for real-life situations.

The WaBack Access Chamber provides you with peace of mind. Once installed theWaBack Access chamber provides complete protection against backflow in the sewer or combined sewer network. One ingenious product protects your basement or property from flooding caused by an overload or surcharge in the sewer system.