Detention cistern for rainwater detention and sewer relief
- A detention cistern retains the rainwater and drains it into the sewer at a delayed speed.
- GRAF cistern for rainwater detention and sewer relief.
- To guarantee retention of rainwater, a delayed drain is fitted in the sewer with a delay of 0.05 to 16 l/sec. depending on the customer’s specifications.
- In the event of heavy rainfall, the water level in the cistern rises above this level and is drained into the sewer at a delayed speed using a floating drain choke. This relieves the sewer and the treatment works. The water level can rise to the emergency overflow and sink slowly back down again after the rain.
- We also construct and supply individual, special solutions.
Advantages Platin XXL flat tank:
- Rotating tank dome to easily align the connecting lines
- Available with a second tank dome as an option
- Suitable for HGV loading up to a vehicle weight of 30 t (66138 lbs)
- Flexible connection up to DN 300 (12")
- Connection openings with prefitted DN 150 (6") lip seals
- Tank height of just 125 cm (4' 1")
- High-quality, integrated DN 150 (6") filter technology
- Dome opening with stainless steel profile for precision fit and secure mounting
- Connection fitting of up to DN 200 (8"), on tank dome of up to DN 300
Scope of supply:
- Platin XXL flat tank
- Detention set: floating choke drain, outlet fittings with emergency overflow, DN 100 (4") connection
Not included in the scope of supply:
- Matching cover
- Installation of optional Platin XL/XXL detention/retention filter package 2
Sizing
| Length [mm] | Width [mm] | Height [mm] | Weight [kg] | Volume [l] | order no. | add to enquiry |
|---|---|---|---|---|---|---|
| 29700 | 2250 | 1910 | 2825 | 65000 | 391309 | |
| 27795 | 2250 | 1910 | 2645 | 60000 | 391308 | |
| 25195 | 2250 | 1910 | 2395 | 55000 | 391307 | |
| 22935 | 2250 | 1910 | 2180 | 50000 | 391306 | |
| 21030 | 2250 | 1910 | 2000 | 45000 | 391305 | |
| 18430 | 2250 | 1910 | 1750 | 40000 | 391304 | |
| 16510 | 2250 | 1910 | 1570 | 35000 | 391303 | |
| 14265 | 2250 | 1910 | 1355 | 30000 | 391302 | |
| 11580 | 2250 | 1910 | 1140 | 25000 | 391301 | |
| 9405 | 2250 | 1910 | 890 | 20000 | 391300 |
calculated size Request for information
Technical details
Accessibility
Earth covering with loading capacity [mm]
700 - 1300
max. axle load [t]
2.2
max. vehicle weight [t]
3.5
max. vehicle weight with reinforced concrete slab [t]
60
Groundwater installation
Earth covering with groundwater installation [mm]
700 - 1500
