Product Description
Backflow preventers of this type are suitable for the protection of drinking water systems against back pressure, back flow and back syphonage. They are used to protect the temporary water tapping of standpipes
on events or construction sites. Fluids up to and including liquid category 4 to EN 1717 are protected.
Technical Properties
| Approvals |
DVGW approved |
| Media |
Water |
| Liquid category (EN1717) |
class 4 |
| DN size |
20 mm |
| Port connection |
external threads |
| Port diameter |
1 inch |
| Mounting position |
vertical |
| Minimum inlet pressure |
1,5 bar |
| Nominal pressure |
PN10 |
| Max. media temperature |
65 oC |
| Body material |
brass, dezincification resistant |
| Additional Descriptions |
- Pivoted top connection
- Optimal protection of the drinking water supply system
- Integral inlet strainer
- Inlet check valve and discharge valve are combined in one cartridge
- Minimal maintenance required, because the valve cartridge is completely replaceable
- Optimized design prevents water stagnation
- Compact construct
- Easy access to all internal components
- Low pressure loss and high flow rate
- Triple security - two check valves and a discharge valve separate the backflow preventer into three pressure zones
- Meets KTW recommendations for potable water
- Easy and quick installation
- Each tapping can be protected separately
- Seal-jacket to protect against manipulations
- Easy maintenance due to upstream shut-off
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