Low-lying drains must be protected against backwater
Floor drains with backflow prevention are an important component in buildings – particularly in areas where water needs to be drained away, such as boiler rooms, plant rooms, bathrooms and utility rooms. They serve to drain water efficiently whilst preventing water from flowing back into the building from the drainage system. They may be used whenever drainage is not required during a backflow event.
Products with a combined drain and backflow prevention function
Depending on the specific application, various products are available as floor drains with built-in backflow prevention:
Drain with backwater valve
- For sewage without faecal matter
- For a pipe with a constant downward gradient to the sewer
- No drainage in the event of backwater
Drain with backwater valve & light liquid trap
- For sewage without faecal matter
- For a pipe with a constant downward gradient to the sewer
- No drainage in the event of backwater
Drain with backwater valve & pump
- For sewage without faecal matter
- For a continuously descending pipe to the sewer
- Drainage in the event of backwater using a pump
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