Product Description
HS74CA combination water supply units integrate pressure
reducing valve, reverse rinsing fine filter, non-return valve, and automatic reverse rinsing actuator in one appliance. Therefore, these units comprise all armatures needed for private water supply systems and ensure continuous supply of filtered water. The pressure reducing valve prevents overpressure damage and reduces water consumption. The fine filter stops the ingress of foreign bodies. The non-return valve protects the mains water system. The automatic reverse rinsing actuator operates with batteries, therefore, there is no need for a bus
bar in the area of the water supply. It is responsible for the fully automatic cleaning of the fine filter. All individual units correspond to the requirements of current DIN/DVGW specifications.
Technical Properties
| Approvals |
DIN/DVGW for filter combination FK74C and for non-return valve RV277 |
| Media |
water |
| DN size |
32 mm |
| Port connection |
external threads |
| Port diameter |
1 1/4 inch |
| Mounting position |
horizontal or vertical |
| Nominal pressure |
PN16 |
| Outlet pressure |
1,5 ... 6 bar |
| Max. media temperature |
30 oC |
| Flow capacity Kvs |
6,5 |
| Body material |
synthetic material |
| Spring bonnet material |
synthetic material |
| Filter mesh |
100 micron |
| Transparant strainer chamber |
Yes |
| Balanced seat design |
Yes |
| Filter type |
reverse rinsing |
| Reverse rinsing with filtered water |
Yes |
| Integrated non-return device |
Yes |
| Additional Descriptions |
- Inlet pressure compensation - fluctuating inlet pressures
do not influence outlet pressure
- Battery-operated automatic reverse rinsing actuator, acoustic signal when battery is running low; reverse rinsing can also be activated manually
- Patented reverse rinsing system - fast and thorough
cleaning of the filter with small amount of water
- Filtered water supplied even during reverse rinsing
- Owing to its short construction length it is also suitable for limited space
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