The Drehfix is a basement drain with integrated, removable backwater valve (Type 5). In addition, it protects connected discharge points such as washbasins, showers or washing machines against wastewater from the sewer. With an odour trap, sludge bucket, manually locked emergency closure and a drainage capacity of 1.8 l/s, it can be used flexibly and is so compact that it fits in the recesses of old cast iron drains. It is therefore ideally suited for renovation projects.
Features & benefits
- Integrated backwater valve (Type 5) with removable design
- Protects discharge points against sewer wastewater backflow
- Includes odour trap and sludge bucket
- Manually locked emergency closure
- Drainage capacity: 1.8 l/s
- Compact dimensions fitting old cast iron drain recesses
- One-handed closure operation
- Requires only 30 mm overlap for old cast iron pipe connection
- No tools needed for maintenance
Applications
- Washbasins
- Showers
- Washing machines
- Renovation projects
- Basements with old cast iron drains
Technical specifications
| Load Class | K 3 (EN 1253-1) |
|---|---|
| Nominal Size (DN) | 100 |
| Installation Depth (with backwater valve) | 210 mm |
| Drainage Capacity | 1.8 l/s |
| Odour Trap | Included |
| Sludge Bucket | Included |
Article overview
Drehfix basement drain
With backwater valve
With backwater valve
| Picture | Load class | Installation depth | Nominal size (DN) | Odour trap | Backwater protection | Item no. | Show |
|---|---|---|---|---|---|---|---|
![]() | K 3 (EN 1253-1) | 210 mm | 100 | included | Type 5 | 27301 | Show 27301 |
Without backwater valve
Without backwater valve
| Picture | Load class | Nominal size (DN) | Odour trap | Backwater protection | Cover material | Locking | Item no. | Show | |
|---|---|---|---|---|---|---|---|---|---|
![]() | K 3 (EN 1253-1) | 100 | included | Polymer | placed | 33101 | Show 33101 |

