The Staufix Ø 50 or Staufix Ø 75 can be used to easily protect individual drainage points such as washbasins, showers or washing machines in rooms below the backwater level against backwater.
The Staufix Ø 50 or Ø 75 is installed in the horizontal drainage pipe and can also protect several drainage points.
Thanks to the standard-compliant sizing, they are a guaranteed fit in existing installations, regardless of the manufacturer.
The backwater valves are versatile in use: They can be installed to provide individual protection for washbasins, showers or washing machines or as a central backwater protection in horizontal drainage pipes.
As the first standard-compliant backwater double valves for wastewater without sewage according to EN 13564 Type 2, the Staufix DN 50 and DN 70 are equipped with two flaps and an emergency closure. Cleaning and maintenance is possible without tools thanks to the quick-release closure.
Features & benefits
- Standard-compliant design: equipped with two flaps and emergency closure; first standard-compliant backwater double valves for wastewater without sewage according to EN 13564 Type 2
- Tool-free maintenance: cleaning and maintenance possible without tools thanks to quick-release closure
- Flexible installation: can protect individual drainage points or multiple points centrally
- Universal compatibility: standard sizing ensures fit in existing installations regardless of manufacturer
- Versatile use: can protect washbasins, showers, or washing machines individually or as central backwater protection in horizontal drainage pipes
Applications
- Individual protection for washbasins below backwater level
- Shower drain protection in rooms below backwater level
- Washing machine drainage protection
- Central backwater protection in horizontal drainage pipes
- Multi-point protection (up to two drainage points with DN 70 model)
- Any drainage points in rooms below backwater level
Technical specifications
| Nominal Size (DN 50 model) | DN 50 |
|---|---|
| Nominal Size (DN 70 model) | DN 70 |
| Backwater protection type | Type 2 |
| Standard compliance | EN 13564 Type 2 |
| Number of flaps | 2 |
| Emergency closure | Yes |
| Installation situation | Exposed (horizontal) drainage pipe |
| Maintenance | Tool-free, quick-release closure |
Article overview
Staufix DN 50 / 70 backwater valve
Staufix DN 50
Staufix DN 50
| Picture | Nominal size (DN) | Backwater protection | Installation situation | Item no. | Show |
|---|---|---|---|---|---|
![]() | 50 | Type 2 | exposed drainage pipe | 73050 | Show 73050 |
Staufix DN 70
Staufix DN 70
| Picture | Nominal size (DN) | Backwater protection | Installation situation | Item no. | Show |
|---|---|---|---|---|---|
![]() | 70 | Type 2 | exposed drainage pipe | 73070 | Show 73070 |

