Product Description
The refilling combination serves automatic filling and refilling from closed heating systems to DIN EN 12828:2014-07. The refilling combination can be connected in accordance to DIN EN 1717:2000 constantly with the drinking water supply. The refilling combination combines a CA type backflow preventer, pressure reducing valve and ball valves in one appliance. The refilling combination contains all devices for refilling a heating installation, according to conforming standards.
Technical Properties
| Product description |
with 1/2" threaded connections |
| Approvals |
- DIN/DVGW approved check valve
|
| Media |
Water without inhibitors |
| Port connection |
external threads |
| Mounting position |
horizontal |
| Nominal pressure |
PN10 |
| Outlet pressure |
1.5 ... 6 bar |
| Max. media temperature |
65 oC |
| Materials |
Shut-off valve, up- and downstream in dezincification-resistant brass, high-grade synthetic material discharge connection, valve cartridge, valve insert, springbonnet, check valve and diaphragm in fibre-reinforced NBR, adjustment spring in spring steel, seals in NBR and EPDM, insulation shell in EPP. |
| Maximum inlet pressure |
10 bar |
| Minimum inlet pressure |
1.5 bar |
| Liquid category (EN1717) |
class 3 |
| Additional description |
- Permanent connection with the drinking water supply in accordance with EN 1717 by hose line or piping is possible
- Triple security - two check valves and a discharge valve separate the backflow preventer into three pressure zones
- Optimal protection of the drinking water supply system
- Pressure reducing valve with inlet pressure balancing - inlet pressure fluctuation does not influence the outlet pressure
- Field-tested, reliable pressure reducing valve
- Outlet pressure adjustable and directly visible on the pressure gauge
- DIN/DVGW approved check valve
- Compact construction
- Low maintenance effort
- Corrosion resistant by use of brass and stainless steel
- Low pressure loss and high flow rate
- Variable connection options to the heating system
- Meets KTW recommendations for drinking water
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